+ 3
The output is 6 but Idk hw plzz help!!
int n=15, s=0, x; for(int i=0; i<=n ; i++ ){ x = n%10 ; s=s + x; n = n/10; } System.out.print(s);
3 odpowiedzi
+ 10
This is an algorithm to calculate the sum of all digits in an integer, e.g.
n = 1234
// outputs 1+2+3+4
In this case, n = 15. You may try tracking the variable values in the loops. E.g.
// first loop
x = n%10 ; // x stores 5
s = s + x; // s stores 5
n = n/10; // n becomes 1
// second loop
x = n%10 ; // x stores 1
s = s + x; // s stores 6
n = n/10; // n becomes 0
System.out.print(s); // prints 6
+ 9
Additional to the explanations of Rei and Szabo:
https://code.sololearn.com/cKvNWLB4wqnz/?ref=app
+ 1
1.iteration:
i = 0
x = 15%10 = 5
s = 0+5 = 5
n = 15/10 = 1 because is int.
2.iteration
i = 1
x = 1%10 = 1
s = 5 + 1 = 6
n = 1 /10 = 0
i <= n (2 < 0) false, so no more iteration.
s = 6