제출 #66581

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
66581		aquablitz11	휴가 (IOI14_holiday)	C++14	47 / 100	398 ms	3636 KiB

holiday

#include <bits/stdc++.h>
#include "holiday.h"
using namespace std;
using ll = long long;

const int N = 100010;

ll solve(int att[], int n, int d)
{
    /*printf("solving (%d): ", d);
    for (int i = 0; i < n; ++i)
        printf("%d ", att[i]);
    printf("\n");*/
    ll ans = 0, sum = 0;
    priority_queue<int, vector<int>, greater<int>> val;
    for (int i = 0; i < n && d > 0; ++i, --d) {
        val.push(att[i]);
        sum += att[i];
        while (val.size() > d) {
            sum -= val.top();
            val.pop();
        }
        ans = max(ans, sum);
    }
    //printf("return %d\n", ans);
    return ans;
}

ll findMaxAttraction(int n, int start, int d, int att[])
{
    if (n > 3000 && start > 0)
        return -1;
    ll ans = 0;
    for (int i = 0; i <= start; ++i)
        ans = max(ans, solve(&att[start-i], n-start+i, d-i));
    if (start > 0) {
        start = n-start-1;
        reverse(att, att+n);
        for (int i = 0; i <= start; ++i)
            ans = max(ans, solve(&att[start-i], n-start+i, d-i));
    }
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

holiday.cpp: In function 'll solve(int*, int, int)':
holiday.cpp:19:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (val.size() > d) {
                ~~~~~~~~~~~^~~
grader.cpp: In function 'int main()':
grader.cpp:7:12: warning: variable 'n_s' set but not used [-Wunused-but-set-variable]
     int i, n_s;
            ^~~

• Subtask 1: 7 / 7
• Subtask 2: 23 / 23
• Subtask 3: 17 / 17
• Subtask 4: 0 / 53