Submission #66596

#	Time	Username	Problem	Language	Result	Execution time	Memory
66596		aquablitz11	Holiday (IOI14_holiday)	C++14	47 / 100	391 ms	1720 KiB

holiday

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

const int N = 100010;

int lastbest = N;
ll solve(int att[], int n, int d)
{
    ll ans = 0, sum = 0;
    priority_queue<int, vector<int>, greater<int>> val;
    int bestix = 0;
    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();
        }
        if (sum > ans)
            bestix = i;
        ans = max(ans, sum);
    }
    assert(bestix <= lastbest+1);
    lastbest = bestix;
    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);
        lastbest = N; // FOR TESTING
        for (int i = 0; i <= start; ++i)
            ans = max(ans, solve(&att[start-i], n-start+i, d-i));
    }
    return ans;
}

Compilation message (stderr)

holiday.cpp: In function 'll solve(int*, int, int)':
holiday.cpp:17:27: 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