제출 #1173022

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1173022		ibrahim001	Bigger segments (IZhO19_segments)	C++20	0 / 100	0 ms	324 KiB

segments

#include "bits/stdc++.h"
#include <chrono>
#include <thread>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define intt long long
#define int intt
#define pb push_back
#define endl '\n'
#define F first
#define S second
#define pii pair<int,int>
#define pll pair<intt,intt>
#define ld long double
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define all(x) x.begin(), x.end()
using namespace std;
// mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int sz = 2e6+5;
const int sz1 = 505;
const int mod = 998244353;
const int inf = 2e9+7;
const intt infl = 1e18;
const ld eps = 1e-9;
int a[sz];
int dp[sz1][sz1];
int pref[sz];
intt i,j;
void solve(){
    int n;
    cin >> n;
    for ( i = 1; i <= n; i++ ){
        cin >> a[i];
        pref[i] = pref[i-1]+a[i];
    }
    for ( int r = 1; r <= n; r++ ){
        dp[0][r] = 1;
        for ( int l = 1; l < r; l++ ){
            for ( int i = 0; i < l; i++ ){
                if ( pref[r]-pref[l] >= pref[l]-pref[i] ){
                    dp[l][r] = max(dp[l][r], dp[i][l]+1);
                }
            }
        }
    }
    int res = 1;
    for ( i = 1; i <= n; i++ )  res = max(res, dp[i][n]);
    cout << res << endl;
}
signed main(){
    fastio;
    int t = 1;
    // cin >> t;
    for ( int cs = 1; cs <= t; cs++ ) {
        // cout << "Case " << cs << ": ";
        solve();
    }
    // while ( cin >> n and n ){
    //     cin >> m;
    //     solve();
    // }
}
// 4 15 8 23 42 16

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27