Submission #1002215

#	Time	Username	Problem	Language	Result	Execution time	Memory
1002215		zh_h	Stove (JOI18_stove)	C++17	100 / 100	16 ms	2592 KiB

stove

#include <bits/stdc++.h>
#define lint long long
#define pb push_back
#define mp make_pair
using namespace std;



int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, k;
    cin >> n >> k;
    vector<int> v;
    for(int i = 0; i < n; i ++){
        int temp;
        cin >> temp;
        v.pb(temp);
    }

    vector<int> vb;
    for(int i = 1; i < n; i ++){
        vb.pb(v[i]-v[i-1]-1);
    }

    sort(vb.begin(), vb.end());

    // for(auto i : vb){cout << i << " ";} cout << endl;

    int time = n;
    
    if(k >= n){cout << n;}
    else{
        for(int i = 0; i < n-k; i ++){
            time+=vb[i];
        }
        cout << time;
    }
    return 0;
}

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