(link)[https://www.luogu.com.cn/record/178708184]
报错

In file included from /nix/store/bbmwawbq7wjb54fa35wr72alcm083d1f-luogu-gcc-9.3.0/include/c++/9.3.0/cmath:45,
                 from /tmp/compiler_g2o8hios/src:8:
/tmp/compiler_g2o8hios/src:6:18: 错误：‘long long long’对 GCC 来说太长了
    6 | #define int long long
      |                  ^~~~
/tmp/compiler_g2o8hios/src:6:18: 错误：‘long long long’对 GCC 来说太长了
    6 | #define int long long
      |                  ^~~~

但是将#include<cmath>放到最上面则不会报错
这是为什么