XOR

#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv){
    if (argc != 3){
        fprintf(stderr, "Invalid arguments!\n");
        return EXIT_FAILURE;
    }
    int a = atoi(argv[1]);
    int b = atoi(argv[2]);
    /*if ((!a && b) || (a && !b)){
        printf("1\n");
    } else {
        printf("0\n");
    }*/
    printf("%d\n", (!a && b) || (a && !b));
    return EXIT_SUCCESS;
}