int main()为什么没有返回值也行啊?
#include<stdio.h>int main()
{
void hanoi(int n,char one,char two,char three);
int m;
printf("input the number of disks:");
scanf("%d",&m);
printf("The step to move %d disks:\n",m);
hanoi(m,'A','B','C');
//return 0;
}
void hanoi(int n,char one,char two,char three)
{
void move(char x,char y);
if (n==1)
move(one,three);
else
{
hanoi(n-1,one,three,two);
move(one,three);
hanoi(n-1,two,one,three);
}
}
void move(char x,char y)
{
printf("%c->%c\n",x,y);
}
注不注释掉return都能运行,为什么啊?
求前辈解答!