Решение на определение наибольшего числа

#include <windows.h>
#include<iostream>
using namespace std;
void main ()
{SetConsoleOutputCP(1251);
int a,b,c,x,y,z;
cout <<"a="<<endl;cin>>a;
cout <<"b="<<endl;cin>>b;
cout <<"c="<<endl;cin>>c;
x=a-b;
z=b-c;
y=a-c;
if(x>0)
{if(y>0){if(a=c){ if(a=b)cout <<"max=a,b,c"<<endl; else cout <<"max=c"<<endl; ;}else if (a=b)cout <<"max=a,b"<<endl; else cout <<"max=a"<<endl;}
else cout <<"max=c"<<endl;}
else if(z>0){if(b=c)cout <<"max=b,c"<<endl; else cout <<"max=b"<<endl;}else cout <<"max=a"<<endl;
}

#include <cstdio>
 
int max(int a, int b) {
  return ((a > b) ? a : b);
}
 
int max(int a, int b, int c) {
  return max(max(a, b), c);
}
 
int main(int argc, char *argv[]) {
  int a = 3, b = 1, c = 2;
  printf("%d\n", max(a, b, c));
  printf("%d\n", max(a, c, b));
  printf("%d\n", max(b, a, c));
  printf("%d\n", max(b, c, a));
  printf("%d\n", max(c, a, b));
  printf("%d\n", max(c, b, a));
  return 0;
}