SDE - Intern

find the output of the below code.for (var i=0;i< 5;i++){    setTimeout(()=>{        console.log(i);    })}

find the output of the below code.for (let i=0;i< 5;i++){    setTimeout(()=>{        console.log(i);    })}

Given an array arr of length N consisting of positive and negative integers, return the length of the longest subarray whose sum is zero.

what is deadlock?

You are given the schedule of 'N' meetings with their start time 'Start[i]' and end time 'End[i]'.

You have only 1 meeting room. So, you need to return the maximum number of meetings you can organize.

Note:

The start time of one chosen meeting can’t be equal to the end time of the other chosen meeting.

For example:

'N' = 3, Start = [1, 3, 6], End = [4, 8, 7].

You can organize a maximum of 2 meetings. Meeting number 1 from 1 to 4, Meeting number 3 from 6 to 7.

There are four-person A, B, C, and D who wants to cross a weak bridge at the night. They have one torch with them. Person A, B, C, and D take 1,2,5, and 8 minutes respectively to cross the complete bridge. At a time, only 2 persons can walk on the bridge.

In what minimum time all persons can cross the bridge and how?