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int IpToInt(vector<int>& ip)
{
int res = 0;
int temp =0;
int i =0;
for(; i<ip.size();i++)
{
temp = ip[i];
if(i == 0)
{
temp <<= 24;
}
else if(i == 1)
{
temp <<= 16;
}
else if(i == 2)
{
temp <<= 8;
}
res += temp;
}
return res;
}