Given a positive integer n. Determine whether it is even or
odd.
Input. One positive integer n (1 ≤ n ≤ 109).
Output. Print the string “EVEN” if the number n is
even, and the string “ODD” if it is odd.
|
Sample input 1 |
Sample output 1 |
|
3 |
ODD |
|
|
|
|
Sample input 2 |
Sample output 2 |
|
100 |
EVEN |
conditional
statement
Use a
conditional statement to
determine the parity of a number.
Algorithm
implementation
Read the input value of n.
scanf("%d",&n);
Check
whether the number n is even or odd. Based on the result, print the corresponding answer.
if (n % 2 == 0)
printf("EVEN\n");
else
printf("ODD\n");
Algorithm
implementation – ternary operator
#include <stdio.h>
int n;
int main(void)
{
scanf("%d",&n);
(n % 2 == 0) ? puts("EVEN") : puts("ODD");
return 0;
}
Algorithm
implementation – switch
#include <stdio.h>
int n;
int main(void)
{
scanf("%d", &n);
switch (n % 2 == 0)
{
case 1:
puts("EVEN");
break;
case 0:
puts("ODD");
}
return 0;
}
Java implementation
import java.util.*;
public class Main
{
public static void main(String[] args)
{
Scanner con = new
Scanner(System.in);
int n = con.nextInt();
if (n % 2 == 0)
System.out.println("EVEN");
else
System.out.println("ODD");
con.close();
}
}
Java implementation – ternary operator
import java.util.*;
public class Main
{
public static void main(String[] args)
{
Scanner con = new
Scanner(System.in);
int n = con.nextInt();
System.out.println((n % 2 == 0) ? "EVEN" : "ODD");
con.close();
}
}
Java implementation – switch
import java.util.*;
public class Main
{
public static void main(String[] args)
{
Scanner con = new
Scanner(System.in);
int n = con.nextInt();
switch (n % 2)
{
case 0:
System.out.println("EVEN");
break;
case 1:
System.out.println("ODD");
}
con.close();
}
}
Python implementation
Read the input value of n.
n = int(input())
Check
whether the number n is even or odd. Based on the result, print the corresponding answer.
if n % 2 == 0:
print("EVEN")
else:
print("ODD")