Submission #1015213

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1015213	2024-07-06T07:35:19 Z	vjudge1	Gap (APIO16_gap)	C++17	42.6461 / 100	33 ms	2004 KB

gap

#include "gap.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long

long long findGap(signed t,signed n)
{
	if (t==2)
	{
		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 a[n],i=0,j=n-1,lim1=0,lim2=1e18;
		long long mn,mx;
		while (i<=j)
		{
			MinMax(lim1,lim2,&mn,&mx);
			a[i++]=mn;
			a[j--]=mx;
			lim1=mn+1;
			lim2=mx-1;
		}
		long long ans=0;
		for (int i=0;i<n-1;i++)
			ans=max(ans,a[i+1]-a[i]);
		
		return ans;
	}
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:38:10: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
   38 |       ans=mn-st;
      |       ~~~^~~~~~

Subtask #1

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	1 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	0 ms	344 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	8 ms	844 KB	Output is correct
17	Correct	6 ms	596 KB	Output is correct
18	Correct	6 ms	600 KB	Output is correct
19	Correct	7 ms	840 KB	Output is correct
20	Correct	5 ms	600 KB	Output is correct
21	Correct	29 ms	1880 KB	Output is correct
22	Correct	23 ms	1880 KB	Output is correct
23	Correct	23 ms	1880 KB	Output is correct
24	Correct	28 ms	1880 KB	Output is correct
25	Correct	22 ms	1880 KB	Output is correct
26	Correct	27 ms	1880 KB	Output is correct
27	Correct	21 ms	2004 KB	Output is correct
28	Correct	22 ms	1880 KB	Output is correct
29	Correct	21 ms	1916 KB	Output is correct
30	Correct	20 ms	1880 KB	Output is correct
31	Correct	0 ms	344 KB	Output is correct
32	Correct	0 ms	344 KB	Output is correct

Subtask #2

12.6460549623 / 70.0

#	Verdict	Execution time	Memory	Grader output
1	Partially correct	0 ms	344 KB	Partially correct
2	Partially correct	0 ms	344 KB	Partially correct
3	Partially correct	0 ms	344 KB	Partially correct
4	Partially correct	0 ms	344 KB	Partially 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	1 ms	344 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 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	0 ms	432 KB	Partially correct
16	Correct	4 ms	600 KB	Output is correct
17	Correct	4 ms	600 KB	Output is correct
18	Correct	4 ms	600 KB	Output is correct
19	Correct	4 ms	600 KB	Output is correct
20	Correct	3 ms	600 KB	Output is correct
21	Correct	13 ms	1204 KB	Output is correct
22	Correct	16 ms	1112 KB	Output is correct
23	Correct	18 ms	1112 KB	Output is correct
24	Correct	16 ms	1104 KB	Output is correct
25	Partially correct	33 ms	1108 KB	Partially correct
26	Correct	17 ms	1112 KB	Output is correct
27	Correct	26 ms	1112 KB	Output is correct
28	Correct	30 ms	992 KB	Output is correct
29	Correct	18 ms	1024 KB	Output is correct
30	Correct	21 ms	1112 KB	Output is correct
31	Partially correct	0 ms	344 KB	Partially correct
32	Correct	0 ms	344 KB	Output is correct