將十進位制ip轉換為二進位制顯示。如輸入128.1.2.128，轉換為10000000.00000001.00000010.10000000

#include <stdio.h>
#include <string.h>
//將IP地址轉化為二進位制

void bin(int s){
	int c[8]={0};
	int i=7,tmp,j;
	while(s!=0){
		tmp = s%2;
		c[i] = tmp;
		s = s/2;
		i--;
	}
	for(j=0;j<8;j++){
		printf("%d",c[j]);
	}
}
int main(){
	int l,n=0,i,j;
	char c[30];
	int s[3];
	while(scanf("%s",c)!=EOF){
		l = strlen(c);
		for(i=0;i<l;i++){
			if(c[i]>='0'&&c[i]<='9'){
				j = c[i] - '0';
				n = n*10+j;
			}else{
				bin(n);
				printf(".");
				n=0;
			}
			if(i==l-1){
				bin(n);
			}	
		}		
	}
	return 0;
}