c语言 ：用递归算法求整数m和n的最大公约数.为什么说有错误?

c语言 ：用递归算法求整数m和n的最大公约数.为什么说有错误?#includeint gcd(int m,int n){int g;if(n==0)g=m;else g=gcd(n,m%n);return g;}void main(){int m,n;scanf("%d,%d",&m,&n);printf("gcd=%d",gcd(m,n));}--------------------Configuration:变化 - Win32 Debug--------------------Compiling...变化.cppC:\Documents and Settings\Administrator\变化.cpp(10) :error C2018:unknown character '0xa3'C:\Documents and Settings\Administrator\变化.cpp(10) :error C2018:unknown character '0xac'C:\Documents and Settings\Administrator\变化.cpp(10) :error C2296:'&' :illegal,left operand has type 'char [6]'Error executing cl.exe.变化.obj - 3 error(s),0 warning(s)