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Sunday, 30 June 2019
Aptitude Hack#128(1-7-19)
Question:
Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.
A. 12 sec
B. 24 sec
C. 48 sec
D....
Saturday, 29 June 2019
Friday, 28 June 2019
Monday, 24 June 2019
Aptitude Hack#121(24-6-19)
Question:
Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how many notebooks were distributed?
A....
Sunday, 23 June 2019
Saturday, 22 June 2019
Friday, 21 June 2019
Thursday, 20 June 2019
Wednesday, 19 June 2019
Tuesday, 18 June 2019
Monday, 17 June 2019
Sunday, 16 June 2019
Saturday, 15 June 2019
Friday, 14 June 2019
Thursday, 13 June 2019
Aptitude Hack#110(13-6-19)
Question:
Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?
A. 1 hour
B. 2 hours
C. 6 hours
D. 8...
Wednesday, 12 June 2019
Tricky Interview#1 Solution
Question:
W A C Program That Prints All The vowels Given In String Without Using IF and Break Statements In program?
Solution:
//Credits Gaurav and Swathi H I
#include<stdio.h>
#include<stdlib.h>
main(){
char str[10];
scanf("%s",str);
int i=0;
while(str[i]!='\0'){
(str[i]=='a'|str[i]=='e'|str[i]=='i'|str[i]=='o'|str[i]=='u')? printf("%c",str[i]):printf("");
i++;
}
}
Alternative...
Tuesday, 11 June 2019
Aptitude Hack#108(11-6-19)
Question:
A drinks machine offers three selections - Tea, Coffee or Random but the machine has been wired up wrongly so that each button does not give what it claims. If each drink costs 50p, how much minimum money do you have to put into the machine to work out which button...
Monday, 10 June 2019
Tricky Interview#6
Question:
WAC PROGRAM THAT GIVES THE SIZE OF STRING WITHOUT USING ANY FUNCTION(PRE DEFINED OR USER DEFINED), NO LOOPS AND NO RECURSION.
Solution:
#include<stdio.h>
void main()
{
int a[100],n;
printf("Enter the String\n");
scanf("%s",a);
n=printf("%s\n",a);
printf("%d",n-1);
}
...
Tricky Interview#5
Question:
How would you write a C program to print 1 to 100 without loop, recursion, or goto?
Solution:
#include<stdio.h>
void hundred() { static int i=1; printf("%d\n",i++); }
void twenty(){ hundred(),hundred(),hundred(),hundred(),hundred(); }
void four() { twenty(),twenty(),twenty(),twenty(),twenty(); }
int main()
{
...
Aptitude Hack#107(10-6-19)
Question:
If there are 51 rupees consisting of coins of 1 rupee, 50 paise, and 25 paise. Number
of 50 paise coin is double that of number of 1 rupee coin and four times that of 25
paise, and then what is the number of 50 paise coins in the collection.
(A)48
(B)51
(C)12
(D)...
Sunday, 9 June 2019
Aptitude Hack#106(9-6-19)
Question:
Mr. Das decided to walk down the escalator of a mall. He found that if he walks down
26 steps, he requires 30seconds to reach the bottom. However, if he steps down 34
stair He would only require 18 seconds to get to the bottom. If the time is measured
from the moment...
Saturday, 8 June 2019
Friday, 7 June 2019
Thursday, 6 June 2019
Wednesday, 5 June 2019
Aptitude Hack#102(5-6-19)
Question:
Ram and Hari started from A and B, towards B and A at 6.00 am and 7.00 am respectively. They meet each other at 9.00 am and continued towards their respective destinations. Ram reaching B turns back and catches up with Hari before Hari reaches A at 11.00 am. At what...
Tuesday, 4 June 2019
Monday, 3 June 2019
Aptitude Hack#100(3-6-19)
Question:
A person has the capability of thinking 100 lines of code in five minutes and can type 100 lines of code in 10 minutes. He takes a break for five minutes after every ten minutes. How many lines of codes will he complete typing after an hour?
(a) 100
(b) 250
(c)...
Sunday, 2 June 2019
Program for Shell Sort in C
Shell short is an improved and efficient version of the insertion sort.
In this algorithm, we sort the pair of elements that are far apart by gap h.
The process is repeated by reducing h until it becomes 1.
Shell Sort
Algorithm
Following is the algorithm for...
Print “javaabhigyan” with empty main() in C
Write a program that prints “javaabhigyan” with empty main() function.You are not allowed to write anything in main().
1.) One way of doing this is to apply GCC constructor attribute to a function so that it executes before main()
#include <stdio.h>
/* Apply the constructor attribute to myStartupFun()
...
Compute average of two numbers without overflow
Given two numbers, a and b. Compute the average of the two numbers.
The well know formula (a + b) / 2 may fail at the following case :
If, a = b = (2^31) – 1; i.e. INT_MAX.
Now, (a+b) will cause overflow and hence formula (a + b) / 2 wont work
Improved Formula that does not cause overflow :
Average = (a / 2) + (b / 2) + (((a % 2) + (b % 2)) /...
