Using the do-while loop sum all the multiples of 5 between 0 to 100

Answer 1

Easy with mathematics.
int x = 100 / 5;
int ans = (((x) * (x + 1)) / 2) * 5;
Same answer without any loop. This is more efficient algorithm. 😊

Answer 2

Spam

Answer 3

int i=5,sum=0;
do{
sum=sum+i;
i+=5;
}while(i==100);
}

Answer 4

https://code.sololearn.com/c3U5TOU8QCwX/?ref=app
There you are even a bit more. Unless I misunderstood what you were going for.