Modulo − Represents as % operator. And gives the value of the remainder of an integer division.Division − represents as / operator. And gives the value of the quotient of a division.Program 1#include int main(){    int a, b, c;    printf("enter a, b, c values:");    scanf("%d%d%d, &a, &b, &c);    printf("a/b=%d a%b=%d", a/b, a%b);    printf("(a+10)%b=%d (a+10)/b=%d", (a+10)%b, (a+10)/b); }Outputenter a, b, c values:2 4 6 a/b=0 ab=2 (a+10)b=0 (a+10)/b=3Program 2Applying pointer variables to perform modulo and division operation − Live Demo#include void main(){    //Declaring pointers and variables//    int num1, num2;    int *p1, *p2;    p1=&num1;    p2=&num2; ... Read More

ProblemEnter any 9 numbers at runtime and add the numbers in a row, column, and diagonal wise by using C Programming languageAlgorithmStep 1: Declare 9 variables Step 2: enter 9 numbers at runtime Step 3: store the numbers in 3 X 3 matrix form         //x y z         p q r         a b c Step 4: Do row calculation: add all the numbers in a row and print         // (x+y+z), (p+q+r), (a+b+c) Step 5: Do column calculation: add all the numbers in a Column and ... Read More

ProblemHow to store the books-related information of library using C programming.AlgorithmStep 1: Declare a structure which holds data members Step 2: declare variables which are used for loop Step 3: use switch case to work on each module Step 4: case 1- for Adding book information         Case 2- for Display book information         Case 3- for Finding number for books in library         Case 4- for EXITProgram#include #include #include #include struct library{    char bookname[50];    char author[50];    int noofpages;    float price; }; int main(){    struct library ... Read More

ProblemHow to cast vote, count, and display the votes for each candidate that participates in elections using C language?SolutionLet’s consider three persons who participated in elections. Here we need to write a code for the following −Cast vote − Selecting a candidate by pressing the cast voteFind vote count − Finding the total number of votes each candidate gains declaring the winner.ExampleAll these operations are performed by calling each function using Switch case −#include #define CANDIDATE_COUNT #define CANDIDATE1 "ABC" #define CANDIDATE2 "XYZ" #define CANDIDATE3 "PQR" int votescount1=0, votescount2=0, votescount3=0; void castvote(){    int choice;    printf(" ### Please choose your ... Read More

By using justifications in the printf statement, we can format the data in various ways. To implement the right justification, insert a minus sign before the width value in the %s character. printf("%-15s", text); Program 1 The example below prints a table with name and amounts, formatted in two columns with fixed widths for better alignment, using printf() for row and column-wise output. #include int main(){ char a[20] = "Names", b[20]="amount to be paid"; char a1[20] = "Bhanu", b1[20]="Hari", c1[20]="Lucky", d1[20]="Puppy"; int a2 = 200, b2 = 400, c2 = ... Read More

ProblemWrite a C program to calculate a balance installment that is to be paid after every month for a particular loan amount (with interest).SolutionFollowing is the formula to calculate interest when the loan amount is given −i=loanamt * ((interest/100)/12);Following calculation gives amount with interest −i=i+loanamt; firstmon=i-monthlypayment; //first month payment with interest i=firstmon * ((interest/100)/12);Program Live Demo#include int main(){    float loanamt, interest, monthlypayment;    float i, firstmon, secondmon;    printf("enter the loan amount:");    scanf("%f", &loanamt);    printf("interest rate:");    scanf("%f", &interest);    printf("monthly payment:");    scanf("%f", &monthlypayment);    //interest calculation//    i=loanamt * ((interest/100)/12);    //amount with interest    i=i+loanamt; ... Read More

ProblemWrite a C Program to enter the amount in dollars and then display the amount by adding 18% as tax.SolutionLet’s consider the restaurant person adding 18% tax to every bill of the customer.The logic applied to calculate tax is −value=(money + (money * 0.18));The money should be multiplied by 18% and add to the money, then the restaurant person can receive the amount from a customer with tax.Example Live Demo#include int main(){    float money, value;    printf("enter the money with dollar symbol:");    scanf("%f", &money);    value=(money + (money * 0.18));    printf("amount after adding tax= %f", value);    return ... Read More

The volume of sphere is nothing but the capacity of the shape.Volume of a sphere formula is −$$V\:=\:\frac{4}{3}\Pi\:r^{3}$$AlgorithmStep 1: Enter radius of sphere at runtime Step 2: Apply the formula to variable         Volume=(4/3)*3.14*rad*rad*rad Step 3: print the volume Step 4: stopProgram 1 Live Demo#include int main(){    float vol;    int rad;    rad=20;    vol=((4.0f/3.0f) * (3.1415) * rad * rad * rad);    printf("the volume of a sphere is %f", vol);    return 0; }Outputthe volume of a sphere is 33509.335938Program 2Following is an example to find Volume and Surface Area of Sphere − Live Demo#include ... Read More

The sscanf() Function The sscanf() function from the C library reads input from a string and stores the results in specified variables. Each argument must be a pointer to a variable that matches the specified type in the format string. Syntax sscanf(string, formatspecifier, &var1, &var2, ……..) Parameters The following are the parameters for the sscanf() function − The String refers to the character string to read from. The Format string refers to a character string containing the required formatting information. Var1, var2, etc., represent the individual input data items. For example, this code extracts two integers from the ... Read More

ProblemExplain the concept of reference and pointer in a c programming language using examples.ReferenceIt is the alternate name for the variable that we declared.It can be accessed by using pass by value.It cannot hold the null values.Syntaxdatatype *variablenameFor example, int *a; //a contains the address of int type variable.PointerIt stores the address of variable.We can hold the null values using pointer.It can be access by using pass by reference.No need of initialization while declaring the variable.Syntaxpointer variable= & another variable;Example Live Demo#include int main(){    int a=2, b=4;    int *p;    printf("add of a=%d", &a);    printf("add of b=%d", &b); ... Read More