제출 #336385

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
336385		amunduzbaev	Bigger segments (IZhO19_segments)	C++14	37 / 100	10 ms	492 KiB

segments

#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ub upper_bound
#define lb lower_bound
#define ll long long 
#define ld long double 
#define pii pair<int, int>
#define pll pair<ll, ll>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(),x.rend()
#define prc(n) fixed << setprecision(n)
#define fastios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pi acos(-1);
const int inf = 1e9+7;
const int N = 3e3+5;
ll n, m, a[N], pref[N], dp[N], ans[N];

void solve(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i];
		pref[i] = a[i];
		if(i) pref[i] += pref[i-1];
		ans[i] = 1;
		dp[i] = pref[i];
	}
//	dp[0] = a[0];
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(pref[j] - pref[i] >= dp[i] && ans[i]+1 >= ans[j]){
				dp[j] = pref[j] - pref[i];
				ans[j] = ans[i]+1;
			}
		}
	//	for(int j=0;j<n;j++) cout<<dp[j]<<" ";
	//	cout<<endl;
	}
	cout<<ans[n-1]<<"\n";
	return;
}
 
signed main(){
	fastios
	int t = 1;
	//cin>>t;
	while(t--) solve();
	return 0;
}
 
 

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