1825897_ac_31ms_24k.c

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>

int NO;
int f(int n)
{ 
	int tmp;
	if(n==1) {tmp = NO + 1; NO = 0;return tmp;}
	NO++;
	if(n%2) f(3*n+1);
    else f(n/2);
}
void main()
{
 int max, m, n, i, big, small;
 while(scanf("%d %d",&m,&n) == 2)
 {   
	 big = m; small = n;
	 if(m < n)
	 {big = n; small = m;}
	 max = f(small);
     for(i = small + 1; i <= big; i++)
		 if(f(i) > max)
			 max = f(i);
		 printf("%d %d %d\n",m,n,max);
 }
}