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;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;
}