Submission #996881

#	Time	Username	Problem	Language	Result	Execution time	Memory
996881		ag_1204	Stove (JOI18_stove)	C++17	100 / 100	20 ms	2976 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define ll long long int

int main(){
    ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    ll tt=1;
    while(tt--) {
        ll n,k; cin >> n >> k;
        ll t[n],s[n-1];
        for (ll i=0;i<n;i++) {
            cin >> t[i];
            if (i>0) {
                s[i-1]=t[i]-t[i-1]-1;
            }
        }
        sort(s,s+n-1);
        ll sum=n;
        for (ll i=0;i<n-k;i++) {
            sum+=s[i];
        }
        cout<<sum<<endl;
    }
	return 0;
}

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