제출 #1193578

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1193578		cpdreamer	자매 도시 (APIO20_swap)	C++20	0 / 100	48 ms	4524 KiB

swap

#include "swap.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const long double EPS = 1e-9;
const ll MOD=998244353;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
typedef tree<int,null_type,greater<int>,rb_tree_tag,
        tree_order_statistics_node_update> indexed_set;
void file(){
    freopen("input.txt.txt","r",stdin);
    freopen("output.txt.txt","w",stdout);
}
#define pb push_back
#define P pair
#define S second
#define F first
#define all(v) v.begin(),v.end()

void init(int N, int M,
          std::vector<int> U, std::vector<int> V, std::vector<int> W) {
}

int getMinimumFuelCapacity(int X, int Y) {
    return -1;
}

컴파일 시 표준 에러 (stderr) 메시지

swap.cpp: In function 'void file()':
swap.cpp:12:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     freopen("input.txt.txt","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
swap.cpp:13:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     freopen("output.txt.txt","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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