Description : Develop a program to swap two numbers using pointer and add swaped numbers also print their addition.
Last Answer : #include<stdio.h> void swap(int *a,int *b) { int temp; temp=*a; *a=*b; *b=temp; } void main() { int x,y,sum; printf("\n Enter value for x:"); scanf(" ... x); printf("\ny=%d",y); sum=x+y; printf("Sum of x+y = %d",sum); }
Description : Write a program to sweep the values of variables a = 10, b = 5 using function.
Last Answer : #include #include void swapvalues(int *i, int *j) { int temp; temp=*i; *i=*j; *j=temp; } void main() { int a=10; int b=5; clrscr(); printf("The values before swaping:\na=%d, b=%d",a,b); swapvalues(&a,&b); printf("\nThe values after swaping:\na=%d, b=%d",a,b); getch(); }
Description : Write a program to declare structure employee having data member name, age, street and city. Accept data for two employees and display it.
Last Answer : #include<stdio.h> #include<conio.h> struct employee { char name[10],street[10],city[10]; int age; }; void main() { int i; struct employee e[2]; clrscr(); for(i=0;i<2 ... =%s",e[i].street); printf("\n City=%s",e[i].city); } getch(); }
Description : Write a program to accept two numbers from user and perform addition, subtraction, multiplication and division operations using pointer.
Last Answer : #include #include void main() { int no1,no2,*ptr1,*ptr2,result; clrscr(); printf("Enter no1:"); scanf("%d",&no1); printf("\nEnter no2:"); scanf("%d",&no2); ptr1=&no1; ptr2=&no2; ... "\n Multiplication=%d",result); result=*ptr1/(*ptr2); printf("\n Division=%d",result); getch(); }
Description : Write a program to accept the value of year as input from the keyboard & print whether it is a leap year or not.
Last Answer : #include #include void main() { int year; clrscr(); printf("Enter year"); scanf("%d",&year); if(year%4==0) { printf("Year %d is a leap year",year); } else { printf("Year %d is not a leap year",year); } getch(); }
Description : If the value of a number (N) is entered through keyboard. Write a program using recursion to calculate and display factorial of number (N).
Last Answer : #include<stdio.h> #include<conio.h> int factorial(int N); void main() { int N,fact; clrscr(); printf("Enter number:"); scanf("%d",&N); fact=factorial(N); printf( ... N) { if(N==1) return(1); else return(N*factorial(N-1)); }
Description : Write a program to accept marks of four subjects as input from user. Calculate and display total and percentage marks of student.
Last Answer : #include<stdio.h> #include<conio.h> void main() { float marks[4]; float total=0.0, perc=0.0; int i; clrscr(); for(i=1;i<=4;i++) { printf("Enter marks of ... is :%f",total); perc=total/4; printf("Percentage is %f",perc); getch(); }
Description : Design a programme in C to read the n numbers of values in an array and display it in reverse order.
Last Answer : #include #include #define max 50 void main() { int a[max],i,n; clrscr(); printf("\n Enter number of elements:"); scanf("%d",&n); printf("\n Enter array element:"); for(i=0;i=0;i--) printf("\t%d",a[i]); getch(); }
Description : Develop a program using structure to print data of three students having data members name, class, percentage.
Last Answer : #include #include void main() { struct student { char name[20]; char c[20]; int per; } s[3]; int i; clrscr(); for(i=0;i
Description : Define pointer. Write syntax for pointer declaration.
Last Answer : Definition: A pointer is a variable that stores memory address of another variable which is of similar data type. Declaration: datatype *pointer_variable_name;
Description : Design a program to print a message 10 times.
Last Answer : #include #include void main() { int i; clrscr(); for(i=0;i
Description : Develop a program to accept an integer number and print whether it is palindrome or not.
Last Answer : #include<stdio.h> #include<conio.h> void main() { int n,num,rev=0,digit,i; clrscr(); printf("Enter the number: "); scanf("%d",&num); n=num ... ;Number is palindrome"); else printf("Number is not palindrome"); getch(); }
Description : State the syntax to declare pointer variable with example.
Last Answer : General syntax to declare pointer. datatype *var_name; Eg: int var = 20;
Description : State four arithmetic operations perform on pointer with example.
Last Answer : The pointer arithmetic is done as per the data type of the pointer. The basic operations on pointers are Increment: It is used to increment the pointer. Each time a pointer is incremented, it points to the ... address 1004, Then ptr-2 shows 1004-(2*2) = 1000 as decremented location for an int.
Description : Explain how to pass pointer to function with example.
Last Answer : When pointer (addresses) is passed to the function as an argument instead of value then function is called as call by reference. Example: #include #include int add(int *); void main() { int *ptr,pos=0; clrscr(); printf( ... ; getch(); } int add(int *p) { int i=0; int sum=0; for(i=1;i
Description : Give any four advantages of pointer.
Last Answer : Advantages of pointer: 1. Pointers reduce the length and complexity of a program. 2. They increase execution speed. 3. A pointer enables us to access a variable that is defined outside the ... strings results in saving of data storage space in memory. 6. It supports dynamic memory management.
