Scan Memory for Three Consecutive Increasing Values

Code

#include <stdio.h>

int find_pattern(int *mem, int n) {
    // Write your pointer-based logic here
    int *end = mem+n-2;
    int *start = mem;
    while(mem < end){

        if((((*mem)+1) == *(mem+1)) && (*(mem+1)+1 == *(mem+2))){
            return (mem  - start);
        }

        mem++;
    }
    return -1;
}

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

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

    int res = find_pattern(arr, n);
    printf("%d", res);

    return 0;
}

Solving Approach