제출 #1348767

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1348767		msb.83	Infinite Race (EGOI24_infiniterace2)	C++20	0 / 100	0 ms	344 KiB

Main

//Rahman ve Rahim olan Allah'ın adıyla
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ins insert
#define fi first
#define se second
#define int long long
#define mid (st+end)/2
#define spc <<" "<<
#define en <<"\n"
#define amin main
int32_t amin(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    freopen("input.txt","r",stdin);freopen("output.txt","w",stdout);
    int n,q,a;cin>>n>>q;vector<int>strk(n,0);vector<int>lstn(n,0);int ans=0,lst=0;
    for(int i=0;i<q;i++){
        cin>>a;
        if(a<0){
            if(strk[abs(a)]>0){
                strk[abs(a)]=0;
            }
            //cout<<a<<"\n";
        }else{
            if(strk[abs(a)]<0){
                strk[abs(a)]=0;
            }if(strk[abs(a)]!=0&&lstn[abs(a)]<lst){strk[abs(a)]=0;}
            strk[abs(a)]++;lstn[abs(a)]=i;//cout<<"ed"<<abs(a)<<strk[abs(a)]<<"\n";
            if(strk[abs(a)]!=1){
                ans++;lst=i;//cout<<i;
            }
        }
    }
    cout<<ans;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int32_t main()':
Main.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("input.txt","r",stdin);freopen("output.txt","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:15:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen("input.txt","r",stdin);freopen("output.txt","w",stdout);
      |                                    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 29
• Subtask 2: 0 / 34
• Subtask 3: 0 / 22
• Subtask 4: 0 / 15