/in/foo.cc: In function 'int main()':
/in/foo.cc:12:22: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  #define repi(i,a,b) for(reg int i=a,bbb=b;i<=bbb;++i)//attention reg int or reg ll ?
                      ^
/in/foo.cc:59:2: note: in expansion of macro 'repi'
  repi(i,1,V) dp[i]=infl; dp[0]=0;  
  ^~~~
/in/foo.cc:59:26: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  repi(i,1,V) dp[i]=infl; dp[0]=0;  
                          ^~