Submission #3462480

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Source Code Expand

#include <cstdio>
#include <cmath>
#include <iostream>
#include <cstring>
#include <vector>
#include <queue>
#include <deque>
#include <stack>
#include <list>
#include <map>
#include <set>
#include <cstdlib>
#include <algorithm>

#define TRACE
#ifndef TRACE

#define tcout 0 && cout
#else

#define tcout cout << "Debug: "
#endif

using namespace std;
int a,b,ans; 
int main()
{
	scanf("%d%d",&a,&b);
	ans=a-b;
	printf("%d\n",ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:28:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&a,&b);
                     ^

Judge Result