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Malavika Nayar 1 year ago

Coding question in TCS off campus phase 2

Find unit digit of x raised to power y
Given two numbers x and y, find unit digit of xy.
Method 1 (Simple) Compute value of xy and find its last digit. This method causes overflow for slightly larger values of x and y.

Method 2 (Efficient)
1) Find last digit of x.
2) Compute x^y under modulo 10 and return its value.

// Efficient C++ program to
// find unit digit of x^y.
#include

using namespace std;

// Returns unit digit of x
// raised to power y

int unitDigitXRaisedY(int x, int y)
{

// Initialize result as 1 to

// handle case when y is 0.

int res = 1;

// One by one multiply with x

// mod 10 to avoid overflow.

for (int i = 0; i < y; i++)

res = (res * x) % 10;

return res;
}

// Driver program

int main()
{

cout

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Hardiksinh Solanki 1 year ago

from where i can clear my quatitative aptitude concepts for tcs offcampus drive

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Abhishek Mukherjee 1 year ago

Seriously,hire some developers to increase the session time.It gets logged off just after 10 min or so and logging in each time is a pain.

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pavan to Sourav 1 year ago

Q. There are a certain number of apples in a big box. A boy takes half apple more, than half of them. A second boy takes half apple more than half of the remaining and so on. After the 7th boy takes his share, the number of apples in the box is 635 less than the original number of apples. If no apple is cut in the entire process, how many apples are left after the fifth boy takes apples from the box?

Option
(1) 9
(2) 19
(3) 39
(4) 59

how you consider x/2+1/2=10? in the solution

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SUSHMA VEERANKI 1 year ago

where can I get solutions for the questions

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Mritunjay Chaurasia 1 year ago

When stuck, generate-and-test

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Mohan kumar 1 year ago

27 Crusoe hatched from a mysterious egg discovered by Angus was growing at a fast pace that Angus had to move it from home to the lake. Given the weights of Crusoe in its first weeks of birth as 5, 15, 30, 135, 405, 1215, 3645. Find the odd weight out.

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Mohan kumar 1 year ago

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Ravindra Reddy 1 year ago

The guilt seeks

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Saranjit Singh 1 year ago

Left neighborhood family.
left neighborhood have one boy, he like account's and another child loves science.
Left neighborhood has one boy.

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VENKATESHBABU JN 1 year ago

There are two people talking to each other, let's call A and B. A told to be that, in your left neighborhood have, one boy he like account's and another child loves science. In your right neighborhood have one 7year old boy and one new born baby. The question is, among them, which family, which one definitely has a girl.. with reason, if you answer correctly and then I will be giving 200₹.

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Faizan Ali 1 year ago

I have got 72 percentile in eLitmus.
Verbal - 52
Quants 50
Logical -92

What are my chances to get a call for the company?

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Anuradha to shakeel 1 year ago

Mam,can you send me this 378 questions on my Emil I'd
My email id is : anuradhavaidya1997@gmail.com

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sandeep 1 year ago

cube is coloured red on one face,green on opposite face,yellow on other face and bule on the face adjacent to yellow face.the other two faces are left uncoloured.is then cut into 125 small cubes of equal size

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sandeep 1 year ago

questions*
1)how many cubes are un coloured on all the faces?
2)how many cubes are coloured blue on one face,red or green on other face and remaining other four faces are uncoloured?
3)how many cubes are coloured red on one face and remaining faces are uncoloured?
4)how many cubes have atleast one green coloured face?
plz send detailed solutions

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Gupta 1 year ago

A clock shows the time 3:30pm

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Ram Kumar 1 year ago

A man donates 30% of his wealth to charity. 30% and 25% of the remaining wealth to his wife and son respectively. The rest he divides equally between his three daughters. One of his daughter gets rs 42 lakh as her share. What was the man's wealth (in rs lakhs)? ............

PLEASE give the solution

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Devendra Marghade 1 year ago

400 lakhs

Let man's wealth=x lakhs.
Then, x(1 - 0.3) [1 - (0.3+.25)]/3 = 42
On solving, we get x=400

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Ram Kumar 1 year ago

45% players played 1st world cup out of which 25 players played in only 1st world cup.57.5% players played 2nd world cup out of which 45 players played only 2nd world cup. 72.5% players played 3rd world cup out of which 110 players played only 3rd world cup. Find the players who played both 1st world cup and 2nd world cup but not 3rd world cup,if total number of players are 400?

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Prerna 1 year ago

40 players played both 1st world cup and 2nd world cup but not 3rd world cup,if total number of players are 400.

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Ram Kumar 1 year ago

Prerna, can u give the full solution....plz

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Prerna 1 year ago

Try it with Venn diagram and you will get it.

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Vaibhav Gupta to alone 1 year ago

just f**k offnvflrdvjordnv;posrjev

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balkaran kumar 1 year ago

If 2x+y = 10, 2y+z = 20 and 2x+z = 30. Where x, y,and z are real number. What is the value of 2x ?

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Devendra Marghade 1 year ago

Ans: 10

2x + y = 10 —(i)
2y + Z = 20 —(ii)
2x + Z = 30 —(iii)
From (i) & (iii), 2x=10-y —(iv) & 2x=30-z —(v)
Now comparing (iv) & (v), 10-y = 30-z
y-z=-20 —(vi)
From (ii) & (vi), we get y=0, z=20
Suvstituting y=0 in (i), we get x=5
Therefore, 2x=10

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sneha dash 1 year ago

1) A die is rolled twice. What is the probability of showing a 3 on the first roll and an odd number on the second roll?
2) In any 15-minute interval, there is a 20% probability that you will see at least one shooting star. What is the probaÂbility that you see at least one shooting star in the period of an hour?
3) Alice has 2 kids and one of them is a girl. What is the probability that the other child is also a girl? You can assume that there is an equal number of males and females in the world.
4) How many ways can you split 12 people into 3 teams of 4?
plz solve

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