Practical 5 PPS

Write a program to read marks from keyboard and your program should display equivalent grade according to following table (if else ladder)

Marks Grade

100 - 80 Distinction

79 - 60 First Class

59 - 40 Second Class

< 40 Fail

#include <stdio.h>

int main()

{

    int marks;

    printf("\n Enter Marks between 0-100 :");

    scanf("%d", &marks);

    if (marks > 100 || marks < 0)

    {

        printf("\n Your Input is out of Range");

    }

    else if (marks >= 80)

    {

        printf("\n You got Distinction");

    }

    else if (marks >= 60)

    {

        printf("\n You got First Class");

    }

    else if (marks >= 40)

    {

        printf("\n You got Second Class");

    }

    else

    {

        printf("\n You got Fail");

    }

    return 0;

}

Write a C program demonstrate functionality of calculator using switch-case. 

#include <stdio.h>

int main()

{

    char op;

    double first, second;

    printf("Enter an operator (+, -, *, /): ");

    scanf("%c", &op);

    printf("Enter two operands: ");

    scanf("%lf %lf", &first, &second);

    switch (op)

    {

    case '+':

        printf("%.1lf + %.1lf = %.1lf", first, second, first + second);

        break;

    case '-':

        printf("%.1lf - %.1lf = %.1lf", first, second, first - second);

        break;

    case '*':

        printf("%.1lf * %.1lf = %.1lf", first, second, first * second);

        break;

    case '/':

        printf("%.1lf / %.1lf = %.1lf", first, second, first / second);

        break;

    // operator doesn't match any case constant

    default:

        printf("Error! operator is not correct");

    }

    return 0;

}

Write a C program to find factorial of a given number. 

#include <stdio.h>

int main()

{

    int no, fact = 1;

    printf("\n Enter No to find its Factorial : ");

    scanf("%d", &no);

    while (no > 1)

    {

        fact = fact * no;

        no = no - 1;

    }

    printf("\n Factorial of entered no is : %d", fact);

    return 0;

}