제출 #187104

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
187104		Akashi	Candies (JOI18_candies)	C++14	0 / 100	4 ms	684 KiB

candies

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

const long long INF = 1e18;

int n;
long long a[200005];
int Left[200005], Right[200005];
priority_queue <pair <int, int> > pq;

int main()
{
    scanf("%d", &n);

    for(int i = 1; i <= n ; ++i){
        scanf("%d", &a[i]);
        Left[i] = i - 1; Right[i] = i + 1;
        pq.push({a[i], i});
    }

    long long Sol = 0;
    for(int i = 1; i <= (n + 1) / 2 ; ++i){
        while(!pq.empty() && a[pq.top().second] != pq.top().first) pq.pop();
        int pos = pq.top().second;
        pq.pop();
        Sol += a[pos];
        printf("%lld\n", Sol);

        int L = Left[pos], R = Right[pos];
        Left[pos] = Left[L]; Right[pos] = Right[R];
        Right[Left[L]] = pos; Left[Right[R]] = pos;

        a[pos] = max(a[L] + a[R] - a[pos], -INF);
        a[L] = a[R] = -INF;
        pq.push({a[pos], pos});
    }




    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

candies.cpp: In function 'int main()':
candies.cpp:16:26: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
         scanf("%d", &a[i]);
                     ~~~~~^
candies.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
candies.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 92