3016762_wa.c

北大大牛代码 1240道题的原代码 超级权威

#include <stdio.h>
#include <math.h>

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

int calc(int a,int b)
{
	return (int)(ceil)(log10(a)/log10(2) - log10(b)/log10(2));
}

int main()
{
	int a, b, c, d;

	while(scanf("%d%d%d%d",&a,&b,&c,&d)==4)
	{
		printf("%d\n",min((calc(c,a)+calc(d,b)),(calc(c,b)+calc(d,a))));
	}
	return 0;
}