Interview Topics

#include<stdio.h> int main() { int i; for(i = 0; i < 26; i++){ printf(“%c = %d | %c = %d \n”,’A’+i,’A’+i,’a’+i,’a’+i); } return 0; } } Output: A = 65 | a = 97 B = 66 | b = 98 C = 67...

#include<stdio.h> int fibonacci_series(int); int main() { int count, c = 0, i; printf(“Enter number of terms:”); scanf(“%d”,&count); printf(“\nFibonacci series:\n”); for ( i = 1 ; i <= count ; i++ ) { printf(“%d\n”, fibonacci_series(c)); c++; } return 0; } int fibonacci_series(int num) { if...

Factorial: using symbol “! ” Mathematical Ex: 5! = 120 (5*4*3*2*1=120)) Program: #include<stdio.h> int main() { int i,fact,number; printf(“Enter a number: “); scanf(“%d”,&num); for(i=1,fact=1;i<=num;i++){ or (for(i=num,fact=1;i<=1;i–)) fact=fact*i; } printf(“Factorial of %d is: %d”,num,fact); return 0; } Output: Enter a number: 9 Factorial of 9...

Examples of Armstrong Numbers: 0, 1, 2, 3, 153, 370, 407 etc. Program: #include<stdio.h> int main(){ int num,a,p,total=0; printf(“Enter a number:”); scanf(“%d”,&num); a=num; while(a!=0){ p=a%10; total=total+(p*p*p); a=a/10; } if(total == num){ printf(“%d is a Armstrong number.\n”,num); }else{ printf(“%d is not a Armstorng number.\n”,num); }...

Program: #include <stdio.h> int main() { int a, i; printf(“Enter a number: “); scanf(“%d”,&a); for(i=0; i<=5; ++i) { printf(“%d * %d = %d \n”, a, i, a*i); } return 0; } } Output: Enter a number: 7 7 * = 7 * 1 = 7 7 * 2 = 14 7 * 3

Program: #include <stdio.h> #include <conio.h> int main(){ int a, b, c; printf(“Enter two numbers \n”); scanf(“%d %d”, &a, &b); printf(“\na:%d\n b:%d\n”,a,b); c = a; a = b; b = c; printf(“\nAfter Swap\n”); printf(“\na:%d\n b:%d\n”,a,b); getch(); return 0; } Output: Enter two numbers 6 7...

Program: #include <stdio.h> int main(){ int year; printf(“Enter a year :”); scanf(“%d”,&year); if(((year%400==0 )||(year%100!=0))&&(year%4==0)) printf(“%d is a leap year.\n”,year); else printf(“%d is not a leap year.\n”,year); return 0; } Output 1: Enter a year: 1997 1997 is not a leap year. Output 2: Enter...

Arithmetic operators: Addition : + ; Example: 4+2=6 Subtraction : – ; Example: 4-2=2 Multiplication : * ; Example: 4*2=8 Division : / ; Example: 4/2=2 Modulo : % ; Example: 4/2=0(reminder value) Basics: Program: #include <stdio.h> int main() { int N1,N2,sum,difference,product,modulo; float quotient;...