Submission #783777

#	Time	Username	Problem	Language	Result	Execution time	Memory
783777		Boas	Stove (JOI18_stove)	C++17	100 / 100	37 ms	960 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define loop(x) for (int i = 0; i < x; i++)
int main()
{
    int N, K;
    cin >> N >> K;
    // vector<int> T(N);
    vector<int> gaps;
    int prevT = -1;
    int matchesUsed = 0;
    int burnTime = N;
    loop(N)
    {
        int t;
        cin >> t;
        if (prevT == -1 || t - prevT > 1)
        {
            matchesUsed++;
            if (prevT != -1)
            {
                gaps.push_back(-1 * (t - prevT - 1)); //  gapSize
            }
        }
        prevT = t;
        // cin >> T[i];
    }
    sort(gaps.begin(), gaps.end());
    int inx = gaps.size() - 1;
    while (matchesUsed > K)
    {
        int g = -gaps[inx];
        matchesUsed--;
        burnTime += g;
        inx--;
    }
    cout << burnTime << endl;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50