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 chain = 0;
    for (int i = 0; i < n-1; i++) {
        
        int val_1 = *(mem+i);
        int val_2 = *(mem+i+1);

        if ((val_1 + 1) == val_2) {
            chain++;
        } else {
            chain = 0;
        }

        if (2 == chain) 
            return i-1;
    }

    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