write a program in c++ to scramble a bmp image file using a scramble key 0x7c and an XOR logic. print out the original image, the scrambled image and the program. Note: the first 24bytes of a bmp file contain the header information of the file.

1 Answers  

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write a program that calculate the volume of cylinder after user enters radius and height and show the algorithm used

1 Answers   Jomo Kenyatta University,

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What is the time complexity T(n) of the following program? a) int n, d, i, j; cin >> n; for (d=1; d<=n; d++) for (i=1; i<=d; i++) for (j=1; j<=n; j += n/10) cout << d << " " << i << " " << j << endl; b) void main() { int n, s, t; cin >> n; for (s = 1; s <= n/4; s++) {t = s; while (t >= 1) { cout << s << " " << t << endl; t--; } } } c) void main() { int n, r, s, t; cin >> n; for (r = 2; r <= n; r = r * 2) for (s = 1; s <= n/4; s++) { t = s; while (t >= 1) { cout << s << " " << t << endl; t--; } } }

3 Answers   CTS, IBM, Infosys, Qatar University,

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Hello, I am trying to write a program in c++ which accepts month and year from the user and prints the calender. So please tell me the algorithm and what is the calender logic.

0 Answers  

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Write a program that print in screen a tree with its height taken from user by entering number of 4 digits and find the odd numbers then calculate the sum of odd numbers so he get the height of tree?

0 Answers  

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How reader and writer problem was implemented and come up with effective solution for reader and writer problem in case we have n readers and 1 writer.

6 Answers   Microsoft, NetApp,

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How to swap two ASCII numbers?

0 Answers  

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write a program to perform generic sort in arrays?

0 Answers  

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#include<iostream.h> //main() //{ class A { friend class B; public: void read(); }; class B { public : int a,b; }; void A::read() { cout<<"welcome"; } main() { A x; B y; y.read(); } In the above program......, as B is a friend of A B can have access to all members,i cant access y.read . could you please tell me the reason and what would i code to execute this program?

2 Answers  

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Complexity T(n) What is the time complexity T(n) of the following portions of code? For simplicity, you may assume that n is a power of 2. That is, n = 2k for some positive integer k. a) ? for (i = 1; i <= n; i++) { j = n; cout << i << ? ? j << ? ? << endl; } b) ? for (i = 0; i <= n; i += 2) { j = n; cout << i << ? ? j << ? ? << endl; } c) ? for (i = n; i >= 1; i = i/2) { j = n; cout << i << ? ? j << ? ? << endl; } d) for (i = 1; i <= n; i++) { j = n; while (j >= 0) { cout << i << ? ? j << ? ? << endl; j = j - 2; } }

0 Answers   Qatar University,

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1+1/2!+1/3!+...+1/n!

0 Answers  

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Min-Max Write an algorithm that finds both the smallest and largest numbers in a list of n numbers and calculate its complexity T(n).

1 Answers   Infosys, Qatar University,

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