Submission #746297

#	Time	Username	Problem	Language	Result	Execution time	Memory
746297		Sami_Massah	Stove (JOI18_stove)	C++17	100 / 100	24 ms	3212 KiB

stove

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


const long long maxn = 2e5 + 12, mod = 998244353, inf = 1e9 + 12 ;
long long n, k, a[maxn];
vector <long long> pos;
int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
    cin >> n >> k;
    for(int i = 0; i < n; i++)
        cin >> a[i];
    for(int i = 0; i < n - 1; i++)
        pos.push_back(a[i + 1] - (a[i] + 1));
    sort(pos.begin(), pos.end(), greater<long long>());
    long long sum = 0;
    k -= 1;
    for(int i = 0; i < k; i++){
        sum += pos[i];

        }
    cout << a[n - 1] + 1 - a[0] - sum << endl;


}

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