View Code of Problem 77

/*写一函数,输入一个四位数字,要求输出这四个数字字符,
但每两个数字间空格。如输入1990,应输出"1 9 9 0"。*/
#include<stdio.h>
int main()
{
	int n;
	scanf("%d",&n);
	int t;
	int divide=1000;
	while(divide>0)
	{
		t=n/divide;
		printf("%d",t);
		n-=t*divide;
		divide/=10;
	
		if(divide>0)
		{
			printf(" ");
		}
	}
}

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