ZOJ 2482 IP Address（水题）

题目链接：ZOJ 2482 IP Address

#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
#include<string>
#include<cstring>

using namespace std;
typedef long long ll;
const int maxn = 10010;
const int INF = 0x3f3f3f3f;
int a[maxn];

int main()
{
	int n;
	scanf("%d",&n);
	string s;
	while(n--)
	{
		cin>>s;
		reverse(s.begin(), s.end());
		int len = s.length();
		int cnt = 0,tmp = 0;
		for(int i=0;i<len;i++)
		{
			tmp += (s[i]-'0')*pow(2,i%8);
			if(i%8==7)
			{
				a[++cnt] = tmp;
				tmp = 0;
			}
		}
		
		printf("%d.%d.%d.%d\n",a[4],a[3],a[2],a[1]);
	}
	 
	return 0;
}