# Problem Solving Through Programming In C Week 6

Session: JULY-DEC 2023

Course Name: Problem Solving Through Programming In C

#### These are Problem Solving Through Programming In C Assignment 6 Answers

Q1. What is an array in C?
a) A collection of similar data elements with the same data type.
b) A built-in function that performs mathematical calculations.
c) A keyword used for declaring variables.
d) A data type used to store characters only.

Answer: a) A collection of similar data elements with the same data type.

Q2. What is the index of the first element in an array?
a) 0
b) 1
c) -1
d) The index can vary depending on the array size.

Q3. Which loop is commonly used to iterate through all elements of an array in C?
a) for loop
b) while loop
c) do-while loop
d) switch loop

These are Problem Solving Through Programming In C Assignment 6 Answers

Q4. An integer array of 15 elements is declared in a C program. The memory location of the first byte of the array is 2000. What will be the location of the 13th element of the array? Assume int takes 2 bytes of memory.
a) 2013
b) 2024
c) 2026
d) 2030

Q5. How can you find the sum of all elements in a 1D array “arr” with 5 elements using loop in C?
a) sum= arr[0] + arr[1] + arr[2] + arr[3] + arr[4];
b) sum = arr[5];
c) for (int i = 0; i <= 5; i++) { sum += arr[i]; }
d) for (int i = 0; i < 5; i++) { sum += arr[i]; }

Answer: d) for (int i = 0; i < 5; i++) { sum += arr[i]; }

Q6. What is the output of the following code?
a) 1 3 5
b) 1 2 3 4 5
c) 1 2 3
d) 1 4

These are Problem Solving Through Programming In C Assignment 6 Answers

Q7. What will be the output?
a) i=5, j=5, k=2
b) i=6, j=5, k=3
c) i=6, j=4, k=2
d) i=5, j=4, k=2

Q8. What will be the output after execution of the program?
a) 1
b) 2
c) 3
d) 4

Q9. What will be the output?

These are Problem Solving Through Programming In C Assignment 6 Answers

Q10. Find the output of the following C program
a) 5, 4
b) 5, 5
c) 4, 4
d) 3, 4

### Assignment

Question 1
Write a C Program to find Largest Element of an Integer Array.
Here the number of elements in the array ‘n’ and the elements of the array is read from the test data.
Use the printf statement given below to print the largest element.
printf(“Largest element = %d”, largest);

Solution:

``````    largest = arr[0];
for(i = 1; i < n; ++i)
{
if(largest < arr[i])
largest = arr[i];
}
printf("Largest element = %d", largest);
return 0;
}``````

Question 2
Write a C Program to print the array elements in reverse order (Not reverse sorted order. Just the last element will become first element, second last element will become second element and so on)
Here the size of the array, ‘n’ and the array elements is accepted from the test case data. The last part i.e. printing the array is also written.
You have to complete the program so that it prints in the reverse order.

Solution:

``````int j, temp;
j = i - 1;   // last Element of the array
i = 0;       // first element of the array

while(i < j)
{
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
i++;
j--;
}``````

Question 3
Write a C program to read Two One Dimensional Arrays of same data type (integer type) and merge them into another One Dimensional Array of same type.

Solution:

``````for (i = 0; i < n2; i++)
scanf("%d", &arr2[i]);

int j;
for(i=0;i<n1;++i)
array_new[i]=arr1[i];

size =  n1 + n2;

for(i=0, j=n1; j<size && i<n2; ++i, ++j)
array_new[j] = arr2[i];``````

Question 4
Write a C Program to delete duplicate elements from an array of integers.

Solution:

``````int j, k;
for(i = 0; i < size; i++) {
for(j = i + 1; j < size;) {
if(array[j] == array[i]) {
for (k = j; k < size; k++) {
array[k] = array[k + 1];
}
size--;
} else
j++;
}
}``````

These are Problem Solving Through Programming In C Assignment 6 Answers

Session: JAN-APR 2023

Course Name: Problem Solving Through Programming In C

These are Problem Solving Through Programming In C Assignment 6 Answers

#### Q1. Which statement is correct?a) An index or subscript in array is a positive integerb) An index or subscript in array is a positive or negative integerc) An index or subscript in array is a real numberd) None of the above

Answer: a) An index or subscript in array is a positive integer

Q2. Which of the following is the correct way to declare a one-dimensional integer array named “myArray” with 5 elements in C?
a) int myArray(5);
b) int myArray[5];
c) int myArray = [5];
d) int myArray = {5};

These are Problem Solving Through Programming In C Assignment 6 Answers

Q3. The elements of array are stored in contiguous memory due to
a) This way computers can keep track of only the address of the first element and the addresses of other elements can be calculated.
b) The architecture of computer does not allow arrays to store other than serially
c) Both (a) and (b) are true
d) None of these are true

Answer: a) This way computers can keep track of only the address of the first element and the addresses of other elements can be calculated.

Q4.

a) 0
b) 1
c) 5
d) The code will result in a runtime error.

Answer: d) The code will result in a runtime error.

These are Problem Solving Through Programming In C Assignment 6 Answers

Q5.

