3016953_wa.cpp

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, ans;

	freopen("data.in","r",stdin);
	freopen("res1.txt","w",stdout);
	while(scanf("%d%d%d%d",&a,&b,&c,&d)==4)
	{
		int a1 = calc(c,a);
		int a2 = calc(d,b);
		int a3 = calc(c,b);
		int a4 = calc(d,a);
		if(a1 < 0)	a1 = 0;
		if(a2 < 0)	a2 = 0;
		if(a3 < 0)	a3 = 0;
		if(a4 < 0)	a4 = 0;
		ans = min(a1+a2,a3+a4);
		printf("%d\n",ans);
	}
	return 0;
}