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DSA Practice

Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.

Structure

Problems are organized by topic. Each problem folder contains:

  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions

Problems

Arrays

ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python

Implementation

ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python

Strings

ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP

Approach

Every solution folder documents:

  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in

About

Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.

Topics

dsa-algorithmhackerrankjavaphppython

Resources

Readme
Activity

Stars

0 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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BranchesTags
Latest commit
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17 Commits
Folders and files
NameName
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arrays
arrays
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implementation
strings
strings
README.md
README.md
Repository files navigation
DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Folders and files
NameName
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implementation
strings
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README.md
Repository files navigation
DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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17 Commits
Folders and files
NameName
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arrays
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implementation
strings
strings
README.md
README.md
Repository files navigation
DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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Latest commit
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17 Commits
Folders and files
NameName
Last commit message
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arrays
arrays
implementation
implementation
strings
strings
README.md
README.md
Repository files navigation
DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Latest commit
History
17 Commits
Folders and files
NameName
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arrays
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implementation
implementation
strings
strings
README.md
README.md
Repository files navigation
DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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implementation
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README.md
Repository files navigation
DSA Practice
Data structures and algorithms problems from HackerRank, solved in Java, Python, and (where noted) PHP. Each problem has its own folder with a written approach, complexity analysis, and difficulty rating.
Structure
Problems are organized by topic. Each problem folder contains:
  • README.md — problem statement, approach explanation, time/space complexity, and difficulty
  • Solution.java, solution.py, and (where applicable) Solution.php — working solutions
Problems
Arrays
ProblemDifficultyLanguages
A Very Big SumEasyJava, Python
Birthday Cake CandlesEasyJava, Python, PHP
Compare the TripletsEasyJava, Python
Diagonal DifferenceEasyJava, Python
Mini-Max SumEasyJava, Python, PHP
Plus MinusEasyJava, Python
Simple Array SumEasyJava, Python
Implementation
ProblemDifficultyLanguages
Apple and OrangeEasyJava, Python, PHP
Grading StudentsEasyJava, Python, PHP
Number Line JumpsEasyJava, Python, PHP
StaircaseEasyJava, Python
Strings
ProblemDifficultyLanguages
Camel CaseEasyJava, Python
Time ConversionEasyJava, Python, PHP
Approach
Every solution folder documents:
  • The problem statement and a link to the original HackerRank challenge
  • The reasoning behind the chosen approach
  • Time and space complexity
  • Which languages the problem is solved in
About
Multi-language HackerRank solutions (Java, Python, PHP) organized by DSA topic, each with complexity analysis.
Topics
dsa-algorithmhackerrankjavaphppython
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages