제출 #850979

#제출 시각아이디문제언어결과실행 시간메모리
850979NamPEStove (JOI18_stove)C++17
100 / 100
16 ms3232 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ios::sync_with_stdio(0); cout.tie(0); cin.tie(0); ll n, k; cin >> n >> k; vector<ll> a(n); for (ll& i : a) { cin >> i; } ll ans = a.back() - a[0] + 1; vector<ll> v; for(ll i = 1; i < n; i++) { v.push_back(a[i] - a[i - 1] - 1); } sort(v.begin(), v.end(), greater{}); for(ll i = 0; i <= k - 2; i++) { ans -= v[i]; } cout << ans; }
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