Could anyone tell me the cout of this code? And please explain :)

Question

int x = 0;
x%=6;
cout<<x;

Answer 1

output is 0
because x%=6 which means x=x%6
then x will be assigned with a value after 0%6 expression is solved.
6*0=0 so the remainder after dividing 0 with 6 is 0.

Answer 2

0

Answer 3

About your second question :

You can see that the loop will only execute 3 times ; for I = 1, 4, 7.

Now consider the if statement for these 3 values:
10/1 = 10, so if evaluates to false.
10/4 = 2.5, but since the expression compares ints it is truncated to 2, so if evaluates to true.
10/7 = 1 for similar reason, so if evaluates to false.

You should now be able to figure out the answer.

Answer 4

@Ettiene how about res? what's the use of it?

Answer 5

i did try it everytime i encounter that question in challenges, i dont know why it didnt work anyways thank you.

Answer 6

also i have this question dude, i dont how to solve this code

int main(){
int res = 0
for (int i=1;i<10;i+=3)
{
if (10/i==2)
continue;
res+=i
}
cout<<res;
}

Answer 7

@Ranpo

The value of i is added to res every time 'if' evaluates to false (since, if 'if' is true, then 'continue' is executed which jumps straight to the end of the loop - and then evaluates the next i for the next round)

So, for 1st loop: i = 1; if is false, so we execute res+=i so res=1
For 2nd loop: i = 4; if is true, so res+=i is skipped; res still 1.
For 3rd loop: i = 7; if is false, so we execute res+=i; res now 8.

Answer: res is 8