Submission #493866

#	Time	Username	Problem	Language	Result	Execution time	Memory
493866		Khizri	Bigger segments (IZhO19_segments)	C++17	13 / 100	27 ms	332 KiB

segments

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=2e5+5;
int t=1,n,arr[mxn];
void solve(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>arr[i];
	}
	int ans=0;
	for(int mask=0;mask<(1<<n);mask++){
		int a=0,b=0,left=-1,k=0;
		for(int i=0;i<n;i++){
			int q;
			if((1<<i)&mask){
				q=1;
			}
			else{
				q=0;
			}
			if(q!=left){
				left=q;
				if(b<a){
					goto loop;
				}
				a=b;
				b=0;
				b+=arr[i];
				k++;
			}
			else{
				b+=arr[i];
			}
		}
		if(b>=a){
			ans=max(ans,k);
		}
		loop:;
	}
	cout<<ans<<endl;
}
int main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

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