Submission #1124817

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124817		wzhci11	Stove (JOI18_stove)	C++17	100 / 100	16 ms	1096 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    ll n, k, a, b, ans = 0;
    cin >> n >> k;
    vector<ll> t(n-1);
    cin >> a;
    for (ll i = 0; i < n-1; ++i) {
        cin >> b;
        t[i] = b - a - 1;
        a = b;
    }
    sort(t.begin(), t.end());
    for (ll i = 0; i < n - k; ++i) {
        ans += t[i];
    }
    cout << ans + n;
}

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