제출 #725735

#제출 시각아이디문제언어결과실행 시간메모리
725735hoainiemStove (JOI18_stove)C++14
100 / 100
26 ms2300 KiB
#include <bits/stdc++.h> #define fi first #define se second #define lc id<<1 #define rc id<<1^1 #define nmax 100008 using namespace std; typedef pair<int, int> pii; int n, k, ans, a[nmax]; vector<int>vt; int main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // freopen("file.inp", "r", stdin); // freopen("file.out", "w", stdout); cin >> n >> k; for (int i = 1; i <= n; i++) cin >> a[i]; ans = a[n] - a[1] + 1; for (int i = 2; i <= n; i++) vt.push_back(a[i] - a[i - 1] - 1); sort(vt.begin(), vt.end()); while (--k){ ans -= vt.back(); vt.pop_back(); } cout << ans; return 0; }
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