Submission #1301094

#	Time	Username	Problem	Language	Result	Execution time	Memory
1301094		filip1111	Stove (JOI18_stove)	C++20	100 / 100	40 ms	1448 KiB

stove

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

int main(){
    int n, k;
    cin >> n >> k;
    vector<int>V(n+9);
    V[0] = -1e9;
    for(int i = 1; i <= n; i++){
        cin >> V[i];
    }
    vector<int>S;
    for(int i = 1; i <= n; i++){
        S.push_back((V[i]-1) - V[i - 1]);
    }
    ll s = 0;
    for(auto x : S)s += x + 1;
    sort(S.begin(),S.end(), greater<int>());
    // k = n - k + 1;
    // k--;
    for(int i = 0; i < k; i++)  
        s -= S[i];
    cout << s << '\n';
    
}

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