#include "./twoSum.c"
#include <stdio.h>
#include <string.h>

#define USAGE "Usage: twoSum -t <target> <e0> <e1> [...<es>]\n"

int main(int argc, char *argv[]) {
    if (argc < 5) {
        fprintf(stderr, USAGE);
        return 1;
    }
    if (strcmp("-t", argv[1]) != 0) {
        fprintf(stderr, USAGE);
        return 1;
    }
    int target = atoi(argv[2]);
    int *nums = malloc(sizeof(int) * (argc - 3));
    
    for (int i = 3; i < argc; i++) {
        nums[i - 3] = atoi(argv[i]);
    }

    int returnSize = 0;
    int *result = twoSum(nums, argc - 3, target, &returnSize);

    if (!returnSize) {
        fprintf(stderr, "Did not find two indices.");
        return 1;
    }

    for (int i = 0; i < returnSize; i++) {
        printf("%i ", result[i]);
    }
    printf("\n");

    free(result);
    free(nums);

    return 0;
}