acop.cpp: In function 'void bk(int)': acop.cpp:7: error: invalid types 'int[int]' for array subscript acop.cpp:7: error: 'n' was not declared in this scope acop.cpp:8: error: 'x1' was not declared in this scope acop.cpp:8: error: 'x2' was not declared in this scope acop.cpp:10: error: 'y1' was not declared in this scope acop.cpp:10: error: 'y2' was not declared in this scope acop.cpp:12: error: invalid types 'int[int]' for array subscript acop.cpp:22: error: 'x2' was not declared in this scope acop.cpp:24: warning: name lookup of 'y1' changed <built-in>:0: warning: matches this 'double y1(double)' under ISO standard rules acop.cpp:10: warning: matches this 'y1' under old rules acop.cpp:24: warning: pointer to a function used in arithmetic acop.cpp:24: error: invalid conversion from 'double (*)(double)' to 'int' acop.cpp:24: error: 'y2' was not declared in this scope acop.cpp: In function 'int main()': acop.cpp:29: warning: unused variable 'i'