제출 #974257

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
974257		vjudge1	Fountain (eJOI20_fountain)	C++17	30 / 100	1561 ms	6004 KiB

fountain

#include<bits/stdc++.h>
using namespace std;

int main(){
    int n, q; cin >> n >> q;
    vector<pair<int, int>> soal;
    vector<pair<int, int>> elang;

    int a, b;
    for(int i = 0; i < n; i++){
        cin >> a >> b;
        soal.push_back(make_pair(a, b));
    }

    for(int i = 0; i < n; i++){
        soal.push_back(make_pair(soal[i].first, soal[i].second));
    }

    int c, d;
    for(int i = 0; i < q; i++){
        cin >> c >> d;
        elang.push_back(make_pair(c-1, d));
    }

    for(int i = 0; i < q; i++){
        int x = 0;
        int y = elang[i].second;
        int start = elang[i].first;
        int finish;
        
        for(int i = start; i < start+n-1; i++){
            if(x < soal[i].first){
                if(y > soal[i].second){
                    y -= soal[i].second;
                    x = soal[i].first;
                } else {
                    finish = i;
                    break;
                }
            } else continue;
        }
        finish = (finish+1)%n;
        cout << finish << endl;
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

fountain.cpp: In function 'int main()':
fountain.cpp:42:25: warning: 'finish' may be used uninitialized in this function [-Wmaybe-uninitialized]
   42 |         finish = (finish+1)%n;
      |                  ~~~~~~~^~~

• Subtask 1: 30 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40