Why i am not able to get right output

Question

#include<stdio.h>
//#include<conio.h>
#include<math.h>
int main()
{
int a,b;
printf("\n enter no.1st n 2nd");
scanf("%d &d",&a,&b);
if(a==b)
printf("error");
else{
if(a>b)
printf("largest no=%d",a);
else
printf("largest no=%d",b);

}
getch();
}

Answer 1

First : scanf doesn't work on sololearn
Second : correct from "%d &d" to "%d %d" in scanf
Third : getch used with commented conio header
Fourth : no return statement

Answer 2

Did you run this code on Code Playground? Try this version:

#include <iostream>

int main()
{
int a,b;
std::cin >> a >> b;

if(a==b)
std::cout << "Error";
else
std::cout << "Largest = " << (a > b ? a : b);

return 0;
}