问大家一个编程题，谢谢

if(at=a;
a=b;
b=t;
if(at=a;
a=b;
b=t;
if(bt=b;
b=c;
c=t;
printf("%d",c);

#include
using namespace std;
int max(int &a,int &b,int &c)
{

if(a>b&&a>c)
return a;
else if(b>a&&b>c)
return b;
else if(c>a&&c>b)
return c;
}
int main()
{int l,m,n,c;
cin>>l>>m>>n;
c=max(l,m,n);
cout<return 0;
}

max=a>b?(a>c?a:c):(b>c?b:c)

#include
void main()
{
int a,b,c;
int m1,m2,max;
m1=a>b?a:b;
m2=b>c?b:c;
max=m1>m2?m1:m2;
cout<<"最大数="<}

#include
main()
{ int a ,b, c,max;
scanf("%d,%d,%d",&a,&b,&c);
max=a;
if(b>max)
max=b;
if(c>max)
max=c;
}