foo.cc: In function 'int FindMaxNeg(Node*)':
foo.cc:25:9: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   25 |         else
      |         ^~~~
foo.cc:35:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   35 |                 Node *cur=head;
      |                 ^~~~
foo.cc: In function 'int main()':
foo.cc:80:11: warning: statement has no effect [-Wunused-value]
   80 |     for ( p1;p1<a1+n1;p1++)  {cin>>*p1;}
      |           ^~
foo.cc:82:11: warning: statement has no effect [-Wunused-value]
   82 |     for ( p2;p2<a2+n2;p2++)  {cin>>*p2;}
      |           ^~
foo.cc: In function 'int FindMaxNeg(Node*)':
foo.cc:42:12: warning: 'Max_data' may be used uninitialized [-Wmaybe-uninitialized]
   42 |     return Max_data;
      |            ^~~~~~~~
foo.cc:22:13: note: 'Max_data' was declared here
   22 |         int Max_data;
      |             ^~~~~~~~

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