Borland C++ 5.6 for Win32 Copyright (c) 1993, 2002 Borland
:
Error E2238  8: Multiple declaration for 'sum' in function main()
Error E2344  8: Earlier declaration of 'sum' in function main()
Error E2451  10: Undefined symbol 'a' in function main()
Warning W8004  13: 'c' is assigned a value that is never used in function main()
Warning W8004  13: 'sum' is assigned a value that is never used in function main()
*** 3 errors in Compile ***