Submission #944273

#	Time	Username	Problem	Language	Result	Execution time	Memory
944273		dugersuren	Stove (JOI18_stove)	C++17	100 / 100	15 ms	2300 KiB

stove

# include <bits/stdc++.h>
#define ll long long
#define MAX 100003
using namespace std;
int n, k, t[MAX]; 
int main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin>>n>>k;
    vector <int> e;
    for (int i = 1; i <= n; ++i) {
        cin >> t[i];
        if (i > 1) e.push_back(t[i] - t[i - 1] - 1);
    }
    sort(e.rbegin(), e.rend());
    int ans = t[n] + 1 - t[1];
    
    	
    for (int i = 0; i < min(((int)e.size()), k - 1); ++i) ans -= e[i];
    cout << ans <<'\n';
    return 0;
}

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