Submission #1112837

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112837		Pwo	Stove (JOI18_stove)	C++17	50 / 100	224 ms	262144 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long

int32_t main() {
	ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	int n, k; cin >> n >> k;
	int a[n + 1]; for (int i = 1; i <= n; i++) cin >> a[i];
	a[0] = a[1];
	
	int dp[n + 1][k + 1]{}; dp[0][1] = 1e18;
	for (int i = 1; i <= n; i++) for (int j = 0; j <= k; j++) {
		if (i < j || j == 0) { dp[i][j] = 1e18; continue; }
		dp[i][j] = min(dp[i - 1][j] + a[i] - a[i - 1], dp[i - 1][j - 1] + 1);
	}
	
	cout << dp[n][k];
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 0 / 50