#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include "hash_table.h"

bool twoSum(int A[], int N, int S) {
    HashTable ht = HashTableNew();
    for (int i = 0; i < N; i++) {
        HashTableInsert(ht, A[i], i);
    }
    for (int i = 0; i < N; i++) {
        int val_to_check = S - A[i];
        bool is_in = HashTableContains(ht, val_to_check);
        if (is_in) {
            int index_stored = HashTableGet(ht, val_to_check);
            if (index_stored != i) {
                return true;
            }
        }
    }
    return false;
}

int main(void) {
    int A[] = {12, 6, 3, 3, 7, 8};
    bool result = twoSum(A, 6, 13);
    printf("%d\n", result);
    printf("%d\n", twoSum(A, 6, 6));
}