Submission #924817

#	Time	Username	Problem	Language	Result	Execution time	Memory
924817		SalihSahin	Stove (JOI18_stove)	C++17	100 / 100	15 ms	3292 KiB

stove

#include<bits/stdc++.h>
#define pb push_back
#define int long long
#define mp make_pair
using namespace std;
 
const int mod = 998244353;
const int inf = 1e16;
const int N = 55;

int32_t main(){
    cin.tie(0); cout.tie(0);
    ios_base::sync_with_stdio(false);
    int n, k;
    cin>>n>>k;
    vector<int> a(n);
    vector<int> diff;
    for(int i = 0; i < n; i++){
        cin>>a[i];
        if(i > 0){
            diff.pb(a[i] - a[i-1] - 1);
        }
    }
    int ans = a[n-1] - a[0] + 1;
    k--;
    sort(diff.rbegin(), diff.rend());
    for(int i = 0; i < min((int)diff.size(), k); i++){
        ans -= diff[i];
    }
    cout<<ans<<endl;
    return 0;
}

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