Write a program that inputs an integer and display the sum of its digits using while loop

Answer 1

int main() {
int x, sum=0;
cin>>x;

while(x!=0) {
sum+=x%10;
x/=10;
}
cout<<sum;

return 0;
}

Answer 2

int sum=0;
int num;
cin>>num;
while(num!=0)
{
sum+=num%10;
num\=10;
}
cout<<sum;