제출 #1308693

#제출 시각아이디문제언어결과실행 시간메모리
1308693haiduong2110Stove (JOI18_stove)C++20
100 / 100
18 ms2376 KiB
#include <bits/stdc++.h> using namespace std; #define endl '\n' using ll = long long; ll n, k; vector<ll> a; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cin >> n >> k; a.resize(n); for(ll i = 0; i < n; i++) cin >> a[i]; ll res = a[n - 1] + 1 - a[0]; vector<ll> diff; for(ll i = 0; i < n - 1; i++) { diff.push_back(a[i + 1] - a[i] - 1); } sort(diff.rbegin(), diff.rend()); for(ll i = 0; i < k - 1; i++) res -= diff[i]; cout << res; }
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