Submission #3667923

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Source Code Expand

/*  -*- coding: utf-8 -*-
 *
 * b.cc: B: Colored Balls
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>

using namespace std;

/* constant */

/* typedef */

/* global variables */

/* subroutines */

/* main */

/*
  a + 3b = x, 3a + b = y ->
  |1 3| |a| = |x|
  |3 1| |b|   |y|
  |a| = |-1/8  3/8| |x|
  |b| = | 3/8 -1/8| |y|
 */

int main() {
  int x, y;
  scanf("%d%d", &x, &y);

  int a = -x + 3 * y;
  int b = 3 * x - y;

  if (a >= 0 && b >= 0 && a % 8 == 0 && b %8 == 0) puts("Yes");
  else puts("No");
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:47:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &x, &y);
                        ^

Judge Result