제출 #477238

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
477238		niloyroot	Feast (NOI19_feast)	C++14	0 / 100	2 ms	336 KiB

feast

#include <bits/stdc++.h>
using namespace std;
#define forp(i,a,b) for(int i=a;i<=b;i++)
#define ll long long
#define newl '\n'

void solve(){
    ll n,k; cin>>n>>k;
    ll c,s=0;
    forp(i,1,n){
        cin>>c; s+=c;
    }
    cout<<s<<newl;
}

int main() {
    ios_base::sync_with_stdio(false); 
    cin.tie(NULL); 
    #ifndef ONLINE_JUDGE
        freopen("input2.txt", "r", stdin);
        freopen("output2.txt", "w", stdout);
    #endif
    solve();
}

컴파일 시 표준 에러 (stderr) 메시지

feast.cpp: In function 'int main()':
feast.cpp:20:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |         freopen("input2.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
feast.cpp:21:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         freopen("output2.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

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