competitive-programming/u100-The-3n+1-Problem/p100.c

// 

#include <stdio.h>

int cycle(a) int a;
{
	int i = 1;

  while (a != 1){
		if (a % 2 == 0){
	    a = a/2;
		}
		else{
			a = 3*a+1;
		}
		i++;
  }
  return i;
}


int main()
{
    int a,b,max,temp;
    int aOrig,bOrig;
    int i;

    while (scanf("%d %d\n",&a,&b)==2){
	
			aOrig = a;
			bOrig = b;

			if (a > b){
					temp = a;
					a = b;
					b = temp;
			}
	
			max = cycle(a);
			for(i=a+1; i<=b; i++) {
					temp = cycle(i);
					if (temp > max)
				max = temp;
			}
			printf("%d %d %d\n", aOrig, bOrig,max);
    }
    return(0);
}