Submission #717771

#	Time	Username	Problem	Language	Result	Execution time	Memory
717771		Toxtaq	Stove (JOI18_stove)	C++17	100 / 100	19 ms	2256 KiB

stove

#include<bits/stdc++.h>
using namespace std;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, k;
    cin >> n >> k;
    vector<int>T(n);
    vector<int>diffs;
    cin >> T[0];
    for(int i = 1;i < n;++i){
        cin >> T[i];
        diffs.push_back(T[i] - T[i - 1] - 1);
    }
    sort(diffs.begin(), diffs.end());
    long long sum = T[n - 1] - T[0] + 1;
    for(int i = n - 2;i >= n - k;--i){
        sum -= diffs[i];
    }
    cout << sum;
}

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