Scan Memory for Three Consecutive Increasing Values

Code

#include <stdio.h>

int find_pattern(int *mem, int n) {
    // Write your pointer-based logic here
    for(int i=0;(i+2)<n;i++){
     if ((*(mem+i+1)==(*(mem+i)+1) )&&(*(mem+i+2)==(*(mem+i)+2))){
        return i;
     }
    }
    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

just check the value at mem[i]==(mem[i+1]+1) && (mem[i+2])==mem[i]+2 , means the next value should exceed by 1 and next to next element should exceed by 2.