Submission #487730

#	Time	Username	Problem	Language	Result	Execution time	Memory
487730		stefantaga	Stove (JOI18_stove)	C++14	100 / 100	17 ms	2948 KiB

stove

#include <bits/stdc++.h>
#define int long long
using namespace std;
 
const int N = 2e5 + 42, INF = 1e18;
 
int a[N], b[N];
 
signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
 
    int n, k;
    cin >> n >> k;
    for(int i = 0; i < n; i++)
        cin >> a[i];
    for(int i = 0; i < n-1; i++)
        b[i] = a[i+1] - a[i] - 1;
    sort(b, b + n - 1);
    int sum = n;
    for(int i = 0; i < n-k; i++)
        sum += b[i];
    cout << sum;
}

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