Submission #1313173

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313173		boclobanchat	Bigger segments (IZhO19_segments)	C++20	0 / 100	0 ms	332 KiB

segments

#include<bits/stdc++.h>
using namespace std;
const int MAXN=5e5+5;
long long pref[MAXN];
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>pref[i];
		pref[i]+=pref[i-1];
	}
	int ans=1,l=1,r=1;
	while(true)
	{
		if(pref[n]-pref[r]<pref[r]-pref[l-1]) break;
		int pos=r+1;
		while(pref[pos]-pref[r]<pref[r]-pref[l-1]) pos++;
		while(pref[pos]-pref[r]>=pref[r]-pref[l-1]) r++;
		l=r,r=pos,ans++;
	}
	cout<<ans;
}

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