Submission #199646

#	Time	Username	Problem	Language	Result	Execution time	Memory
199646		mohammedehab2002	Password (RMI18_password)	C++14	80 / 100	599 ms	704 KiB

password

#include <bits/stdc++.h>
using namespace std;
int f[26];
int query(string s);
string guess(int n,int c)
{
	for (char a='a';a<'a'+c;a++)
	f[a-'a']=query(string(n,a));
	string ans="";
	for (char a='a';a<'a'+c;a++)
	{
		string tmp=ans;
		for (int i=0;i<f[a-'a'];i++)
		{
			int st=0,en=ans.size();
			while (st!=en)
			{
				int mid=(st+en+1)/2;
				if (query(ans.substr(0,mid)+string(i+1,a))>mid+i)
				st=mid;
				else
				en=mid-1;
			}
			tmp.insert(tmp.begin()+st,a);
		}
		ans=tmp;
	}
	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 30 / 30
• Subtask 5: 0 / 20