Submission #1187500

#	Time	Username	Problem	Language	Result	Execution time	Memory
1187500		M_W_13	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1476 KiB

stove

#include <bits/stdc++.h>

using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
typedef long long ll;
#define pb push_back
#define st first
#define nd second

int main() {
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n, k;
    cin >> n >> k;
    int T[n];
    rep(i, n) {
        cin >> T[i];
    }
    sort(T, T + n);
    vector<int> r;
    rep(i, n - 1) {
        r.pb(T[i + 1] - T[i] - 1);
    }
    sort(r.begin(), r.end());
    reverse(r.begin(), r.end());
    int ans = T[n - 1] + 1 - T[0];
    rep(i, k - 1) {
        ans -= r[i];
    }
    cout << ans << '\n';
	return 0;
}

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