Submission #793156

#	Time	Username	Problem	Language	Result	Execution time	Memory
793156		phoenix	Stove (JOI18_stove)	C++17	100 / 100	15 ms	3216 KiB

stove

#include<bits/stdc++.h>

using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int n, k;
    cin >> n >> k;
    ll t[n];
    for(int i = 0; i < n; i++) 
        cin >> t[i];
    vector<ll> d;
    for(int i = 0; i < n - 1; i++) 
        d.push_back(t[i + 1] - t[i] - 1);
    sort(d.begin(), d.end());
    k = n - k;
    ll s = n;
    for(int i = 0; i < k; i++) 
        s += d[i];
    cout << s;
}

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