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ProblemWe need to write a code to interchange the main diagonal elements with the secondary diagonal elements. The size of the matrix is given at runtime.If the size of matrix m and n values are not equal, then it prints that the given matrix is not a square.Only a square matrix can interchange the main diagonal elements and can interchange with the secondary diagonal elements.SolutionThe solution to write a C program to interchange the diagonal elements in given matrix is as follows −The logic to interchange the diagonal elements is explained below −for (i=0;i
ProblemWrite a program to accept a one-dimensional array of N elements and split into two halves. Later on, sort the first half in an ascending order and the second half into descending order.SolutionThe solution to perform the two operations on two halves’ in a single array in C programming language is explained below −The logic used to sort the first half in an ascending order is as follows −for (i=0; i
ProblemFind the areas of rectangle, square, triangle, circle by using the switch case statement, User need to enter base, height, side, radius, breadth and length at runtime to calculate the areas of all geometrical figures.SolutionThe solution to find the areas of rectangle, square, triangle, circle by using the switch case statement is explained below −FormulaeThe formulae for finding the areas of the respective geometrical figures are as follows −Area of rectangle = breadth *length;Area of square = side * side;Area of circle = 3.142*radius*radius;Area of triangle = 0.5 *base*height;ExampleFollowing is the C program to find the areas of rectangle, square, ... Read More
ProblemCompute the value of xn , where x and n both are the inputs given by the user at runtimeSolutionThe solution to generate the value of x power n by using the recursive function in C programming language is as follows −The logic to find xn is mentioned below −//Calling function: Xpow=power(x, n); //Called function: if (n==1) return(x); else if ( n%2 == 0) return (pow(power(x, n/2), 2)); /*if n is even*/ else return (x*power(x, n-1));AlgorithmRefer an algorithm given below to generate the value of x power n by using the recursive function.Step 1 − Read long ... Read More
The general form of the for statement is as follows −for (initialization; condition; operation) statement;Initialization is an assignment statement which is used to set the loop control variable.Condition is a relational expression that determines when the loop exits.The operation defines that how the loop variable changes each time when the loop is repeated.In for loops, the conditional test is performed at the top of the loop. This means that the code inside the loop may not be executed when the condition is false.To begin with as in the following example −x = 10; for (y=10; y != x; ++y) printf ... Read More
The exit () function is used to break out of a loop. This function causes an immediate termination of the entire program done by the operation system.The general form of the exit() function is as follows −void exit (int code);The value of the code is returned to the calling process, which is done by an operation system. Generally, zero is used as return code to indicate normal program termination.ExampleFollowing is the C program for use of exit() function −#include void main(){ char ch; printf("B: Breakfast"); printf("L: Lunch"); printf("D: Dinner"); printf("E: Exit"); printf("Enter your choice:"); ... Read More
Nested loops consist of one loop placed inside another loop.An example of a nested for loop is as follows −for (initialization; condition; operation){ for (initialization; condition; operation){ statement; } statement; }In this example, the inner loop runs through its full range of iterations for each single iteration of the outer loop.ExampleFollowing is the C program to print the table of first four powers of numbers 1 to 9 by using nested for loop − Live Demo#include void main(){ int i, j, k, temp, I=1; printf("I\tI^2\tI^3\tI^4 "); printf("--------------------------------"); for ( i ... Read More
The use of printf is to print out a string with no blank fields to be filled.For example, printf ("An ordinary string.."); printf ("Testing 1, 2, 3...");The next simplest case that has been used before now is to print out a single integer number.int number = 48; printf ("%d", number);The two can be combined as shown below −int number = 48; printf ("Some number = %d", number);The result of this last example is to print out the following on the screen −Some number = 48Here is a list of the different letters for printf −d − signed denary integeru − ... Read More
Consider the examples given below to understand how to convert a decimal fraction to binary fraction in C programming language.Example 1 − Conversions of 25 to binary.Step 1 − 25 / 2 Rem : 1 , Quo : 12Step 2 − 12 / 2 Rem : 0 , Quo : 6Step 3 − 6 / 2 Rem : 0 , Quo: 3Step 4 − 3 / 2 Rem : 1 , Quo: 1Step 5 − 1 / 2 Rem : 1 , Quo: 0So equivalent binary number is: 11001Example 2 − Conversions of 0.7 to binary.Step 1 − 0.7 * ... Read More
ProblemImplement Euclid’ s algorithm to find the greatest common divisor (GCD) and least common multiple (LCM) of two integers and to output the results along with the given integers.SolutionThe solution to implement Euclid’ s algorithm to find the greatest common divisor (GCD) and least common multiple (LCM) of two integers is as follows −The logic used to find GCD and LCM is as follows −if(firstno*secondno!=0){ gcd=gcd_rec(firstno, secondno); printf("The GCD of %d and %d is %d", firstno, secondno, gcd); printf("The LCM of %d and %d is %d", firstno, secondno, (firstno*secondno)/gcd); }The called function is as follows −int gcd_rec(int ... Read More