Q6. What is the maximum dimension of an array allowed in C?
a) 10
b) 100
c) 1000
d) No such limit exists

Answer: d) No such limit exists

These are Problem Solving Through Programming In C Assignment 6 Answers

Q7.

a) 1 followed by two garbage values
b) 1 1 1
c) 1 0 0
d) 0 0 0

Q8. A one-dimensional array X has indices 1….50. Each element is an int. The array is stored at location 1000 decimal. The starting address of X[27] is ______(assume int takes 4 bytes).

These are Problem Solving Through Programming In C Assignment 6 Answers

Q9. Which of the following statements finds the minimum value in an integer array named “myArray” in C?

Q10. What will be the output?
a) i=5, j=5, k=2
b) i=6, j=5, k=3
c) i=6, j=4, k=2
d) i=5, j=4, k=2

These are Problem Solving Through Programming In C Assignment 6 Answers

### Problem Solving Through Programming In C Programming Assignment

Question 1

Write a C Program to find Largest Element of an Integer Array.
Here the number of elements in the array ‘n’ and the elements of the array is read from the test data.
Use the printf statement given below to print the largest element.
printf(“Largest element = %d”, largest);

Solution:

``````largest = arr[0];
for(i = 1; i< n; ++i)
{
if(largest <arr[i])
largest = arr[i];
}
printf("Largest element = %d", largest);
return 0;
}``````

Question 2

Write a C Program to print the array elements in reverse order (Not reverse sorted order. Just the last element will become first element, second last element will become second element and so on)
Here the size of the array, ‘n’ and the array elements is accepted from the test case data.
The last part i.e. printing the array is also written.
You have to complete the program so that it prints in the reverse order.

Solution:

``````int j, temp;
j = i - 1;
i = 0;
while (i<j)
{
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
i++;
j--;
}``````

These are Problem Solving Through Programming In C Assignment 6 Answers

Question 3

Write a C program to read Two One Dimensional Arrays of same data type (integer type) and merge them into another One Dimensional Array of same type.

Solution:

``````int j;
for (i=0;i<n1;++i)
array_new[i]=arr1[i];
size =  n1 + n2;
for(i=0, j=n1; j<size && i<n2; ++i, ++j)
array_new[j] = arr2[i];``````

Question 4

C Program to delete an element from a specified location of an Array starting from array[0] as the 1st position, array[1] as second position and so on.

Solution:

``````for (i = pos - 1; i < num - 1; i++)
{
array[i] = array[i+1];
}
num--;``````

These are Problem Solving Through Programming In C Assignment 6 Answers

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Session: JULY-DEC 2022

Course Name: Problem Solving Through Programming In C NPTEL

#### These are Problem Solving Through Programming In C Assignment 6 Answers

Q1. What is the right way to initialise an array in C?
a) int ar{}= {1,2, 5,6,9}
b) int ar[5]= {1,2, 5,6,9}
c) int ar {5} = {1,2, 5,6,9}
d) int ar()= {1,2, 5,6,9}

Q2. An integer array of dimension 10 is declared in a C program. The memory location of the first byte of the array is 1000. What will be the location of the 9th element of the array? (Assume integer takes 4 bytes of memory and the element stored at 1000 is identified as 1st element)
a) 1028
b) 1032
c) 1024
d) 1036

Q3. What will be the output after execution of the program?

These are Problem Solving Through Programming In C Assignment 6 Answers

Q4. Which of the statements is/are correct?
a) An array may contain more than one element
b) All elements of array have to be of same data type
c) The size of array has to be declared upfront
d) All of the above

Q5. What actually gets passed when you pass an array as an argument to a function
a) Value of elements in array
b) First element of the array
c) Base address of the array
d) Address of the last element of array

Q6. Find the output of the following C program

These are Problem Solving Through Programming In C Assignment 6 Answers

Q7. What will be the output?

Q8. An array of the void data type
a) can store any data-type
b) only stores element of similar data type to first element
c) acquires the data type with the highest precision in it
d) It is not possible have an array of void data type

Q9. What will be the output?

These are Problem Solving Through Programming In C Assignment 6 Answers

Q10. How many ‘a’ will be printed when the following code is executed?

These are Problem Solving Through Programming In C Assignment 6 Answers

Question 1
Write a C Program to find Largest Element of an Integer Array.
Here the number of elements in the array ‘n’ and the elements of the array is read from the test data.
Use the printf statement given below to print the largest element.
printf(“Largest element = %d”, largest);

Solution:

``//Code``

These are Problem Solving Through Programming In C Assignment 6 Answers

Question 2
Write a C Program to print the array elements in reverse order (Not reverse sorted order. Just the last element will become first element, second last element will become second element and so on) Here the size of the array, ‘n’ and the array elements is accepted from the test case data. The last part i.e. printing the array is also written.
You have to complete the program so that it prints in the reverse order.

Solution:

``//Code``

These are Problem Solving Through Programming In C Assignment 6 Answers

Question 3
Write a C program to read Two One Dimensional Arrays of same data type (integer type) and merge them into another One Dimensional Array of same type.

Solution:

``//Code``

These are Problem Solving Through Programming In C Assignment 6 Answers

Question 4
Write a C Program to delete duplicate elements from an array of integers.

Solution:

``//Code``

These are Problem Solving Through Programming In C Assignment 6 Answers

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