제출 #1033715

#제출 시각아이디문제언어결과실행 시간메모리
1033715vjudge1Stove (JOI18_stove)C++17
100 / 100
18 ms1504 KiB
#include <bits/stdc++.h>
using namespace std;

int t[100008];

signed main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, k; cin >> n >> k; --k;
	int ans; vector<int> ITs;
	for (int i = 1; i <= n; ++i) cin >> t[i];
	ans = t[n] - t[1] + 1;
	for (int i = 1; i < n; ++i) ITs.push_back(t[i + 1] - t[i] - 1);
	sort(ITs.begin(), ITs.end());
	while (k && !ITs.empty()) ans -= ITs.back(), ITs.pop_back(), --k;
	cout << ans;
}
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