Scan Memory for Three Consecutive Increasing Values

Code

#include <stdio.h>


 int find_pattern(int *mem, int n) {
    int count = 0;

    for (int i = 0; i < n - 1; i++) {
        if (*(mem + i) + 1 == *(mem + i + 1)) {
            count++;
            if (count == 2) {      // 2 increments = 3 consecutive numbers
                return i - 1;      // start index of the 3-sequence
            }
        } else {
            count = 0;
        }
    }
    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