foo.cc: In function 'int main()':
foo.cc:30:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   30 |   if(sum%k==0&&a[i])
      |   ^~
foo.cc:32:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   32 |    i++;
      |    ^
foo.cc: In function 'int h1(int*, int)':
foo.cc:17:1: warning: control reaches end of non-void function [-Wreturn-type]
   17 | }
      | ^

[Hydro](https://hydro.ac)提供评测服务