Submission #1033694

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033694		vjudge1	Stove (JOI18_stove)	C++17	0 / 100	1 ms	348 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define pb push_back
#define pf push_front
#define fi first
#define se second
const ll mod = 1e9 + 7;
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll n, k;
    cin >> n >> k;
    k--;
    vector<ll> v;
    ll x;
    cin >> x;
    ll last = 0, fifi = x;
    for (ll i = 2; i <= n; i++) {
        ll xx;
        cin >> xx;
        v.pb(xx - x - 1);
        x = last = xx;
    }
    sort(v.begin(), v.end());
    ll ans = last - fifi + 1;
    while (k--) {
        ans -= max(0LL, v.back());
        v.pop_back();
    }
    cout << ans;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50