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    Nirma University: Institute of Technology

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    Aaftab Vhora
    This document is an exam for a computer programming course. It contains 5 questions assessing various programming concepts: 1) Differentiating between compilers and interpreters, file input/output in C, string manipulation using null characters, and local vs global variables. 2) Tracing code snippets involving logical operators, break statements, switch cases, string manipulation, and function prototypes. 3) Drawing a flowchart to find perfect numbers within a given range by taking input from the user. 4) Writing a program to reverse a 1D array using a function or to print the Fibonacci series using recursion by taking input from the user. 5) Writing a program to calculate the time difference between two

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    Nirma University: Institute of Technology

    Uploaded by

    Aaftab Vhora
    312 views3 pages
    This document is an exam for a computer programming course. It contains 5 questions assessing various programming concepts: 1) Differentiating between compilers and interpreters, file input/output in C, string manipulation using null characters, and local vs global variables. 2) Tracing code snippets involving logical operators, break statements, switch cases, string manipulation, and function prototypes. 3) Drawing a flowchart to find perfect numbers within a given range by taking input from the user. 4) Writing a program to reverse a 1D array using a function or to print the Fibonacci series using recursion by taking input from the user. 5) Writing a program to calculate the time difference between two

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    Nirma_university_c_paper__February_2021

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    This document is an exam for a computer programming course. It contains 5 questions assessing various programming concepts: 1) Differentiating between compilers and interpreters, file input/output in C, string manipulation using null characters, and local vs global variables. 2) Tracing code snippets involving logical operators, break statements, switch cases, string manipulation, and function prototypes. 3) Drawing a flowchart to find perfect numbers within a given range by taking input from the user. 4) Writing a program to reverse a 1D array using a function or to print the Fibonacci series using recursion by taking input from the user. 5) Writing a program to calculate the time difference between two

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    312 views3 pages

    Nirma University: Institute of Technology

    Uploaded by

    Aaftab Vhora
    This document is an exam for a computer programming course. It contains 5 questions assessing various programming concepts: 1) Differentiating between compilers and interpreters, file input/output in C, string manipulation using null characters, and local vs global variables. 2) Tracing code snippets involving logical operators, break statements, switch cases, string manipulation, and function prototypes. 3) Drawing a flowchart to find perfect numbers within a given range by taking input from the user. 4) Writing a program to reverse a 1D array using a function or to print the Fibonacci series using recursion by taking input from the user. 5) Writing a program to calculate the time difference between two

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    Download as pdf or txt
    of 3

    2CS101 Computer Programming

    Nirma University
    Institute of Technology
    Semester End Examination, February 2021
    B. Tech in CSE/EC/IC, Semester I
    2CS101: Computer Programming

    Time: 90 Minutes Max Marks: 40


    Instructions:
    i) Attempt all questions.
    ii) Figures to the right indicate full marks.
    iii) Assume necessary data wherever required.

    Q.1 Do as directed: [10]


    (i) Differentiate between compiler and interpreter. 2
    (ii) Discuss how to open and close a file in C language with 2
    illustration.
    (iii) Character strings are automatically terminated by the null 2
    character. Explain how this feature helps in string manipulation.
    (iv) Differentiate between local and global variable. Illustrate with help 4
    of example.
    OR
    (iv) Analyze a situation where goto statement should be used instead 4
    of using break. Explain by giving suitable example.

    Q.2 Trace the code snippet given and show the output and tracing. In [10]
    case of error, mention the error and justify it. Assume header files
    are included.
    (i) main( ) 2
    {
    int i = 4, j = 0, k = 0, y, z ;
    y = i + 5 && j + 1 || k + 2 ;
    z = i + 5 || j + 1 && k + 2 ;
    printf ( "\ny = %d z = %d", y, z ) ;
    }
    (ii) main( ) 2
    {
    int x = 4, y = 0, z ;
    while ( x >= 0 )
    {
    if ( x == y )
    break ;
    else
    printf ("\n%d %d", x, y ) ;
    x-- ;
    y++ ;
    }
    }
    Page 1 of 3
    2CS101 Computer Programming
    (iii) main( ) 2
    {
    int k ;
    float j = 2.0 ;
    switch ( k = j + 1 )
    {
    case 1: printf("\n Free");
    case 2: printf("\n Escaped");
    case 3: printf("\n Trapped") ;
    default: printf("\n Caught!") ;
    }
    }
    (iv) main() 2
    {
    char p[20];
    char s[] = "Nirma";
    int length = strlen(s);
    int i;
    for (i = 0; i < length; i++)
    p[i] = s[length - i];
    printf("%s", p);
    }
    (v) int func(int, int); 2
    main( )
    {
    printf("%d", func(10,20));
    }
    int func(int a, int b)
    {
    int a;
    a = 20 + b;
    return a;
    }

    Q.3 Draw flowchart to find the perfect numbers within a given range. [6]
    Perfect number, a positive integer that is equal to the sum of its
    proper divisors. For example, 6 is a perfect number, which is the
    sum of 1, 2, and 3. Take starting range and ending range from
    user. For example:
    Input the starting range or number : 1
    Input the ending range of number : 50
    The Perfect numbers within the given range : 6 28

    Q.4 Write a C program for reversing 1-D array elements using [6]
    function. Pass the array to a user defined function, reverse the
    array elements in the array itself and print the reversed array
    from the main function. All the values needed should be taken
    from user.
    OR
    Q.4 Write a program in C to print Fibonacci series using recursive [6]
    Page 2 of 3
    2CS101 Computer Programming
    function (recursion). For example,
    Input number of terms for the Series : 10
    The Series are :
    1 1 2 3 5 8 13 21 34 55

    Q.5 Write a C program to calculate time difference between two time [8]
    periods using structure and pointer. Create a structure for
    denoting a time period (hours, minutes and seconds). Make a
    pointer that points to the structure. Use pointers to access
    structure members and calculate the difference. Display the
    difference between two time periods. All the values needed should
    be taken from user. Perform validations to enter correct time
    period.

    *******************************

    Page 3 of 3

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