C Tutorial-3

#include <stdio.h>

int main(){ // Q.1 Program to print table. int table; printf("Which table?"); scanf("%d", &table); int i = 1; while(i<=10){ printf(" %d X %d = %d\n",table, i, table*i); i++; }

// Q.2 Program to print table in reversed order. int table; printf("Which table?"); scanf("%d", &table); int i = 10; while(i>=1){ printf(" %d X %d = %d\n",table, i, table*i); --i; }

// Q.3 Program to print sum of first ten natural numbers using while loop. int i = 1; int sum = 0; while(i<=10){ sum+=i; i++; } printf("%d", sum);

// Q.4 Program to print sum of first ten natural numbers using for while loop. int sum = 0; for(int i = 0; i<=10; i++){ sum+=i; } printf("%d", sum);

// Q.5 Program to print sum of first ten natural numbers using do-while loop. int i = 1; int sum = 0; do{ sum+=i; i++; }while(i<=10); printf("%d", sum);

// Q.6 Program to find sum of numbers occurring in table of 8. int sum = 0; for(int i = 1; i<=10; i++){ sum+=8*i; } printf("%d", sum);

// Q.7 Program to find factorial of a given number using for loop. int fact = 1; int num; printf("Enter the value of num: "); scanf("%d", &num); for(int i = 1; i<=num; i++){ fact*=i; } printf("%d", fact);

// Q.8 Program to find factorial of a given number using while loop. int fact = 1; int num; printf("Enter the value of num: "); scanf("%d", &num); int i = 1; while(i<=num){ fact*=i; i++; } printf("%d", fact);

// Q.9 Program to check whether a given number is prime or not using for loop. #include<stdbool.h> int num; printf("Enter the value of num: "); scanf("%d", &num); bool isPrime = true; if(num == 0 || num == 1){ isPrime = false; } for(int i = 2; i<num; i++){ if(num%i==0){ isPrime = false; break; } else isPrime = true; }

if(isPrime) printf("Prime"); else printf("not prime");

}