제출 #1108362

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1108362		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	152 ms	33896 KiB

art

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

const int N = 1e6 + 5;

int n;

pair<int, int> item[N];

int p[N];

int32_t main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    #define Task "Flower"
    if(fopen(Task".inp","r")){
        freopen(Task".inp","r",stdin);
        freopen(Task".out","w",stdout);
    }
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> item[i].first >> item[i].second;
    }
    sort(item + 1, item + n + 1);
    for(int i = 1; i <= n; i++){
        p[i] = p[i - 1] + item[i].second;
    }
    int res = 0;
    priority_queue<int> pq;
    pq.push(0);
    for(int i = 1; i <= n; i++){
        pq.push(item[i].first - p[i - 1]);
        res = max(res, p[i] - item[i].first + pq.top()); 
    }
    cout << res;

}

컴파일 시 표준 에러 (stderr) 메시지

art.cpp: In function 'int32_t main()':
art.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen(Task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
art.cpp:19:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         freopen(Task".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50