C :

#include<stdio.h>
int main()
{
	int a[100],b[100];
	int i,x,k,m = 0;
	scanf("%d",&k);
	for(x = 0;x<k;x++)	scanf("%d",&a[x]);
	
	for(x = 0;x<k;x++)
	{
		int count = 0;
		if(x>0)	printf("\n");
		for(i = 1;;i++)
		{
			if(a[x] == 1)
			{
				break;
			}	
			else if(a[x]%2 == 0)	a[x] = a[x]/2;
			else if(a[x]%2 == 1)
			{
				b[m] = i;
				if(b[m]>b[0])   printf(" %d",a[x]);
				else printf("%d",a[x]);
				m++;
				a[x] = a[x]*3+1;
				count = 1;
			}
		}   
		if (count==0)	printf("No odd number");  
	}
	return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
	int n,temp,i,b[100][100],k[100],t[100],a[100],j;
	cin>>n;
	for(i=0;i<n;i++)
		cin>>a[i];
	for(i=0;i<n;i++)
	{
		t[i]=0; 
		k[i]=0;
		temp=a[i];
		while(temp!=1)
		{
			if(temp%2==1&&temp!=1)
			{
				b[i][t[i]]=temp;
				t[i]++;
				temp=temp*3+1;
				k[i]++;
			}
			else	temp/=2;
		}
		if(a[i]%2==1) k[i]--;
	}
	for(i=0;i<n;i++)
	{
		if(t[i]==0)	cout<<"No odd number";
		else
		{
			for(j=0;j<t[i];j++)
			{
				if(j!=t[i]-1)	cout<<b[i][j]<<" ";
				else	cout<<b[i][j];
			}
		}
		if(i<n-1) cout<<"\n";
	}
	return 0;
}

Java :

import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		
		while(n-->0){
			int a = in.nextInt();
			int sum=0;
			while(true){
				if(a%2!=0&&a!=1){
					System.out.print(a+" ");
					a=a*3+1;
					sum=1;
				}
				else if(a%2!=0&&a/2==1){
					System.out.print(a);
					break;
				}				
				if(a%2==0){
					a=a/2;
					if(a==1&&sum==0){
						System.out.print("No odd number");
						break;
					}
					else if(a==1){
						break;
					}		
				}					
				}
			System.out.println();
			}
		}
	}