Submission #1034571

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034571		sunboi	Stove (JOI18_stove)	C++17	100 / 100	43 ms	3284 KiB

stove

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




signed main()
{
    int n, k; cin >> n >> k;
    vector<int> a(n);
    vector<int> gaps;
    for (int i = 0; i < n; i++){
        cin >> a[i];
    }
    int ans = a[n - 1] + 1 - a[0];
    for (int i = 1; i < n; i++){
        gaps.push_back(a[i] - (a[i - 1] + 1));
    }
    sort(gaps.begin(), gaps.end());
    reverse(gaps.begin(), gaps.end());
    for (int i = 0; i < k - 1; i++){
        ans -= gaps[i];
    }
    cout << ans << endl;
}

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