Submission #375586

#	Time	Username	Problem	Language	Result	Execution time	Memory
375586		valerikk	Stove (JOI18_stove)	C++17	100 / 100	23 ms	2416 KiB

stove

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, k;
    cin >> n >> k;
    vector<int> t(n);
    for (int i = 0; i < n; ++i) cin >> t[i];
    ll need = t[n - 1] - t[0] + 1;
    vector<int> arr;
    for (int i = 1; i < n; ++i) arr.push_back(t[i] - t[i - 1] - 1);
    sort(arr.rbegin(), arr.rend());
    for (int i = 0; i < k - 1; ++i) need -= arr[i];
    cout << need << endl;
    return 0;
}

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