제출 #743041

#제출 시각아이디문제언어결과실행 시간메모리
743041vjudge1Lasers (NOI19_lasers)C++17
0 / 100
147 ms880 KiB
#include<iostream>

using namespace std;

int arr[10000001],ck;

int main()
{
    ios_base::sync_with_stdio(0),cin.tie(0);
    int n; cin>>n;
    for(int i = 1; i<=n; ++i){
        int x,y; cin>>x>>arr[i];
        if(arr[i-1]!=arr[i] && i>1){
            ck = 1;
        }
    }
    if(!ck){
        cout<<n;
        return 0;
    }
}

컴파일 시 표준 에러 (stderr) 메시지

lasers.cpp: In function 'int main()':
lasers.cpp:12:15: warning: unused variable 'y' [-Wunused-variable]
   12 |         int x,y; cin>>x>>arr[i];
      |               ^
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