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Basic calculator using C programming
# include < stdio.h > # include < stdlib.h > int main () { // num1 num2 + int num1,num2; char operator; scanf ( " %d %d %c " ,&num1,&num2,&operator); switch (operator) { case ' + ' : printf ( " %d " ,num1+num2); break ; case ' - ' : printf ( " %d " ,num1-num2); break ; case ' * ' : printf ( " %d " ,num1*num2); break ; case ' / ' : if (num2== 0 ) { printf ( " Not divisible by zero " ); break ; } else { printf ( " %d " ,num1/num2); break ; } default : printf ( " invalid " ); } return 0 ; }
Factorial of consecutively 5 numbers(input)
import java.util.Scanner ; public class Main { public static void main ( String [] args ) { // write your code here int arr[] = new int [ 5 ]; Scanner sc = new Scanner ( System . in); for ( int i = 0 ;i < 5 ;i ++ ) { arr[i] = sc . nextInt(); } for ( int i = 0 ;i < arr . length;i ++ ) { System . out . println(factorial(arr[i])); ; } } private static int factorial ( int num ) { int fact = 1 ; for ( int i = 1 ;i <= num;i ++ ) fact = fact * i; return fact; } }

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