Detect Alternating Pattern

Code

#include <stdio.h>

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here

    if(*mem == *(mem+2))        // checking the mem[0] value and
        return 1;               // mem[2] value both are same return 1;

    return 0;                   // not equal return 0

}

int main() {
    int n, k, arr[100];
    scanf("%d %d", &n, &k);

    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    int res = is_alternating_pattern(arr, k);
    printf("%d", res);

    return 0;
}

Solving Approach

int is_alternating_pattern(int *mem, int k) {
    // Write your pointer logic here
    if(*mem == *(mem+2))        // checking the mem[0] value and
        return 1;               // mem[2] value both are same return 1;
        
    return 0;                   // not equal return 0
}