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Submission #340893

# Submission time Handle Problem Language Result Execution time Memory
340893 2020-12-28T13:12:47 Z Dilshod_Imomov Bigger segments (IZhO19_segments) C++17
0 / 100
 1 ms 492 KB 
# include <bits/stdc++.h>
# define speed ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
# define int long long
# define fi first
# define se second
 
using namespace std;
 
const int N = 5e3 + 7;
const int mod = 1e9 + 7;

int a[N], sum[N], dp[N][N];

int32_t main() {
    speed; 
    int n;
    cin >> n;
    for ( int i = 1; i <= n; i++ ) {
        cin >> a[i];
        sum[i] = sum[i - 1] + a[i];
    }
    for ( int i = 1; i <= n; i++ ) {
        for ( int j = i; j > 0; j-- ) {
            if ( j == 1 ) {
                dp[i][j] = 1;
            }
            for ( int k = j - 1; k > 0; k-- ) {
                int sm = sum[j - 1] - sum[k - 1];
                if ( sum[i] - sum[j - 1] >= sm ) {
                    dp[i][j] = max( dp[i][j], dp[j - 1][k] + 1 );
                }
            }
            // cout << i << ' ' << j << ' ' << dp[i][j] << endl;
        }
    }
    int mx = 0;
    for ( int i = 1; i <= n; i++ ) {
        mx = max( mx, dp[n][i] );
    }
    cout << mx;
}

Subtask #1
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -