SDE - 1

You are given an array/list ‘ARR’ consisting of ‘N’ distinct integers arranged in ascending order. You are also given an integer ‘TARGET’. Your task is to count all the distinct pairs in ‘ARR’ such that their sum is equal to ‘TARGET’.

Note:

1. Pair (x,y) and Pair(y,x) are considered as the same pair. 

2. If there exists no such pair with sum equals to 'TARGET', then return -1.

Example:

Let ‘ARR’ = [1 2 3] and ‘TARGET’ = 4. Then, there exists only one pair in ‘ARR’ with a sum of 4 which is (1, 3). (1, 3) and (3, 1) are counted as only one pair.

You are given a string 'str' of length 'N'.

Your task is to reverse the original string word by word.

There can be multiple spaces between two words and there can be leading or trailing spaces but in the output reversed string you need to put a single space between two words, and your reversed string should not contain leading or trailing spaces.

Example :

If the given input string is "Welcome to Coding Ninjas", then you should return "Ninjas Coding to Welcome" as the reversed string has only a single space between two words and there is no leading or trailing space.

You are given a string ‘str’ of even length. Your task is to find out if we divide the ‘str’ from the middle, will both the substrings contain an equal number of vowels or not.

For Example:

You are given, ‘str’= ‘codingninjas’, when we split this string we get, ‘coding’ and ‘ninjas’ which both contain 2 vowels each. Hence the answer is ‘True’.

You are given a string (STR) of length N, consisting of only the lower case English alphabet.

Your task is to remove all the duplicate occurrences of characters in the string.

For Example:

If the given string is:
abcadeecfb

Then after deleting all duplicate occurrences, the string looks like this:
abcdef

Using the free version of apixu weather API, make a simple weather screen that shows current
temperature & location.
Show appropriate failure messages in case of error
Note: Use fragments to achieve the above. Choose your way to present the UI.

The most of questions from my Project. Like why U use this why do you reduce the size of the canvas and View Lifecycle.

How will you design caching for feature one API Call and display data on the app?

If you are working on one Project for 3months and management decide that that feature will not go into production why will you manage that situation?

Where do you see yourself in 5 years?