How to calculate target number using only array elements?
The idea remains the same here i.e. we either include the current digit or ignore it. If we include the current digit, we subtract or add it from remaining target and recurse for remaining digits with new target.
How to find pair with sum equal to given target?
Given an array of sorted numbers and a target sum, find a pair in the array whose sum is equal to the given target. Write a function to return the indices of the two numbers (i.e. the pair) such that they add up to the given target. We can use the Two Pointers approach to solve this.
Is there a formula to calculate target [ solved ]?
Solve the algebra problem, and the programming problem will be easy. target score= (number of positives+extra surveys)/ (current total+extra surveys) [s2= (p+x)/ (t+x)] solve for x. At this point, can I assume that your algebra skills are good enough to solve that algebra problem?
How to calculate the target number of surveys?
Example : If we get 5 surveys, out of which 4 are positive surveys and one is negative survey, the score will be 80% (no. of positive surveys/total number of surveys). The target is 90%. I need a formula to calculate number of surveys require to achieve the target. Please help!!!
How to get the remainder of an array in Java?
1. Create an array with size x. 2. Initialize all rem elements to zero. 3. Traverse the given array r=arr [i]%x which is done to get the remainder. rem [r]=rem [r]+1 i.e. increasing the count of elements that have remainder r when divided with x. 4. Now, traverse the rem array from 1 to x/2.
How to check for pairs with sum as X?
Like that we have to check for pairs with remainders (1,5), (2,4), (3,3). if we have one or more elements with remainder 1 and one or more elements with remainder 5, then surely we get a sum as 6.
Do you have to take two pointers to sort an array?
But for using two pointer technique, the array must be sorted. Once the array is sorted the two pointers can be taken which mark the beginning and end of the array respectively.