DXC Technology Automata Fix Questions

10 May 2023

Q1) Print the Statement [Java Programming]

Debug the error:

The code has been commented. Uncomment the code and debug it.

import java.io.*;

class Main { /*

public static main (String[] args) {

System.out.println("CTS Automata");

} */

}

Sample Output:

CTS Automata

Case 1

Input (stdin)

Output (stdout)

CTS Automata

Solution :

import java.io.*;

class Main {

public static void main (String[] args) {

System.out.println("CTS Automata");

}

}

Q2) Array matrix of dimension [Java Programming]

The function calculateMatrixSum(int matrix, int m, int n) accepts a two dimensional array matrix of dimensions m, n as input and returns the sum of odd elements whose i and j index are same. The function compiles fine but fails to return the desired result for some test cases.

The code has been commented. Uncomment the code and debug it.

import java.util.*;

class Main {

static int calculateMatrixSum(int matrix[][], int m, int n)

{   int sum=0;

/* int i,j,row=m, column=n;

    if((row>0)&&(column>0))

    {

        for(i=0;i<row;i++)

{

for(j=0;j<column;j++)

            {

                if(i==j)

                {

                    if( matrix[i][j] % 2 == 0)

                    sum+=matrix[i][j];

                }

            }

        }

    } */

    return sum;

}

public static void main (String[] args) {

Scanner sc=new Scanner(System.in);

       int rows=sc.nextInt();

       int columns=sc.nextInt();

       int twoD[][]=new int[rows][columns];

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

         {

            for(int j=0; j<columns;j++)

            {

                twoD[i][j]=sc.nextInt();

            }

         }

         System.out.println(calculateMatrixSum(twoD,rows,columns));

}

}

Sample input :

2

2

7 2

2 3

Output:

10

Case 1

Input (stdin)

2

2

7 2

2 3

Output (stdout)

10

Solution:

import java.util.*;

class Main {

static int calculateMatrixSum(int matrix[][], int m, int n)

{

    int i,j,sum=0,row=m, column=n;

    if((row>0)&&(column>0))

    {

        for(i=0;i<row;i++)

{

for(j=0;j<column;j++)

            {

                if(i==j)

                {

                    if( matrix[i][j] % 2 != 0)

                    sum+=matrix[i][j];

                }
}

        }

    }

    return sum;

}

public static void main (String[] args) {

Scanner sc=new Scanner(System.in);

       int rows=sc.nextInt();

       int columns=sc.nextInt();

       int twoD[][]=new int[rows][columns];

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

         {

            for(int j=0; j<columns;j++)

            {

                twoD[i][j]=sc.nextInt();

            }

         }

         System.out.println(calculateMatrixSum(twoD,rows,columns));

}

}

Q3) Display Characters from A to Z [Java Programming]

Write a Program to Display Characters from A to Z using loop.

The code has been commented. Uncomment the code and debug it.

import java.util.Scanner;

class Main { /*

    public static void main(String[] args) {

        char c;

        for(c = 'A'; c < 'Z'; ++c)

            System.out.println(c + " ");

    } */

}

Sample Output:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Case 1

Input (stdin)

Output (stdout)

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Solution:

import java.util.Scanner;

class Main {

    public static void main(String[] args) {

        char c;

        for(c = 'A'; c <= 'Z'; ++c)

            System.out.print(c + " ");

    }

}

Q4) Eliminate all the vowels [C++ Programming]

Given a string str, write a program to eliminate all the vowels from the given string. The list of vowels in the English alphabet is : {a,e,i,o,u,A,E,l,0.U}. The Input to the function eliminate Vowel String shall consist of a string str (containing only English letters).

EXAMPLE:

Input =”abcdefghijklmnopqrstuvwxyz”

0utput="bcdfghjklmnpqrstvwxyz”

USEFUL COMMANDS:

Strlen() is used to calculate the length of the string.

The statement -

int len = strlen(str); Returns the length of the string str.

#include<iostream>

#include<stdlib.h>

#include<string.h>

using namespace std;

void consonants(char *str)

{

    //Type your code here

}

int main()

{

    char str[100];

    scanf("%s",str);

    consonants(str);

    return 0;

}

Sample Input:

bacdefghijklmnopgrstu

Output:

Bcdfghjklmnpqrst

Case 1

Input (stdin)

abcdefghijklmnopqrstuvwxyz

Output (stdout)

bcdfghjklmnpqrstvwxyz

Solution:

#include<iostream>

#include<stdlib.h>

#include<string.h>

using namespace std;

void consonants(char *str)

{

    int len = strlen(str);

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

    {

    if(str[i]=='a'||str[i]=='e'||str[i]=='i'||str[i]=='o' || str[i]=='u'||str[i]=='A'||str[i]=='E‘ ||str[i]=='I'||str[i]=='O'||str[i]=='U')

            {

                continue;

            }

            else

                printf("%c",str[i]);

    }

}

int main()

{

    char str[100];

    scanf("%s",str);

    consonants(str);

    return 0;

}

Q5) Find the Pattern[C Programming]

Write a program to print the following output.

#include<stdio.h>

int pattern(int n)

{

   //Your code goes here

}

void main()

{

    int n;

    scanf("%d",&n);

    pattern(n);

}

Sample Input:

5

Output:

11111

1     1

1     1

1     1

11111

Case 1

Input (stdin)

5

Output (stdout)

11111

1   1

1   1

1   1

11111

Solution:

#include<stdio.h>

int pattern(int n)

{

    int i,j;

    for(i=1;i<=n;i++)

    {

        for(j=1;j<=n;j++)

        {

            if(i==1||i==n||j==1||j==n)

                printf("1");

            else

                printf(" ");

        }

        printf("\n");

    }

}

void main()

{

    int n;

    scanf("%d",&n);

    pattern(n);

}

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