10.24 work 2

#include <iostream>
using namespace std;
int main(){
    int a,b,c,d,max;
    cout<<"******"<<endl;
    cin>>a>>b>>c>>d;
    max=a>=b?a:b;
    max=max>=c?max:c;
    max=max>=d?max:d;
    cout<<"The max of them is:"<<max<<endl;
    return 0;
}

#include <iostream>
using namespace std;
int max2(int p,int o,int i,int u);
int max1(int a,int b);

int main(){
    int a,b,c,d,max;
    cin>>a,b,c,d;
    max=max2(a,b,c,d);
    cout<<"the large = "<<max<<endl;
    return 0;
}
  int max2(int p,int o,int i,int u){
      int m;
      m=max1(p,o);
      m=max1(m,i);
      m=max1(m,u);
  }
  int max1(int a,int b){
      return a>b?a:b;
  }