guess2.c

c的猜数字源代码

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <process.h>
void main(void)
{
	int answer[4],guess=0,a,b,times=0,i,j;
	for(i=0;i<=3;i++)
	{
		randomize();
		answer[i]=rand()%10;
		for(j=0;j<i;j++)
		{
			while(answer[i]==answer[j])
			{
				answer[i]=rand()%10;
				j=-1;
			}
		}
	}
	printf("please guess\n");
	while(a!=4)
	{
		a=0;
		b=0;
		times++;
		do
		{
			printf("%d     ",times);
			scanf("%d",&guess);
			if(guess==0)
				exit(0);
		}while(guess<0||guess>9999);

		for(i=3;i>-1;i--)
		{
			for(j=0;j<4;j++)
			{
				if((int)(guess/pow10(i))==answer[j])
				{
					if(i+j==3)
						a=a+1;
					else
						b=b+1;
				}
			}
			guess=guess-(int)(guess/pow10(i))*pow10(i);
		}
		printf("      %dA%dB\n",a,b);
	}
}