2034057_re.c

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>
# include <ctype.h>
# include <string.h>
# include <stdlib.h>
# define f(a) islower(a)?36+a-'a':(isdigit(a)?a-'0':a-'A'+10)
# define g(b) b<10?'0'+b:(b<36?'A'+b-10:'a'+b-36)

int w1, w2, n;
char ans[100];

void cal(char *num)
{
	int i, t, s, l, len, mark;
	char q[100];

	len = strlen(num);
	i = t = l = 0;
	mark = 1;
	while(1&&mark)
	{	
		while(t<w2&&i<len)
		{
	     	t *= w1;
	     	t += f(num[i]);
			q[i] = '0';
			i++;
		}
		s = t / w2;
		if(!s)
			mark = 0;
		if(mark)
			q[i-1] = g(s);
		t -= s*w2;
	}
	ans[n++] = g(t);
	q[i] = '\0';
	for(i = 0; i < len; i++)
		if(q[i]!='0')
		{
			cal(q);
			break;
		}
}

void input()
{
	int i, t;
	char num[100];

	scanf("%d",&t);
	while(t--)
	{
		scanf("%d%d%s",&w1,&w2,num);
		n = 0;
		cal(num);
		printf("%d %s\n%d ",w1,num,w2);
		for(i = n-1; i >= 0; i--)
			printf("%c",ans[i]);
		printf("\n\n");
	}
}

int main()
{
	input();
	return 1;
}