Detect Circular Pattern Match

Code

#include <stdio.h>
#include <stdint.h>

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    uint16_t temp=0;
    uint16_t ans= reg;
    for(int i=0;i<16;i++){
        temp = ((reg<<i)&0x8000)>>15;
        ans= (ans<<1)|temp;

        if(ans==target){
            return 1;
        }
    }

    for(int i=0;i<16;i++){
        temp = ((reg>>i)&0x0001)<<15;
        ans= (ans>>1)|temp;

        if(ans==target){
            return 1;
        }
    }
    return 0;
}

int main() {
    uint16_t reg, target;
    scanf("%hu %hu", &reg, &target);
    printf("%hhu", is_circular_match(reg, target));
    return 0;
}

Solving Approach

 

 

 

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Input

45056 11

Expected Output

1