oj.uz

Submission #990879

# Submission time Handle Problem Language Result Execution time Memory
990879 2024-05-31T17:14:36 Z ToniB Bigger segments (IZhO19_segments) C++17
0 / 100
 1 ms 444 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 505;
typedef long long ll;

int n, a[N], dp[N][N];
ll pre[N];

int main(){
	cin >> n;
	for (int i = 0; i < n; ++i) cin >> a[i];
	
	pre[0] = a[0];
	for (int i = 1; i < n; ++i) pre[i] = a[i] + pre[i - 1];
	
	for (int i = 0; i < n; ++i) {
		dp[0][i] = 1;
	}
	
	for (int i = 1; i < n; ++i) {
		for (int j = i; j < n; ++j) {
			for (int k = 0; k < i; ++k) {
				if (pre[j] - pre[i - 1] >= pre[i - 1] - (k ? pre[k - 1] : 0)) dp[i][j] = max(dp[i][j], dp[k][i - 1] + 1);
			}
		}
	}
	
	int ans = 0;
	for (int i = 0; i < n; ++i) ans = max(ans, dp[i][n - 1]);
	
	cout << ans << "\n";
	
	return 0;
}

Subtask #1
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -