Submission #939434

#	Time	Username	Problem	Language	Result	Execution time	Memory
939434		ifateen	Stove (JOI18_stove)	C++14	100 / 100	43 ms	2284 KiB

stove

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e5 + 5;
int arr[MAXN];
vector<int> diff;
int main() {
    int n, k;
    cin >> n >> k;
    for (int i = 1; i <= n; i++) cin >> arr[i], diff.push_back(arr[i] - (arr[i - 1] + 1));
    diff.erase(diff.begin());
    sort(rbegin(diff), rend(diff));
    --k;
    int ans = arr[n] + 1 - arr[1];
    for (int i = 0; i < k; i++) ans -= diff[i];
    cout << ans;
}

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