Submission #1278511

#	Time	Username	Problem	Language	Result	Execution time	Memory
1278511		gugug	Stove (JOI18_stove)	C++20	100 / 100	14 ms	1072 KiB

stove

#include <bits/stdc++.h>

using namespace std;

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);

    vector<int> v;
    int n, k;
    cin >> n >> k;
    int t1, t2;
    int mx = -1e9, mn = 1e9;
    for (int i = 0; i < n; i++) {
        t2 = t1;
        cin >> t1;
        if (i) v.emplace_back(t1-t2-1);
        mn = min(mn, t1);
        mx = max(mx, t1);
    }

    sort(v.rbegin(), v.rend());
    
    int ans = mx - mn + 1;

    int idx = 0;
    for (k--; k > 0; k--, idx++) {
        ans -= v[idx];
    }

    cout << ans;


    return 0;
}

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