/in/foo.cc:7:27: error: conflicting declaration 'int c [1001]'
 int a[1001],b[1001],c[1001];
                           ^
/in/foo.cc:5:6: note: previous declaration as 'char c'
 char c;
      ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:30:7: error: invalid types 'char[int]' for array subscript
    c[i]=k;
       ^