OJ Board

brianfry713 wrote:Don't assume that the characters in this problem have an ASCII value less than 128. Use an unsigned char.

So they're larger that 127 and thus the char ends up as negative is that what's going on? In that case there's odd characters in the input which is very silly.

Can anybody explain how the read characters can have a negative value? I get that a standard signed char can be negative, but all standard ASCII characters are between 0 and 127 so why is it a problem?