#include<stdio.h>
void main()
{
int a=21,i;
clrscr();
puts("*****************************************************");
puts("* This is a Matchstick Taken Game. *");
puts("* There are 21 machsticks, two persons take them in *");
puts("* turn. Each one each time takes 1 to 4 sticks. The *");
puts("* one who takes the last stick will lose the game. *");
puts("*****************************************************");
printf(" >> --------------- Game Begin ---------------------\n");
while(a>0)
{
do{
printf(" >> How many sticks do you wish to take(1~%d)?",a>4?4:a);
scanf("%d",&i);
}while(i>4||i<1||i>a); /*接收正在确的输入*/
if(a-i>0) printf(" >> %d stick left in the pile.\n",a-i);
if((a-i)<=0)
{
printf(" >> You have taken the last stick.\n");
printf(" >> ******* You lose! ******* \n"); /*输出取胜标记*/
printf(" >> --------------- Game Over! ---------------------\n");
break;
}
else
printf(" >> Compute take %d stick.\n",5-i); /*输出计算机取的子数*/
a-=5;
printf(" >> %d stick left in the pile.\n",a);
}
printf("\n Press any key to quit...");
getch();
}