WAP to read any integer number from the user and display addition of all the digits of that number eg. 124 =1+2+4=7

Answer 1

Here is a simple way, but using a while loop.

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

I didn't use a for loop, as I didn't know how many digits were there in the number. So I would have to write a while loop before the for, just to count the number of digits, and then use a for to add every digit, till the counter reaches the number of digits.

Answer 2

and yes use for loop

Answer 3

Number.prototype.sumDigits = function(){ return Array.from(this+'').map(Number).reduce((a,v)=>a+v);
}

var n = 12568;
var sum = n.sumDigits();

https://code.sololearn.com/Wgr0q924x1Aq/?ref=app

Answer 4

naah

Answer 5

but I want coding using for loop