ICSE − Q & A

Your task is to construct a building which will be a pile of n cubes. The cube at the bottom will have a volume of n^3, the cube above will have volume of (n-1)^3 and so on until the top which will have a volume of 1^3.

You are given the total volume m of the building. Being given m can you find the number n of cubes you will have to build?

The parameter of the function findNb (find_nb, find-nb, findNb) will be an integer m and you have to return the integer n such as n^3 + (n-1)^3 + ... + 1^3 = m if such a n exists or -1 if there is no such n.

In school , I do not write comments while programming yet I get marks . 
So , is it necessary to write comments in Boards ?

What are Coprime numbers?

Can any one suggest the code for :
* * * *
*      *
*      *
* * * *

Do we have Bitwise operators in our syllabus ??

**notes for those who find this confusing **

TYPE CASTING/CONVERSION is implicit +explicit 
COERCION  is implicit 
CASTING is explicit.

ANY TDA STUDENT HERE? YA SAB COMP XD!

Write a program to accept a sentence and delete all the uppercase characters present in the string. The program also counts the number of deleted characters and also replace the vowels with "*" . Print the new replaced string.
Sample input : The Capital of India is New Delhi.
Output : h*    *p*t*l   *f  nd**   *s  *w  *lh*.

Write a java program to input a sentence and to display sentence in reverse order.

Types of utility?