Command not found & syntax error

[sunjam]

Used chmox +x

$ ./sudoku.c 
./sudoku.c: line 1: //: Is a directory
./sudoku.c: line 2: /bin: Is a directory
./sudoku.c: line 3: LICENSE: command not found
./sudoku.c: line 4: LICENSE: command not found
./sudoku.c: line 5: LICENSE: command not found
./sudoku.c: line 6: LICENSE: command not found
./sudoku.c: line 7: LICENSE: command not found
./sudoku.c: line 8: LICENSE: command not found
./sudoku.c: line 9: LICENSE: command not found
./sudoku.c: line 10: syntax error near unexpected token `at'
./sudoku.c: line 10: ` * (at your option) any later version.'

Removed the opening 10 comments and now see:

$ ./sudoku.c 
./sudoku.c: line 9: struct: command not found
./sudoku.c: line 10: int: command not found
./sudoku.c: line 11: char: command not found
./sudoku.c: line 12: syntax error near unexpected token `}'
./sudoku.c: line 12: `};'

[S4mu3LJ3f]

Need to compile first