제출 #570518

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
570518	2022-05-30 11:05:01	codebuster_10	Robot (JOI21_ho_t4)	C++17	0 / 100	103 ms	23444 KiB

Main

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#include <bits/stdc++.h>
#define int int64_t //be careful about this 
 
using namespace std;
 
#define vt vector 
#define ar array 
#define pr pair 
 
#define f first 
#define s second
 
#define pb push_back
#define eb emplace_back
 
#define fr(i,a,b) for(int i = a; i < b; ++i)
#define rf(i,a,b) for(int i = b-1; i >= a; --i)
#define all(x) x.begin(),x.end()
#define mem(a,b) memset(a,b,sizeof(a))
 
namespace IN{
  template<class T> void re(vector<T> &A);
  template<class S,class T> void re(pair<S,T> &A);
  template<class T,size_t N> void re(array<T,N> &A);
 
  template<class T> void re(T& x){ 
    cin >> x;}
  template<class H, class... T> void re(H& h, T&... t){ 
    re(h); re(t...);}
 
 
 
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컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void FUN::IO(std::string)':
Main.cpp:68:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |       freopen((s+".in").c_str(),"r",stdin);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:69:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |       freopen((s+".out").c_str(),"w",stdout);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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