Programs Questions and Answers
Question :: 1
Write a program to print next to the last word of a sentence.
Input : What is your name
Output : your
Answer In:
C
C++
JAVA
PHP
PYTHON
<p>import java.io.BufferedReader;<br />
import java.io.IOException;<br />
import java.io.InputStreamReader;</p>
<p>public class StringWordIBM <br />
{</p>
<p> public static void main(String[] args) throws IOException <br />
{<br />
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));<br />
String str;<br />
System.out.println("Enter the String : ");<br />
str=br.readLine();<br />
System.out.println(str);<br />
String s[] = str.split(" ");<br />
System.out.println("Splitted string : ");<br />
for(int i=0;i<s.length;i )<br />
{<br />
System.out.println(s[i]);<br />
<br />
}<br />
System.out.println("Second Last word of String is : " s[s.length-2]);<br />
}<br />
<br />
}</p>
Question :: 2
Write an efficient program to covert decimal number into binary number
Input : NA
Output : NA
Answer In:
C
C++
PHP
#include<iostream>
using namespace std;
int main()
{
long bin, dec = 0, rem, num, base = 1;
cout << "Enter the binary number(1s and 0s) : ";
cin >> num;
bin = num;
while (num > 0)
{
rem = num % 10;
dec = dec + rem * base;
base = base * 2;
num = num / 10;
}
cout << "The decimal equivalent of " << bin << " : " << dec << endl;
return 0;
}
Tags:TCS
Question :: 3
Write code for swapping two variables without using 3rd variable.
Input : NA
Output : NA
Answer In:
C
C++
PHP
#include<stdio.h>
#include<conio.h>
# include <iostream>
using namespace std;
main()
{
int a=10, b=20;
clrscr();
cout<<"Before swap is:"<<a<<"\t"<<b;
a=a+b;//a=30 (10+20)
b=a-b;//b=10 (30-20)
a=a-b;//a=20 (30-10)
cout<<"\nAfter swap" <<a<<"\t"<<b;
getch();
}
Tags:Wipro TCS Syntel Inc. Sapient Capgemini
Question :: 4
Write a program to print prime numbers upto 10.
Input : NA
Output : NA
Answer In:
C
C++
PHP
#include<stdio.h>
# include <iostream>
using namespace std;
void main()
{
int n,i,j,ct=0;
cout << "Enter any number \n";
cin>>n;
cout << " All prime numbers are -\n";
for(i=2;i<=n;i++)
{
ct=0;
for(j=2;j<i;j++)
{
if(i%j==0)
{
ct=1;
break;
}
}
if(ct==0)
{
cout << i;
}
}
getch();
}
Tags:Wipro TCS Syntel Inc.
Question :: 5
Write a program to print the nth fibonacci number.
Input : NA
Output : NA
Answer In:
C
<p>#include<stdio.h><br />
#include<stdlib.h><br />
int main(int varc,char *varg[])<br />
{<br />
int n=atoi(varg[1]);<br />
int n1=0,n2=1,n3,i,sum;<br />
if(a==1)<br />
printf("%d",0);<br />
if(a==2)<br />
printf("%d",1);<br />
if(a>2)<br />
{<br />
for(i=3;i<=n;i )<br />
{<br />
n3=n2 n1;<br />
n1=n2;<br />
n2=n3;<br />
printf("%d ",n3);<br />
}<br />
}<br />
return 0;<br />
}</p>
Tags:Cisco TCS Syntel Inc.
Question :: 6
Write a program to print odd number in descending order from 1-10.
Input : NA
Output : NA
Answer In:
C
<p>#include<stdio.h><br />
#include<conio.h><br />
void main()<br />
{<br />
int i,j=2;<br />
for(i=10;i>=1;i--)<br />
{<br />
if(i%j==1)<br />
{<br />
printf("%d",i);<br />
}<br />
}<br />
}</p>
Tags:TCS
Question :: 7
Write a Program to generate random numbers.
Input : NA
Output : NA
Answer In:
C
#include <stdio.h>
#include <stdlib.h>
int main() {
int c, n;
printf("Ten random numbers in [1,100]\n");
for (c = 1; c <= 10; c++) {
n = rand() % 100 + 1;
printf("%d\n", n);
}
return 0;
}
Tags:TCS
Question :: 8
Write a program using command line argument to input a word and check whether it is palindrome or not.
Input : NA
Output : NA
Answer In:
C
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void isPalindrome(char str[])
{
int l = 0;
int h = strlen(str) - 1;
while (h > l)
{
if (str[l++] != str[h--])
{
printf("%s is Not Palindromen \r\n", str);
return;
}
}
printf("%s is palindromen\r\n", str);
}
int main(int argc, char * argv[])
{
if (argc == 1 || argc > 2)
{
printf("Enter String \r\n");
exit(0);
}
isPalindrome(argv[1]);
return 0;
Tags:TCS
Question :: 9
Write a C program which will check whether a given number N is prime or not.
If the number N is prime, then find its square root and print that value to stdout as floating point number with exactly 2 decimal precision.
If the given number N is not prime, then print the value 0.00 to stdout.
The given number N will be a positive non Zero integer and it will be passed to the program using the first command line parameter. Other than the floating point result, no other information should be printed to stdout.
Input : NA
Output : NA
Answer In:
C
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
int main(int argc, char * argv[])
{
int n, i, flag = 0;
double x;
if (argc == 1 || argc > 2)
{
printf("Enter String \r\n");
exit(0);
}
n = atoi(argv[1]);
x = n;
for(i=2; i<= n/2; ++i)
{
if(n%i == 0)
{
flag=1;
break;
}
}
if (flag==0)
printf("%.2lf \r\n", sqrt (x) );
else
printf("%.2lf \r\n",0.00);
return 0;
}
Tags:TCS
Question :: 10
Write a program using command line argument to input two number and Calculate the Sum of numbers.
Input : NA
Output : NA
Answer In:
C
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char * argv[])
{
int x,y;
if (argc == 1 || argc > 3)
{
printf("Enter Two Number\r\n");
exit(0);
}
x=atoi(argv[1]);
y=atoi(argv[2]);
printf("\nSum of two number %d and %d is : %d\r\n",x,y,x+y) ;
return 0;
}
Tags:TCS
