/in/foo.cc: In function 'int main()':
/in/foo.cc:39:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int i=1;i<=m;i++)
  ^~~
/in/foo.cc:41:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   fz(1,n);
   ^~
/in/foo.cc: In function 'void fz(int, int)':
/in/foo.cc:9:17: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int ans=99999,k;
                 ^