Submission #1257792

#	Time	Username	Problem	Language	Result	Execution time	Memory
1257792		farbetter	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1096 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define fast_io ios::sync_with_stdio(false); cin.tie(nullptr);

int main() {
    fast_io;
    int n, k; cin >> n >> k;
    vector<int> v(n);
    for(int i = 0; i < n; i++) cin >> v[i];
    vector<int> p(n - 1);
    for(int i = 1; i < n; i++) {
        p[i - 1] = v[i] - v[i - 1] - 1;
    }
    long long ans = 0;
    sort(p.begin(), p.end());
    for(int i = 0; i < n - k; i++) ans += p[i];
    cout << ans + n;
    return 0;
}

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