Can anyone explain the output ?

Question

//~~ first code ~~

#include <iostream>
using namespace std;

int main() {

int i=0;

for(;i<=4;i++)

i*=6;

cout<<i;
return 0;
}

//output 7

// ~~ second code ~~

#include <iostream>
using namespace std;

int main() {

int i=0;

for(;i<=4;i++);

i*=6;

cout<<i;
return 0;
}

//output 30
//in the second code( i )will be 5 from the for loop and then multiply by 6 , so the output is 30 , am I right ?

Answer 1

You are correct.

In the first code i starts off as 0
then (0 <= 4) => true
0 * 6 = 0
++i, i becomes 1
(1 <= 4) => true
1 * 6 = 6
++i, i becomes 7
(7 <= 4) => false
Done

Answer 2

Ahh , Now it is clear ,thank you so much @Dennis.

Answer 3

here I was thinking that [i] would stop incrementing at 4.

Edit: Clearly it does not. Adds another for good measure ;l

https://code.sololearn.com/cp043va9GuW5/?ref=app