Submission #1015297

# Submission time Handle Problem Language Result Execution time Memory
1015297 2024-07-06T08:29:40 Z vjudge1 Gap (APIO16_gap) C++17
0 / 100
42 ms 1240 KB
#include "gap.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long

bool adj(ll x,ll y)
{
	long long a, b;
	MinMax(x+1,y-1,&a,&b);
	return a==-1;
}

long long findGap(signed t,signed n)
{
	if (t==2 && n>60)
	{
		ll mn1,mx1;
		MinMax(0,(ll)1e18,&mn1,&mx1);
		ll st,mn,mx,ans=0;
		for (int i=0;i<=60;i++)
		{
			MinMax(mn1+1,mn1+(1LL<<i),&mn,&mx);
			if (mn!=-1)
			{
				ans=mn-mn1;
				st=mx;
				break;
			}
		}
		while (st<mx1)
		{
			MinMax(st+1,st+ans,&mn,&mx);
			if (mn!=-1)
				st=mx;
			else
			{
				ll val=ans*2;
				while (1)
				{
					MinMax(st+1,st+val,&mn,&mx);
					if (mn!=-1)
					{
						ans=mn-st;
						st=mx;
						break;
					}
					val*=2;
				}
			}
		}
		return ans;
	}
	else
	{
		long long lim1=0,lim2=1e18;
		long long mn,mx,mn1,mx1;
		MinMax(lim1,lim2,&mn1,&mx1);
		if (n==2)
			return mx1-mn1;
		MinMax(mn1+1,mx1-1,&mn,&mx);
		ll ans = max(mn-mn1,mx1-mx);
		while (mn+ans*2<=mx)
		{
			MinMax(mn+ans,mx-ans,&mn1,&mx1);
			if (mn1==-1)
				break;
			if (adj(mn,mn1))
				ans=mn1-mn;
			if (adj(mx1,mx))
				ans=max(ans,mx-mx1);
			mn=mn1,mx=mx1;
		}
		if (mn+ans<mx)
		{
			MinMax(mn+ans+1,mx,&mn1,&mx1);
			if (mn1!=-1)
				ans=mn1-mn;
			else
			{
				MinMax(mn,mx-ans-1,&mn1,&mx1);
				if (mx1!=-1)
					ans=mx-mx1;
			}
		}
		
		return ans;
	}
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:45:10: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
   45 |       ans=mn-st;
      |       ~~~^~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Incorrect 0 ms 344 KB Output isn't correct
4 Incorrect 0 ms 344 KB Output isn't correct
5 Incorrect 0 ms 344 KB Output isn't correct
6 Incorrect 0 ms 344 KB Output isn't correct
7 Incorrect 0 ms 344 KB Output isn't correct
8 Incorrect 0 ms 344 KB Output isn't correct
9 Incorrect 0 ms 344 KB Output isn't correct
10 Runtime error 0 ms 344 KB Execution failed because the return code was nonzero
11 Correct 0 ms 344 KB Output is correct
12 Incorrect 1 ms 344 KB Output isn't correct
13 Incorrect 1 ms 344 KB Output isn't correct
14 Incorrect 1 ms 344 KB Output isn't correct
15 Incorrect 1 ms 344 KB Output isn't correct
16 Incorrect 5 ms 616 KB Output isn't correct
17 Incorrect 5 ms 600 KB Output isn't correct
18 Incorrect 7 ms 600 KB Output isn't correct
19 Incorrect 5 ms 600 KB Output isn't correct
20 Runtime error 2 ms 600 KB Execution failed because the return code was nonzero
21 Incorrect 19 ms 1236 KB Output isn't correct
22 Incorrect 18 ms 1112 KB Output isn't correct
23 Incorrect 25 ms 1240 KB Output isn't correct
24 Incorrect 19 ms 1112 KB Output isn't correct
25 Incorrect 42 ms 1112 KB Output isn't correct
26 Incorrect 19 ms 1112 KB Output isn't correct
27 Incorrect 18 ms 1112 KB Output isn't correct
28 Incorrect 19 ms 1112 KB Output isn't correct
29 Incorrect 20 ms 1112 KB Output isn't correct
30 Runtime error 7 ms 1112 KB Execution failed because the return code was nonzero
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Incorrect 0 ms 344 KB Output isn't correct
4 Incorrect 0 ms 344 KB Output isn't correct
5 Partially correct 0 ms 344 KB Partially correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Partially correct 1 ms 344 KB Partially correct
16 Correct 7 ms 436 KB Output is correct
17 Correct 4 ms 628 KB Output is correct
18 Correct 5 ms 600 KB Output is correct
19 Correct 4 ms 600 KB Output is correct
20 Correct 5 ms 600 KB Output is correct
21 Correct 16 ms 1112 KB Output is correct
22 Correct 24 ms 1116 KB Output is correct
23 Correct 16 ms 1112 KB Output is correct
24 Correct 16 ms 1232 KB Output is correct
25 Partially correct 32 ms 1112 KB Partially correct
26 Correct 16 ms 1112 KB Output is correct
27 Correct 17 ms 1064 KB Output is correct
28 Correct 24 ms 1016 KB Output is correct
29 Correct 17 ms 1112 KB Output is correct
30 Correct 15 ms 1152 KB Output is correct
31 Partially correct 0 ms 344 KB Partially correct
32 Correct 0 ms 344 KB Output is correct