Submission #3715682

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Source Code Expand

#include<stdio.h>
#include<stdlib.h>
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<string>
#include<cmath>
#include<vector>
#include<stack>
#include<queue>
#include<time.h>
#include<tuple>
#include<set>
#include<map>
#include<cctype>
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define vint vector<int> 
#define vvint vector<vint>
#define ct(a) cout<<a<<endl
#define tget(a,b) get<a>(b)
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
const int INF = 1e9;
const int MOD = 1e9 + 7;
ll N,M;
ll ans;
int main(void) {
	cin >> N >> M;
	if (N == 1 && M == 1)ct(1);
	else if (N == 1)ct(M - 2);
	else if (M == 1)ct(N - 2);
	else ct((N - 2)*(M - 2));
	
	system("pause");
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:35:17: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result]
  system("pause");
                 ^

Judge Result