Submission #287940

#	Time	Username	Problem	Language	Result	Execution time	Memory
287940		dvdg6566	Bigger segments (IZhO19_segments)	C++14	37 / 100	1573 ms	2420 KiB

segments

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pi;
typedef vector<ll> vi;
typedef vector<pi> vpi;
typedef long double ld;
#define pb emplace_back
#define mp make_pair
#define f first
#define s second
#define SZ(x) (ll)x.size()
#define ALL(x) x.begin(),x.end()
#define lb lower_bound
#define ub upper_bound
const ll MAXN=200001;
const ll MOD=1e9+7;
const ll INF = 3e9;
 
ll A[MAXN];
ll N;
ll dp[MAXN];
ll S[MAXN];
 
 
int main(){
	cin>>N;
	for(int i=1;i<=N;++i){
		cin>>A[i];
		A[i]+=A[i-1];
	}
	dp[0]=0;
	S[0]=0;
	for(int i=1;i<=N;++i){
		for(int j=0;j<i;++j){
			if(A[i] >= S[j]){
				if(dp[j]+1 >= dp[i]){
					dp[i]=dp[j]+1;
					S[i] = 2*A[i]-A[j];
				}
			}
		}
	}
	cout<<dp[N];
}

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