59. Scan Memory for Three Consecutive Increasing Values

#include <stdio.h>

int find_pattern(int *mem, int n) {
int * p1 = mem;
int * p2 = mem+1;
int * p3 = mem+2;
for(int i = 0 ; i <=n-3 ; i++){
    if(*p1+1 == *p2 && *p2+1 == *p3){
        return i;
    }
    p1++;
    p2++;
    p3++;
}
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;
}