// Flips bits specified in positions array from a value

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

uint32_t flip_bits(int *positions, int length, uint32_t value);

int main(int argc, char *argv[]) {
    if (argc < 2) {
        fprintf(stderr, "Usage: %s <value> [positions]\n", argv[0]);
        return 1;
    }

    int length = argc - 2;
    int *positions = malloc(length * sizeof(int));

    for (int i = 0; i < length; i++) {
        positions[i] = atoi(argv[i + 2]);
    }

    uint32_t value = atoi(argv[1]);
    printf("%u\n", flip_bits(positions, length, value));

    free(positions);
    return 0;
}

// flips bits in value at positions specified in positions array
uint32_t flip_bits(int *positions, int length, uint32_t value) {

    // PUT YOUR CODE HERE

    return 42;
}