I have encountered a difference between linux and windows in usaco.

Here is a different part of linux and windows on usaco. We will share with you the Linux general technology-Linux programming and kernel information. The following is a detailed description. When I make a cowcycle search question, I use map When constructing a string.

String s;

Char c;

S + = c;

This statement is completely correct on windows, but on linux, it is true and sometimes wrong. It took a long time to try it out. In the future, be sure to use it with caution for some nonstandard usage.