Submission #1293523

#	Time	Username	Problem	Language	Result	Execution time	Memory
1293523		fairkrash	Stove (JOI18_stove)	C++20	100 / 100	15 ms	2372 KiB

stove

#include <bits/stdc++.h>

#include <random>

using namespace std;
using ll = long long;
using ld = long double;

ll INF = 1e18 + 10;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    ll n, k;
    cin >> n >> k;
    k--;
    vector<ll> s(n);
    ll def = n;
    for (ll i = 0; i < n; i++) {
        cin >> s[i];
    }
    vector<ll> mx;
    for (ll i = 0; i < n - 1; i++) {
        mx.push_back(s[i + 1] - s[i] - 1);
    }
    sort(mx.rbegin(), mx.rend());
    for (ll i = k; i < mx.size(); i++) {
        def += mx[i];
    }
    cout << def;
}

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