View Compilation Error

1054984_0_0_32692.cpp: In function `char zab(char, char, char)':
1054984_0_0_32692.cpp:11: error: return-statement with no value, in function returning 'int'
1054984_0_0_32692.cpp: At global scope:
1054984_0_0_32692.cpp:14: error: `main' must return `int'