Topics by vidit_X

I'm a lot confused with multi-dimensional arrays and pointers. I tried searching, found and read some articles. But there are still some doubts. We can not use a double pointer(int **) for a two dimensional array, right? Instead we need to have an array of pointers with the length equal …

Practise problem by ~s.o.s~ Q. Write a program which performs addition, subtraction, multiplication of matrices. The dimensions of both the matrices would be specified by the user (dynamic memory allocation required). Use of structure or a class to define the matrix would be a good idea. (Expert) [CODE]#include<iostream> using namespace …

[URL="http://www.daniweb.com/forums/post303743-1.html"]Q.Write a program which will print all the pairs of prime numbers whose sum equals the number entered by the user. ( suggested by Aniseed ) (Intermediate) [/URL] [code=C++] #include<iostream.h> #include<conio.h> #include<math.h> int prime(int); void main() { int i,j,c1,c2,num,f1,f2; clrscr(); cout<<"Enter the number-"; cin>>num; for(i=2,j=num-2;i<=num/2;i++,j--) { f1=prime(i); if(f1) { f2=prime(j); …