Submission #1049782

#	Time	Username	Problem	Language	Result	Execution time	Memory
1049782		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	12 ms	2012 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pll pair<ll, ll>
#define fi first
#define se second
#define pb push_back
#define speed ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int main() {
    speed;
    int n, k;
    cin >> n >> k;
    vector<int> t(n);
    for(int i = 0; i < n; i++) cin >> t[i];
    sort(begin(t), end(t));
    vector<ll> v; int l = n;
    ll ans = 1ll * n;
    for(int i = 0; i < n - 1; i++) v.pb(1ll * (t[i+1] - t[i] - 1));
    sort(begin(v), end(v));
    for(ll i : v) {
        if(l > k) {
            ans += 1ll * i;
            l--;
        }
    }
    cout << ans;
}

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