#include <stdio.h>
#include <stdint.h>
uint8_t is_circular_match(uint16_t reg, uint16_t target) {
uint16_t left_rotation = 0x0000;
uint16_t right_rotation = 0x0000;
for(uint8_t i=0; i<16; i++)
{
// get the ith right rotation
right_rotation = (reg>>i) | (reg<<(16-i));
// get the ith left rotation
left_rotation = (reg<<i) | (reg>>(16-i));
// if any ith rotation matched the target number
if(right_rotation == target || left_rotation==target)
{
return 1;
}
}
// else
return 0;
}
int main() {
uint16_t reg, target;
scanf("%hu %hu", ®, &target);
printf("%hhu", is_circular_match(reg, target));
return 0;
}
Input
45056 11
Expected Output
1