Title: Ask

#include' standard fax. Use "h" of namespace STD; int n； int m； Int bcaint _tmain(int argc, _TCHAR* argv){cout' Please enter n3360' cinn; CoutedlCout' Please enter m :' CIN m； A(n，m)； //There is an error here }void A(int n, int m){ int b； int c=n； int a； for(a=n； a==n-m ^ 1 | | b==n-m ^ 1； a=a-1){ b=a-1； c=c * b； }cout' and then a is:' c endl} d: \ documents and settings \ 002 \ my documents \ visual studio project \ text. CPP (16) : Error C3861: 'A' The identifier d: could not be found even if the parameter-related search was used. My document \Visual Studio project \text\text.cpp(19) : Error C2365: 'A' Redefined; The previous definition was that there was an error in the' previously unknown identifier' and I 't know what happened. Please help me. By the way, it's C.