Adobe Question: Url Encode a string

A buffer of infinite length is given. You need to change < to < and > to >

Solution:

void encode()
{
char str[2048] = "ab<bc>nn<";
int len = strlen(str);
int count = 0;
for(int i = 0; i < len; ++i)
{
(str[i] == '<' || str[i] == '>') && (++count);
}

int newLen = len + 3*count;
str[newLen] = '\0';
for(int i = newLen-1, j = len-1; j>=0; --j)
{
if(str[j] == '<' || str[j] == '>')
{
str[i--] = ';';
str[i--] = 't';
(str[j] == '<') && (str[i--] = 'l') || (str[i--] = 'g');
str[i--] = '&';
}
else
str[i--] = str[j];
}
cout<<'\n'<<str<<"\n\n";
}