8526. Conditional statement - 3

Find the value of y according to the following condition:

Input. One integer x (-100 ≤ x ≤ 100).

Output. Print the value of y according to the given condition.

Sample input 1	Sample output 1
3	0
Sample input 2	Sample output 2
-8	-3

SOLUTION

conditional statement

Algorithm analysis

Use a conditional statement to solve the problem.

Algorithm implementation

Read the input value of x.

scanf("%d", &x);

Compute the value of y.

if (x < -4)

y = x + 5;

else

if (x <= 7)

y = x * x – 3 * x;

else

y = x * x * x + 2 * x;

Print the result.

printf("%lld\n",y);

Java implementation

import java.util.*;

public class Main

{

public static void main(String[] args)

{

Scanner con = new Scanner(System.in);

int y, x = con.nextInt();

if (x < -4)

y = x + 5;

else

if (x <= 7)

y = x*x - 3*x;

else

y = x*x*x + 2*x;

System.out.println(y);

con.close();

}

}

Python implementation

Read the input value of x.

x = int(input())

Compute the value of y.

if x < -4:

y = x + 5

elif x <= 7:

y = x * x - 3 * x

else:

y = x * x * x + 2 * x

Print the result.

print(y)