제출 #994790

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
9947902024-06-08 05:46:46guagua0407Editor (BOI15_edi)C++17
35 / 100
33 ms3420 KiB
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};
void setIO(string s) {
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
const int mxn=3e5+5;
int e[mxn];
int main() {_
int n;
cin>>n;
for(int i=1;i<=n;i++){
cin>>e[i];
//cout<<e[i]<<' ';
}
//cout<<'\n';
if(n<=5000){
 
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컴파일 시 표준 에러 (stderr) 메시지

edi.cpp: In function 'void setIO(std::string)':
edi.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
edi.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
edi.cpp: In function 'int main()':
edi.cpp:52:40: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   52 |                     active[x]=!active[x];
      |                                        ^
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