Hactoberfest2021/FirstAndLastIndex.java at main · python4geeks/Hactoberfest2021 · GitHub

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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}
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importjava.util.Scanner;

publicclassFirstAndLastIndex {

publicstaticintfirstIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intfi = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
fi = mid;
high = mid - 1;
 }

 }
returnfi;

 }

publicstaticintlastIndex(int[] a,intk){

intlow = 0;
inthigh = a.length-1;


intli = -1;

while(low <= high)
 {

intmid = (low+high)/2;
if(k<a[mid])
 {
high = mid -1;
 }
elseif(k>a[mid])
 {
low = mid + 1;
 }
else
 {
li = mid;
low = mid + 1;
 }

 }
returnli;

 }
privatestaticvoidDisplay(intarr[])
 {
for (intval : arr) {

System.out.println(val);

 }
 }

publicstaticvoidmain(String[] args) {


Scannerscn = newScanner(System.in);

inttc = scn.nextInt();

intarr[] = newint[tc];

for (inti = 0; i < arr.length; i++) {

arr[i] = scn.nextInt();

 }


intk = scn.nextInt();

intfirstIndex = firstIndex(arr,k);
intlastIndex = lastIndex(arr,k);
System.out.println(firstIndex);
System.out.println(lastIndex);

 }


}