Submission #141355

#	Time	Username	Problem	Language	Result	Execution time	Memory
141355		DrumpfTheGodEmperor	Stove (JOI18_stove)	C++14	100 / 100	29 ms	2168 KiB

stove

#include <bits/stdc++.h>
#define int long long
#define bp __builtin_popcountll
#define pb push_back
#define in(s) freopen(s, "r", stdin);
#define out(s) freopen(s, "w", stdout);
#define inout(s, end1, end2) freopen((string(s) + "." + end1).c_str(), "r", stdin),\
		freopen((string(s) + "." + end2).c_str(), "w", stdout);
#define fi first
#define se second
#define bw(i, r, l) for (int i = r - 1; i >= l; i--)
#define fw(i, l, r) for (int i = l; i < r; i++)
#define fa(i, x) for (auto i: x)
using namespace std;
const int mod = 1e9 + 7, inf = 1061109567;
const long long infll = 4557430888798830399;
const int N = 1e5 + 5;
int n, k, t[N];
signed main() {
	#ifdef BLU
	in("blu.inp");
	#endif
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> n >> k;
	fw (i, 0, n) cin >> t[i];
	fw (i, 0, n - 1) t[i] = t[i + 1] - t[i] - 1;
	int ans = n;
	sort(t, t + n - 1);
	fw (i, 0, n - k) ans += t[i];
	cout << ans;
	return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50