Random array intersection

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

bool exists_in(int V[], size_t v_length, int to_find) {
  for (size_t i = 0; i < v_length; i++) {
    if (V[i] == to_find) {
      return true;
    }
  }
  return false;
}

#define N 10
int main(void) {

  srand(time(NULL));
  int A[N] = {0}, B[N] = {0}, intersection[N + N] = {0};
  for (size_t i = 0; i < N; i++) {
    A[i] = rand() % 30 + 1;
    B[i] = rand() % 30 + 1;
  }

  // Printing generated array A
  printf("A: [");
  for (size_t i = 0; i < N; i++) {
    printf("%d ", A[i]);
  }
  printf("]\n");

  // Printing generated array B
  printf("B: [ ");
  for (size_t i = 0; i < N; i++) {
    printf("%d ", B[i]);
  }
  printf("]\n");

  // A intesection B
  int intersections_i = 0;
  for (size_t i = 0; i < N; i++) {
    if (exists_in(B, N, A[i]) &&
        !exists_in(intersection, intersections_i, A[i])) {
      intersection[intersections_i++] = A[i];
    }
  }

  // Printing insersection
  printf("Intersection: [ ");
  for (size_t i = 0; i < intersections_i; i++) {
    printf("%d ", intersection[i]);
  }
  printf("]\n");
  return 0;
}