C :

#include<stdio.h>

void main(){
	int n;
	double p;
	scanf("%d",&n);
	
	if(n<10&&n>0){
		p=n*1.5;
	}else if(n>=10){
		p=n*1.2;
	}
	printf("%.1f",p);
}

C++ :

#include <bits/stdc++.h>
using namespace std;

int main(){
    int n;
    cin>>n;
	double r;
	if(n < 10){
		r = n * 1.5;
	}else{
		r = n * 1.2;
	}
	
	cout<<fixed<<setprecision(1)<<r;
}
 

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		double s;
		if(n < 10){
			s =(double)(n * 1.5);
			System.out.println(String.format("%.1f", s));
		}else if(n >= 10){
			s =(double)(n * 1.2);
			System.out.println(String.format("%.1f", s));
		}
	}

}

Python :

n = int(input())
if n < 10:
    print('%.1f' % (n * 1.5))
if n >= 10:
    print('%.1f' % (n * 1.2))