print the minimum length of the subarray you can choose to make A and B same after performing the operation in c language

Question

`#include <stdio.h>

int main(){ int num; scanf("%d", &num); // Reading input from STDIN printf("Input number is %d.\n", num); // Writing output to STDOUT } `

print the minimum length of the subarray you can choose to make A and B same after performing the operation.