bila.cpp:3: error: expected constructor, destructor, or type conversion before 'int' bila.cpp:5: error: 'MAX' was not declared in this scope bila.cpp:5: error: 'MAX' was not declared in this scope bila.cpp:5: error: 'MAX' was not declared in this scope bila.cpp:5: error: 'MAX' was not declared in this scope bila.cpp: In function 'int calculate(int, int)': bila.cpp:15: error: 'value' was not declared in this scope bila.cpp:16: error: 'a' was not declared in this scope bila.cpp:18: error: 'value' was not declared in this scope bila.cpp:19: error: 'value' was not declared in this scope bila.cpp:20: error: 'value' was not declared in this scope bila.cpp:21: error: 'value' was not declared in this scope bila.cpp:22: error: 'value' was not declared in this scope bila.cpp: In function 'int main()': bila.cpp:33: error: 'a' was not declared in this scope bila.cpp:33: error: 'WALL' was not declared in this scope bila.cpp:36: error: 'a' was not declared in this scope bila.cpp:36: error: 'WALL' was not declared in this scope bila.cpp:43: error: 'a' was not declared in this scope bila.cpp:44: error: 'a' was not declared in this scope