Description : Write a program to declare structure student having rollno, name & marks.
Last Answer : Accept and display data for three students. #include #include void main() { int i; struct student{ int rollno; char name[20]; int marks; } s[3]; clrscr(); for(i=0;i
Description : Write a function to print Fibonacci series starting from 0, 1.
Last Answer : void Fibbo() { inta,b,c,limit,i; printf("\n Enter number:"); scanf("%d",&limit); a=0; b=1; printf("%d\t%d",a,b); for(i=0;i
Description : Write algorithm and draw flow-chart to print even numbers from 1 to 100.
Last Answer : Here's one possible algorithm to print even numbers from 1 to 100: Start with a variable i equal to 1. Check if i is less than or equal to 100. If i is less than or equal to 100 ... and increments `i` by 1. The loop continues until `i` is greater than 100, and the program ends.
Description : Write a program to accept a string as input from user and determine its length. [Don’t use built in library function strlen()]
Last Answer : #include #include void main(){ char str[50]; int i, len=0; clrscr(); printf("Enter a string"); scanf("%s",&str); for(i=0; str[i]!='\0'; i++){ len++; } printf("The length of string is %d",len); getch(); }
Description : Write a program to sort elements of an array in ascending order.
Last Answer : #include #include void main() { int a[5],i,j,temp; clrscr(); printf("\n Enter array elements:"); for(i=0;i
Description : Write a program to compute the sum of all elements stored in an array using pointers.
Last Answer : #include #include void main() { int a[5],sum=0,i,*ptr; clrscr(); printf("\n Enter array elements:"); for(i=0;i
Description : Write a program to calculate sum of all the odd numbers between 1 to 20.
Last Answer : Write a program to calculate sum of all odd element of 1D array
Description : Write a program to read two strings and find whether they are equal or not.
Last Answer : #include<stdio.h> #include<conio.h> #include<string.h> void main() { char st1[20],st2[20]; printf( enter string 1 ); scanf( %s ,st1); printf( enter second string ); ... 0) printf( \nboth strings are equal ); else printf( \nstrings are not equal ); }
Description : Write a program to add, subtract, multiply and divide two numbers, accepted from user switch case.
Last Answer : #include<stdio.h> #include<conio.h> void main() { int a,b,ch,add,sub,mul,div; clrscr(); printf("\n1 for addition \n2 for substraction"); printf("\n3 for multiplication \ ... break; default: printf("Invalid choice...."); } getch(); }
Description : Write a program to sum all the odd numbers between 1 to 20.
Last Answer : #include<stdio.h> #include<conio.h> void main() { int sum=0,i; clrscr(); for(i=1;i<=20;i++) { if(i%2==1) sum=sum+i; } printf(“sum of odd no“s between 1 to 20 is %d”,sum); getcht); }
Description : Write a program to reverse the number 1234 (i.e. 4321) using function.
Last Answer : #include #include void findReverse(); void main() { findReverse(); } void findReverse() { int num, res=0,ans=0; clrscr(); printf("Enter the number"); scanf("%d", &num); while(num!=0) { res=num%10; ans=ans*10+res; num=num/10; } printf("Reverse number is %d", ans); getch(); }
Description : Write a program for addition of two 3 x 3 matrices.
Last Answer : #include<stdio.h> #include<conio.h> void main() { int a[3][3],b[3][3],c[3][3],i,j; clrscr(); printf("Enter first matrix elements:\n"); for(i=0;i<3;i++) { for(j=0;j<3 ... (j=0;j<3;j++) { printf("%d\t",c[i][j]); } } getch(); }
Description : Write a program using switch statement to check whether entered character is VOWEL or CONSONANT
Last Answer : #include<stdio.h> #include<conio.h> void main() { char ch; clrscr(); printf("Enter character:"); scanf("%c",&ch); switch(ch) { case 'a': ... break; default: printf("\n Entered character is CONSONANT"); } getch(); }
Description : Write a program to swap two numbers using call be value.
Last Answer : #include<stdio.h> #include<conio.h> void swap(int a, int b) { int temp; temp=a; a=b; b=temp; printf("Numbers after swapping no1=%d and no2=%d",a,b); } void ... ;Numbers before swapping no1=%d and no2= %d",no1, no2); swap(no1,no2); getch(); }
Description : Draw a flowchart of Do-while loop and write a program to add numbers until user enters zero.
Last Answer : Flowchart of Do-while loop: Program:- #include<stdio.h> #include<conio.h> void main() { int no,sum=0; clrscr(); do { printf("\n Enter a number:"); scanf( ... no; }while(no!=0); printf("\n Sum of entered numbers =%d",sum); getch(); }
Description : Develop a program to find diameter, circumference and area of circle using function.
Last Answer : #include<stdio.h> #include<conio.h> void circle(float r) { float diameter,circumference,area; diameter=2*r; printf("\n Diameter=%f",diameter); circumference=2*3.14*r; printf ... :"); scanf("%f",&radius); circle(radius); getch(); }
Description : Implement a program to demonstrate concept of pointers to function.
