#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[]) {

    // If no arguments (only program name)
    if (argc == 1) {
        printf("There are no arguments\n");
        return 0;
    }

    int max_count = 0;
    char *most_common = NULL;

    // Compare each argument with others
    for (int i = 1; i < argc; i++) {
        int count = 0;

        for (int j = 1; j < argc; j++) {
            if (strcmp(argv[i], argv[j]) == 0) {
                count++;
            }
        }

        if (count > max_count) {
            max_count = count;
            most_common = argv[i];
        }
    }

    printf("Most common argument is %s and it occurs %d times\n",
        most_common, max_count);

    return 0;
}