제출 #369259

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
369259		notrichardpeng	A Huge Tower (CEOI10_tower)	C++11	0 / 100	71 ms	4708 KiB

tower

#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define pi pair<int, int>
#define endl '\n'
 
void setIO(string name = "") { 
    ios_base::sync_with_stdio(0); 
	cin.tie(0);     
    if (name.length()) {
        freopen((name+".in").c_str(), "r", stdin); 
        freopen((name+".out").c_str(), "w", stdout);
    }
}

int n, d;
vector<int> A;
const int MOD = 1e9 + 9;

int main(){			 
    setIO("");
    cin >> n >> d;
    for(int i = 0; i < n; i++){
        int a; cin >> a;
        A.push_back(a);
    }
	cout << 1 << endl;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

tower.cpp: In function 'void setIO(std::string)':
tower.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   12 |         freopen((name+".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tower.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   13 |         freopen((name+".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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