Solved Puzzles - Page 44 of 94

Output of the recursive program

May 6, 2014 by puzzler 1 Comment

what will be the output of this program

void print (int n)
{
	if (n>0)
	{
		printf(“hello”);
		print(n-1);
	}
	printf(“world”);
}

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How many toys?

May 1, 2014 by Rajat 3 Comments

Number Puzzle #90

A man had Rs.900 and brought some toys with all the money. Out of which 5 toys were defected. He sold all the remaining toys by increasing the price by Rs.2 and made a profit of Rs.80.
What is the no.of initial toys and the initial cost of toys?

Check your answer, Number of Toys:-

Check your answer, Initial Cost:-

Click here to See Solution

Let assume he had x toys and bought it for Rs.y per piece.
Now, we can form these two equations from these
x*y = 900;//Total cost
(y+2)(x-5) = 900+80;//as he mad profit of Rs.80 by selling x-5 toys in Rs.(y+2).

xy + 2x -5y -10= 900+80;
2x-5y = 90;
2x-5*900/x = 90
2x^2 -4500 = 90x;
x^2 -45x – 2250 = 0;
(x-75)(x+30) = 0;
x = 75 and x =–30, as number of toys cant be negative, initial number of toys were 75.
Initial Cost = 900/75 = Rs.12.

Correct the spellling

April 30, 2014 by Bhawana 7 Comments

We see these 4 things daily

pturecmo
bokeacfo
ihbugtlet
tpsasurl

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Two Numbers?

April 29, 2014 by puzzler 8 Comments

There is a one person who have two numbers, he tells sum to the person S and product of those numbers to P.

Now there is this conversion between S and P.

S: I don’t know what are the numbers.

P: I also don’t know what are the numbers.

S: Now i know what are the numbers.

P: Now i also know what are the numbers.

Assuming S and P to be very wise and good in mathematics, What are those two numbers?
Note: Numbers are greater than 0.

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Full Binary Tree Solution – Google Code Jam

April 27, 2014 by puzzler Leave a Comment

This is the second problem in Google Code Jam 2014, Round 1A

This problem is based on all time favorite of interviewers Binary Tree, you need to find out the minimum number of node to delete to make the given binary tree(in graph form, for any connection in X and Y, you can consider X as child of Y or vice verse) as Full Binary Tree.
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