Answer Posted / pawan jain

1. Divide the coins in 3 groups of 3 coins each
2. Put 2 groups in the weighing scale
3a. If both the groups weigh equal
1. Pick 2 coins from the 3rd group and put in weighing scale
2. If they weigh equal, the 3rd coin is counterfeit.
Else the coin which weigh more is counterfeit
3b. If they do not weigh equal, pick the group with more
weight and do steps 3a1 and 3a2.

Code for Easily Using Hash Table?

2389

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Implement a command console for changing settings on a particular object. The command console should allow you to enter a string and will return the response (very similar to a terminal session). The commands are as follows: SET propertyname=newvalue will change the target object’s member named “propertyname” to have a value equal to “newvalue”. If the input value is incompatible (i.e. an int being set to a string), print out an appropriate error message. GET propertyname will print out the current value of the target object’s member named “propertyname”. GET * will print out a list of all target object members and their current values. The system should be extensible for future commands and should accept an arbitrary object, such that another developer could insert another object into the system and rely on the command console to get and set the properties correctly.

3395

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Code for Two Classes for Doing Gzip in Memory?

2814

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write a program using virtual function to find the transposing of a square matrix?

2841

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Teta-Omeg-Big-Oh Show that f(n) = n2 + 3n3 is ;(n3).

3190

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Given a table of the form: Product Sold on A 1/1/1980 B 1/1/1980 C 1/1/1980 A 1/1/1980 B 1/1/1980 C 2/1/1980 A 2/1/1980 There are 30 products and 10,000 records of such type. Also the month period during which sales happened is given to u. Write the program to display the result as: Product Month No. of copies A January 12 A February 15 A March 27 B January 54 B February 15 B March 10 C January 37

2049

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Code for Small C++ Class to Transform Any Static Control into a Hyperlink Control?

2562

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Write a C/C++ program that connects to a MySQL server and displays the global TIMEZONE.

4577

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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?

2915

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i really need help about this.. write a program to display the set of odd and even numbers separately. find the highest and lowest value of the given numbers.

1968

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U hv to enter a range from a and b and search hw many no. of times a pattern n. occurs between the range a and b. Eg :i/p:enter range :0 100 Enter pattern: 13 o/p: the no. times 13 occurred betwwn 0 to 100:1 Eg :i/p:enter range :100 1000 Enter pattern: 13 o/p: the no. times 13 occurred betwwn 100 to 1000: (in this 13,113,131,132,133…139,213,313,…913 all these will be counted)

2125

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How to swap two ASCII numbers?

2449

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Definition of priority queue was given. We have to implement the priority queue using array of pointers with the priorities given in the range 1..n. The array could be accessed using the variable top. The list corresponding to the array elements contains the items having the priority as the array index. Adding an item would require changing the value of top if it has higher priority than top. Extracting an item would require deleting the first element from the corresponding queue. The following class was given: class PriorityQueue { int *Data[100]; int top; public: void put(int item, int priority); // inserts the item with the given priority. int get(int priority); // extract the element with the given priority. int count(); // returns the total elements in the priority queue. int isEmpty(); // check whether the priority queue is empty or not. }; We had to implement all these class functions.

4396

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output for printf("printf");

1985

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

1945

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