Submission #1368833

#	Time	Username	Problem	Language	Result	Execution time	Memory
1368833		norrawichzzz	Stove (JOI18_stove)	C++20	100 / 100	15 ms	1480 KiB

stove

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

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int n,k;
    cin>> n>> k;

    vector<int> a(n);
    for (int i=0; i<n; i++) cin>> a[i];
    int ans = a[n-1] +1 - a[0];

    vector<int> val;
    for (int i=1; i<n; i++) val.push_back(a[i]-a[i-1]-1);

    sort(val.rbegin(), val.rend());
    for (int i=0; i<min((int)val.size(),k-1); i++) ans -= val[i];
    cout<< ans;
} 

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