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

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// Paste me into the FileEdit configuration dialog
// SRM 379 DIV 2 - 500.0

publicclassSellingProducts {
/**
 * @param price
 * @param cost
 * @return
 */
publicintoptimalPrice(int[] price, int[] cost) {
intmax = 0;
intmax_price = 0;
for (inti = 0; i < price.length; i++) {
intsumGain = 0;
for (intj = 0; j < price.length; j++) {
if (price[j] >= price[i]) {
intgain = price[i] - cost[j];
if (gain >= 0) {
sumGain += gain;
 }
 }
 }
if (max < sumGain || max == sumGain && max_price > price[i]) {
max = sumGain;
max_price = price[i];
 }
 }

returnmax_price;
	}


publicintoptimalPrice2(int[] price, int[] cost) {
intmaxGain = 0;
intmax_price = 0;
intmin = Integer.MAX_VALUE;
intmax = 0;
for (inti : price) {
min = Math.min(i, min);
max = Math.max(i, max);
 }
for (intprofit = min; profit <= max; profit++) {
intsumGain = 0;
for (intj = 0; j < price.length; j++) {
if (price[j] >= profit) {
intgain = profit - cost[j];
if (gain >= 0) {
sumGain += gain;
 }
 }
 }
if (maxGain < sumGain || maxGain == sumGain && max_price > profit) {
maxGain = sumGain;
max_price = profit;
 }
 }

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

// BEGIN CUT HERE
classSellingProductsHarness {
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(intexpected, intresult) {
returnexpected == result;
	}

staticStringformatResult(intres) {
returnString.format("%d", res);
	}

staticintverifyCase(intcasenum, intexpected, intreceived) {
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: {
int[] price = { 13, 22, 35 };
int[] cost = { 0, 0, 0 };
intexpected__ = 22;

returnverifyCase(casenum__, expected__, newSellingProducts().optimalPrice(price, cost));
 }
case1: {
int[] price = { 13, 22, 35 };
int[] cost = { 5, 15, 30 };
intexpected__ = 13;

returnverifyCase(casenum__, expected__, newSellingProducts().optimalPrice(price, cost));
 }
case2: {
int[] price = { 13, 22, 35 };
int[] cost = { 15, 30, 40 };
intexpected__ = 0;

returnverifyCase(casenum__, expected__, newSellingProducts().optimalPrice(price, cost));
 }
case3: {
int[] price = { 10, 10, 20, 20, 5 };
int[] cost = { 1, 5, 11, 15, 0 };
intexpected__ = 10;

returnverifyCase(casenum__, expected__, newSellingProducts().optimalPrice(price, cost));
 }
case4: {
int[] price = { 13, 17, 14, 30, 19, 17, 55, 16 };
int[] cost = { 12, 1, 5, 10, 3, 2, 40, 19 };
intexpected__ = 17;

returnverifyCase(casenum__, expected__, newSellingProducts().optimalPrice(price, cost));
 }

// custom cases

case5: {
int[] price = { 603875, 216153, 220035, 500054, 793572, 724531, 897981, 7609, 599878, 430889, 444382,
991458, 321402, 229627, 584934, 781473, 179044, 252396, 800867, 263880, 707055, 253905, 911167,
689308, 668959, 850939, 671027, 198120, 949934, 644711, 75549, 450678, 523576, 655894, 773878,
408913, 674886, 161884, 178978, 398677, 624052, 265836, 765308, 79916, 102813, 452849, 599214,
927097, 14077, 120382 };
int[] cost = { 591991, 443889, 579916, 906579, 770798, 587746, 569253, 311106, 178865, 169759, 646510,
758444, 148407, 7905, 662700, 73065, 787007, 222692, 838841, 374393, 809822, 390961, 894289,
716049, 768959, 427118, 223893, 498945, 761190, 301931, 688418, 834297, 625187, 270144, 662449,
609710, 147868, 22657, 102137, 47825, 445377, 175455, 483864, 966080, 227521, 308711, 815605,
751818, 505979, 876484 };
intexpected__ = 599878;

returnverifyCase(casenum__, expected__, new
SellingProducts().optimalPrice(price, cost));
 }

/*
 * case 6: {
 * int[] price = ;
 * int[] cost = ;
 * int expected__ = ;
 *
 * return verifyCase(casenum__, expected__, new
 * SellingProducts().optimalPrice(price, cost));
 * }
 */
/*
 * case 7: {
 * int[] price = ;
 * int[] cost = ;
 * int expected__ = ;
 *
 * return verifyCase(casenum__, expected__, new
 * SellingProducts().optimalPrice(price, cost));
 * }
 */
default:
return -1;
 }
	}
}

// END CUT HERE