HJ33 整数与IP地址间的转换

位运算

题目

代码

#include <iostream>
using namespace std;

//位运算 
int main(){
	long long int a, b, c, d, num;
	while(scanf("%lld.%lld.%lld.%lld",&a, &b, &c, &d) != EOF){
		cin>>num;
		cout<< (a<<24) + (b<<16) + (c<<8) + d<<endl;
		a = num>>24;
		num = num - (a<<24);
		b = num>>16;
		num = num - (b<<16);
		c = num>>8;
		num = num - (c<<8);
		d = num;
		cout<<a<<"."<<b<<"."<<c<<"."<<d<<endl;
	}
	return 0;
}

标签：int,.%,整数,num,long,IP地址,HJ33,lld
来源： https://blog.csdn.net/qq_42250642/article/details/123596486