uva100.c

uva100.c

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

int max(const int a, const int b) {
    return ((a > b) ? a : b);
}

int min(const int a, const int b) {
    return ((a < b) ? a : b);
}

int get_length(long long n) {
    int cnt = 1;
    
    while (n != 1) {
        cnt++;
        
        if (n % 2 == 0)
            n = n / 2;
        else
            n = 3 * n + 1;
    }
    
    return cnt;
}

int main() {
    int a, b;
    while (scanf("%d %d", &a, &b) != EOF) {
        int max_length = -1;
        int i;
        for (i=min(a, b); i <= max(a, b); i++)
            max_length = max(max_length, get_length(i));
        
        printf("%d %d %d\n", a, b, max_length);
    }

    return 0;
}