topcoder/src/SwappingDigits.java at master · yuki2006/topcoder · GitHub

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// Paste me into the FileEdit configuration dialog
// Single Round Match 583 - Round 1250.0

publicclassSwappingDigits {
publicStringminNumber(Stringnum) {
Stringmin = newString(num);
for (inti = num.length() - 1; i >= 0; i--) {
for (intj = num.length() - 1; j >= 0; j--) {

char[] charArray = num.toCharArray();
chartmp = charArray[i];
charArray[i] = charArray[j];
charArray[j] = tmp;
if (charArray[0]== '0') {
continue;
 }
Stringstring = newString(charArray);
if (min.compareTo(string) > 0) {
min = string;
 }
 }
 }
returnmin;

	}

// BEGIN CUT HERE
publicstaticvoidmain(String[] args) {
if (args.length == 0) {
SwappingDigitsHarness.run_test(-1);
 } else {
for (inti = 0; i < args.length; ++i)
SwappingDigitsHarness.run_test(Integer.valueOf(args[i]));
 }
	}
// END CUT HERE
}

// BEGIN CUT HERE
classSwappingDigitsHarness {
publicstaticvoidrun_test(intcasenum) {
if (casenum != -1) {
if (runTestCase(casenum) == -1)
System.err.println("Illegal input! Test case " + casenum + " does not exist.");
return;
 }

intcorrect = 0, total = 0;
for (inti = 0;; ++i) {
intx = runTestCase(i);
if (x == -1) {
if (i >= 100)
break;
continue;
 }
correct += x;
 ++total;
 }

if (total == 0) {
System.err.println("No test cases run.");
 } elseif (correct < total) {
System.err.println("Some cases FAILED (passed " + correct + " of " + total + ").");
 } else {
System.err.println("All " + total + " tests passed!");
 }
	}

staticbooleancompareOutput(Stringexpected, Stringresult) {
returnexpected.equals(result);
	}

staticStringformatResult(Stringres) {
returnString.format("\"%s\"", res);
	}

staticintverifyCase(intcasenum, Stringexpected, Stringreceived) {
System.err.print("Example " + casenum + "... ");
if (compareOutput(expected, received)) {
System.err.println("PASSED");
return1;
 } else {
System.err.println("FAILED");
System.err.println(" Expected: " + formatResult(expected));
System.err.println(" Received: " + formatResult(received));
return0;
 }
	}

staticintrunTestCase(intcasenum__) {
switch (casenum__) {
case0: {
Stringnum = "596";
Stringexpected__ = "569";

returnverifyCase(casenum__, expected__, newSwappingDigits().minNumber(num));
 }
case1: {
Stringnum = "93561";
Stringexpected__ = "13569";

returnverifyCase(casenum__, expected__, newSwappingDigits().minNumber(num));
 }
case2: {
Stringnum = "5491727514";
Stringexpected__ = "1491727554";

returnverifyCase(casenum__, expected__, newSwappingDigits().minNumber(num));
 }
case3: {
Stringnum = "10234";
Stringexpected__ = "10234";

returnverifyCase(casenum__, expected__, newSwappingDigits().minNumber(num));
 }
case4: {
Stringnum = "93218910471211292416";
Stringexpected__ = "13218910471211292496";

returnverifyCase(casenum__, expected__, newSwappingDigits().minNumber(num));
 }

// custom cases

/*
 * case 5: {
 * String num = ;
 * String expected__ = ;
 *
 * return verifyCase(casenum__, expected__, new
 * SwappingDigits().minNumber(num));
 * }
 */
/*
 * case 6: {
 * String num = ;
 * String expected__ = ;
 *
 * return verifyCase(casenum__, expected__, new
 * SwappingDigits().minNumber(num));
 * }
 */
/*
 * case 7: {
 * String num = ;
 * String expected__ = ;
 *
 * return verifyCase(casenum__, expected__, new
 * SwappingDigits().minNumber(num));
 * }
 */
default:
return -1;
 }
	}
}

// END CUT HERE