Javascript

Question

The snail climbs up 7 feet each day and slips back 2 feet each night.
How many days will it take the snail to get out of a well with the given depth?

Pls, some should help me

My trial=>

for (i=7; i<=42, i=i+7-2) {
document.write(i)
}

Answer 1

Instead of using a step of 5,

you should do the forth and back separately,

because there is a case that the snail just get out of the well when it moves forth,

in this case, in the last iteration, there is no back of 2.

Answer 2

If you want to use while loop:
while (p < depth){
p += 7;
days++;
if(p>=depth){
break;
}
p -= 2;
}

Answer 3

for( var i=0;i<depth; i++){
if(s>=depth || s>=depth-2 ){
break;

}
s=s+g-t ; //5//10//15//20//25//30//35//40

These are some necessary changes that you should bring to your code

Answer 4

Thanks