제출 #792416

#제출 시각아이디문제언어결과실행 시간메모리
792416vjudge1Stove (JOI18_stove)C++14
100 / 100
18 ms2260 KiB
#include<bits/stdc++.h> #define ll long long #define fi first #define se second using namespace std ; const ll N = 1e5 ; ll n, k, ans, t[N + 1] ; vector<ll> v ; signed main() { ios_base::sync_with_stdio( 0 ) ; cin.tie( 0 ) ; cout.tie( 0 ) ; cin >> n >> k ; k-- ; for(ll i = 1 ; i <= n ; i++) cin >> t[i] ; ans = t[n] + 1 - t[1] ; for(ll i = 1 ; i < n ; i++) v.push_back(t[i + 1] - t[i] - 1) ; sort(v.begin(), v.end()) ; while(k--) { ans -= v.back() ; v.pop_back() ; } cout << ans ; return 0 ; }
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