/in/foo.cc:24:15: error: stray '@' in program
  wlt0716 LV 9 @ 2 年前
               ^
/in/foo.cc:24:19: error: stray '\345' in program
  wlt0716 LV 9 @ 2 年前
                   ^
/in/foo.cc:24:20: error: stray '\271' in program
  wlt0716 LV 9 @ 2 年前
                    ^
/in/foo.cc:24:21: error: stray '\264' in program
  wlt0716 LV 9 @ 2 年前
                     ^
/in/foo.cc:24:22: error: stray '\345' in program
  wlt0716 LV 9 @ 2 年前
                      ^
/in/foo.cc:24:23: error: stray '\211' in program
  wlt0716 LV 9 @ 2 年前
                       ^
/in/foo.cc:24:24: error: stray '\215' in program
  wlt0716 LV 9 @ 2 年前
                        ^
/in/foo.cc:21:1: error: 'Copy' does not name a type
 Copy
 ^~~~
/in/foo.cc: In function 'LL ksm(LL, LL)':
/in/foo.cc:28:11: error: redefinition of 'LL ksm(LL, LL)'
 inline LL ksm(LL a,LL b){LL r=1;for(;b;a=a*a%mod,b>>=1)if(b&1)r=r*a%mod;return r;}
           ^~~
/in/foo.cc:4:11: note: 'LL ksm(LL, LL)' previously defined here
 inline LL ksm(LL a,LL b){LL r=1;for(;b;a=a*a%mod,b>>=1)if(b&1)r=r*a%mod;return r;}
           ^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:29:5: error: redefinition of 'int main()'
 int main()
     ^~~~
/in/foo.cc:5:5: note: 'int main()' previously defined here
 int main()
     ^~~~