Last Answer : Pointer to function: include int sum(int x, int y) { return x+y; } int main() { int s; int(*fp)(int, int); fp = sum; s = fp(10,12); printf(“Sum = %d”,s); return 0; }
Description : Give a method to create, declare and initialize structure also develop a program to demonstrate nested structure.
Last Answer : Declaration of structure:- struct structure_name { data_type member 1; data_type member 2; . . . data_type member n; } structure variable 1, structure variable 2,..., structure variable n ... .collegeid); printf("\n College name=%s",s.c.collegename); getch(); }
Description : Implement a program to demonstrate logical AND operator.
Last Answer : #include #include void main() { int i; int j; clrscr(); printf("Enter the values of i and j"); scanf("%d%d",&i,&j); if(i==5 && j==5) { printf("Both i and j are equal to 5"); } else { printf("Both the values are different and either or both are not equal to 5"); } getch(); }
Description : Develop a program to find factorial of a number using recursion.
Last Answer : #include<stdio.h> #include<conio.h> int factorial(int num) { if(num==1) { return 1; } else { return(num*factorial(num-1)); } } void main() { int ... ;num); result=factorial(num); printf("Factorial of %d is %d",num,result); getch(); }
Description : Develop a simple ‘C’ program for addition and multiplication of two integer numbers.
Last Answer : #include<stdio.h> #include<conio.h> void main() { int a,b,add,mul; clrscr(); printf("Enter value for a and b:"); scanf("%d%d",&a,&b); add=a+b; ... b=%d\n",add); printf("\Multiplication of a and b=%d",mul); getch(); }
Description : Write a program to declare a class ‘book’ containing data members as ‘title’, ‘author-name’, ‘publication’, ‘price’. Accept and display the information for one object using pointer to that object.
Last Answer : #include<iostream.h> #include<conio.h> class book { char author_name[20]; char title[20]; char publication[20]; float price; public: void Accept(); void Display(); }; void ... title \t author_name \t publication \t price\n ; p-> Display(); getch(); }
Description : State the syntax & use of strlen ( ) & strcat ( ) function.
Last Answer : strlen( ): calculates the length of the string Syntax: strlen(s1); strcat():concatenates two strings Syntax: strcat(s1,s2)
Description : State the use of printf( ) & scanf( ) with suitable example.
Last Answer : printf( ) & scanf( ): printf() and scanf() functions are library functions in C programming language defined in stdio.h . printf() function is used to print the character, string, float, integer, octal and hexadecimal ... number"); scanf("%d",&i); printf("Entered number is: %d",i); getch(); }
Description : Write a program to declare class having data member as hrs, mins, secs. Write constructor to assign values and destructor to destroy values. Accept & display data for one object.
Last Answer : #include<iostream.h> #include<conio.h> class time { private: int hrs, mins,sec; public: time(int h,int m,int s) { hrs=h; mins=m; sec=s; } ~time() { cout<< hours ... } }; void main() { time t(2,43,56); t.display(); getch(); }
Description : Write syntax and use of pow ()function of header file.
Last Answer : pow()- compute the power of a input value Syntax: double pow (double x, double y);
Description : Write an algorithm to determine the given number is odd or even.
Last Answer : Step 1- Start Step 2- Read / input the number. Step 3- if n%2==0 then number is even. Step 4- else number is odd. Step 5- display the output. Step 6- Stop
Description : Write the syntax of switch case statement.
Last Answer : switch(variable) { case value1: statements break; case value2: statements; break; . . . default: statements; break; }
Description : Write an algorithm to determine whether a given number is divisible by 5 or not
Last Answer : Here's one possible algorithm to determine whether a given number is divisible by 5 or not: Start by taking the input number. Check if the last digit of the number is either 0 or 5. If the ... The above two algorithms are basic ways of checking whether the given number is divisible by 5 or not.
Description : A pointer can hold A) Single address at a time B) Two addresses at a time C) Number of addresses at a time D) No address
Last Answer : A) Single address at a time
Description : Implement a program to declare a class city with data members city name and state. Accept and display data for 1 object using pointer to object.
Last Answer : #include<iostream.h> #include<conio.h> class city { char city_name[20],state[20]; public: void accept() { cout<<"\nEnter city data:"; cout<<"\nName:"; ... ); ptr=&c; ptr->accept(); ptr->display(); getch(); }
Description : Define array. List its type.
Last Answer : Array is a fixed-size sequential collection of elements of the same type. Types: 1. One dimensional 2. Multi dimensional
Description : Define type casting. Give any one example.
Last Answer : Definition type casting: The conversion of one data type to another is known as type casting. The values are changed for the respective calculation only, not for any permanent effect in a program. For ... sin((int)x) means x will be converted to integer and then sine angle will be calculated.
Description : Write a program in C++ to accept a string from a user and display its reverse using pointer.
Last Answer : #include<iostream.h> #include<conio.h> #include<string.h> void main() { char str[20],*ptr; int l; clrscr(); cout<<"\n Enter a string : "; cin>>str; l=strlen(str); ... (l!=0) { ptr--; cout<<*ptr; l--; } getch(); }