Snail in the well

Question

Hi, I've seen a lot of answers on this and I mostly understand them, but they weren't my first thought. I appreciate that I'm sure my method is over complicated but because it's the way I thought of it first on my own id like to understand where I went wrong. If you're unfamiliar, there's a snail in a well of random depths in inches, it climbs 7
Inches each day and falls 2 inches every night, so I need to code something that figured out how many days it will take and I don't understand what's wrong with what I put.
function main() {
var depth = parseInt(readLine(), 10);
//your code goes here
var day = 0
for (;depth>=0;){
day++
depth+7
if (depth<=0){
break;
} else {
depth-2
}
}
console.log(day)
}

Answer 1

I think you meant to do this ,

var day = 0
for (;depth>=0;){
day++
depth=depth-7
if (depth<=0){
break;
} else {
depth=depth+2
}
}
console.log(day)
}

And it's a really simple and nice way to do it ,I remember answering someone else with a solution for it where I just overcomplicated the code .

Answer 2

Thank you so much, I thougt I fixed the + and - being the wrong way around, but I completely forgot about saying "depth = depth +7", it was driving me crazy, thank you

Answer 3

// the best solution
function main() {
var depth = parseInt(readLine(), 10);
//your code goes here
var
go = 7-2
var dist = 0
var day = 0
for(let go =5; dist<=depth-3; dist +=go){
day+=1

}
console.log(day)
}

Answer 4

try this solution to the snail in the well problem when it hepls then you vote
function main() {
var depth = parseInt(readLine(), 10);
//your code goes here
var climb = 7
var slip = 2
var days = 1
for (workdone = climb ;workdone < depth;days = days+1 ) {

if (workdone==depth) {
break;
}
workdone = workdone + climb;
workdone = workdone - slip;

}
console.log(days)
}

Answer 5

function main() {
var depth = parseInt(readLine(), 10);
//tu código va aquí
var d = 0; // días
var c = 0; // caracol
while (c < depth) {
c += 7 - 2;
d += 1;
if (c > depth) {
if (c - 2 <= depth) {
console.log(d);
break;
}
else if (c > depth) {
console.log(d - 1);
break;
}
}
}
}

Answer 6

Checked all the answers around here and concluded this will be the shortest code possible:

function main() {
var depth = parseInt(readLine(), 10);

var day = 0
for (;depth>0;){
depth-=7
day++
if (depth<=0)
break;
depth+=2}
console.log(day)}

Answer 7

With just one if statment , think out of the box , you dont need for loop at all :
if (depth%5<3){
var days=depth/5;
}else{
var days=(depth/5)+1;
}

console.log(parseInt(days));