Submission #1032167

#	Time	Username	Problem	Language	Result	Execution time	Memory
1032167		amine_aroua	cmp (balkan11_cmp)	C++17	82 / 100	1357 ms	105428 KiB

cmp

#include "cmp.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> delta = {1, 4097, 5121, 5377, 5441, 5457};
int pow4(int n , int i )
{
    return (n >> (2 * i));
}
void remember(int n) {
    for(int i = 0 ; i < 6 ; i++)
    {
        bit_set(pow4(n , i)+delta[i]);
    }
}

int compare(int b) 
{
    int lo = 0 , hi = 7;
    while(lo + 1 < hi)
    {
        int mid = (lo + hi)/2;
        if(bit_get(delta[mid - 1] + pow4(b , mid - 1)))
            hi = mid;
        else
            lo = mid;
    }
    hi--;
    if(hi == 0)
    {
        return 0;
    }
    int nb = 4 * pow4(b , hi);
    int bit = pow4(b , hi - 1) - nb;
    for(int i = 0 ; i < 4 ; i++)
    {
        if(i == bit)
            continue;
        if(bit_get(delta[hi - 1] + nb + i))
        {
            if(i < bit)
            {
                return 1;
            }
            else
                return -1;
        }
    }
}

Compilation message (stderr)

cmp.cpp: In function 'int compare(int)':
cmp.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
   48 | }
      | ^

• Subtask 1: 82 / 100