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Programming for Problem Solving [ Lab Programs ]


Write a C program, which takes two integer operands and one operator from the user, performs the operation and then prints the result. (Consider the operators +,-,*, /, % and use Switch Statement).

Algorithm

start
	step1: Read num1,num2 and operator
	step2: switch (operator) 
	step3: case '+': result = num1 + num2
	step4: 		Print result
	step5: case '-': result = num1 - num2
	step6: 		Print result
	step7: case '*': result = num1 * num2
	step8: 		Print result
	step9: case '/': if num2 ≠ 0 then
	step10:		result = num1 / num2;
	step11:		Print result
	step12:		else Print "Error: Division by zero is not allowed"
	step13: case '%': if num2 ≠ 0 then
	step14:		result = num1 % num2;
	step15:		Print result
	step16:		else Print "Error: Division by zero is not allowed"
	step17:default: Print "invalid operator" 
	step18:end switch
stop

Flowchart
flowchart for operators +,-,*, /, % and use Switch Statement in c

C Programming
//takes two integer operands and one operator from the user, performs the operation and then prints the result. (Consider the operators +,-,*, /, % and use Switch Statement).
#include <stdio.h>

int main() {
    int num1, num2, result;
    char operator;

    // Take input from the user
    printf("Enter two numbers: ");
    scanf("%d%d", &num1,&num2);
    printf("choose an operator (+,-,*,/,%): ");
    scanf(" %c", &operator);  // Note the space before %c to consume any whitespace

    // Perform the operation based on the operator
    switch (operator) {
        case '+':
            result = num1 + num2;
            printf("%d + %d = %d\n", num1, num2, result);
            break;
        case '-':
            result = num1 - num2;
            printf("%d - %d = %d\n", num1, num2, result);
            break;
        case '*':
            result = num1 * num2;
            printf("%d * %d = %d\n", num1, num2, result);
            break;
        case '/':
            if (num2 != 0) {
                result = num1 / num2;
                printf("%d / %d = %d\n", num1, num2, result);
            } else {
                printf("Error: Division by zero is not allowed.\n");
            }
            break;
        case '%':
            if (num2 != 0) {
                result = num1 % num2;
                printf("%d %% %d = %d\n", num1, num2, result);
            } else {
                printf("Error: Division by zero is not allowed for modulus.\n");
            }
            break;
        default:
            printf("Invalid operator\n");
            break;
    }

    return 0;
}

OUTPUT
Enter two numbers: 55 3
choose an operator (+,-,*,/,%): %
55 % 3 = 1

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1) Write a simple program that prints the results of all the operators available in C (including pre/ post increment , bitwise and/or/not , etc.). Read required operand values from standard input View Solution

2) Write a simple program that converts one given data type to another using auto conversion and casting. Take the values from standard input. View Solution

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1) Write a program for finding the max and min from the three numbers. View Solution

2) Write the program for the simple, compound interest. View Solution

3) Write a program that declares Class awarded for a given percentage of marks, where mark <40%= Failed, 40% to <60% = Second class, 60% to <70%=First class, >= 70% = Distinction.Read percentage from standard input. View Solution

4) Write a program that prints a multiplication table for a given number and the number of rows inthe table. For example, for a number 5 and rows = 3, the output should be:
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5) Write a program that shows the binary equivalent of a given positive number between 0 to 255 View Solution

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1) A building has 10 floors with a floor height of 3 meters each. A ball is dropped from the top of the building. Find the time taken by the ball to reach each floor. (Use the formula s = ut+(1/2)at^2where u and a are the initial velocity in m/sec (= 0) and acceleration in m/sec^2 (= 9.8 m/s^2)). View Solution

2) Write a C program, which takes two integer operands and one operator from the user, performs the operation and then prints the result. (Consider the operators +,-,*, /, % and use Switch Statement) View Solution

3) Write a program that finds if a given number is a prime number View Solution

4) Write a C program to find the sum of individual digits of a positive integer and test given numberis palindrome View Solution

5) A Fibonacci sequence is defined as follows: the first and second terms in the sequence are 0 and 1. Subsequent terms are found by adding the preceding two terms in the sequence. Writea C program to generate the first n terms of the sequence. View Solution

6) Write a C program to generate all the prime numbers between 1 and n, where n is a value supplied by the user View Solution

7) Write a C program to find the roots of a Quadratic equation. View Solution

8) Write a C program to calculate the following, where x is a fractional value.i. 1-x/2 +x^2/4-x^3/6 View Solution

9) Write a C program to read in two numbers, x and n, and then compute the sum of this geometric progression: 1+x+x^2+x^3+..............+x^n. For example: if n is 3 and x is 5, then the program computes 1+5+25+125. View Solution

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1) Write a C program to find the minimum, maximum and average in an array of integers. View Solution

2) Write a function to compute mean, variance, Standard Deviation, sorting of n elements in a single dimension array. View Solution

3) Write a C program that uses functions to perform Addition of Two Matrices View Solution

4) Write a C program that uses functions to perform Multiplication of Two Matrices View Solution

5) Write a C program that uses functions to perform Transpose of a matrix with memory dynamically allocated for the new matrix as row and column counts may not be the same. View Solution

6) Write C programs that use both recursive and non-recursive functions to find the factorial of a given integer. View Solution

7) Write C programs that use both recursive and non-recursive functions to find the GCD (greatest common divisor) of two given integers. View Solution

8) Write C programs that use both recursive and non-recursive functions to find x^n View Solution

9) Write a program for reading elements using a pointer into an array and display the values using the array View Solution

10) Write a program for display values reverse order from an array using a pointer. View Solution

11) Write a program through a pointer variable to sum of n elements from an array. View Solution

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2) Write a C program which copies one file to another, replacing all lowercase characters with their uppercase equivalents. View Solution

3) Write a C program to count the number of times a character occurs in a text file. The file name and the character are supplied as command line arguments View Solution

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3) Write a C program that uses functions to insert a sub-string into a given main string from a given position View Solution

4) Write a C program that uses functions to delete n Characters from a given position in a given string View Solution

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