b2k.cpp: In function `void myadd(std::vector<int, std::allocator<int> >*, int)': b2k.cpp:8: warning: unused variable `int i' b2k.cpp:8: warning: unused variable `int len' b2k.cpp: In function `int main()': b2k.cpp:15: `n' undeclared (first use this function) b2k.cpp:15: (Each undeclared identifier is reported only once for each function it appears in.) b2k.cpp:18: `op' undeclared (first use this function) b2k.cpp:18: `x' undeclared (first use this function) b2k.cpp:20: `erase' undeclared (first use this function) b2k.cpp:21: `find' undeclared (first use this function) b2k.cpp:14: warning: unused variable `int mod'