View Code of Problem 10

#include <stdio.h>
#include <string.h>
#include <math.h>
int main()
{
	int n,i,j;
	int a[4];
	scanf("%d", &n);
	while (n--)
	{
		for(i=0;i<4;i++)
		scanf("%d", &a[i]);
		for(i=3;i>0;i--)
			for (j = i - 1; j >= 0; j--)
			{
				if (a[i] == 0 && a[j] != 0)
				{
					a[i] = a[j];
					a[j] = 0;
					break;
				}
			}
		for (i = 3; i > 0; i--)
				if (a[i] == a[i-1] && a[i] != 0)
				{
					a[i] *= 2;
					a[i-1] = 0;
				}
		for (i = 3; i > 0; i--)
			for (j = i - 1; j >= 0; j--)
			{
				if (a[i] == 0 && a[j] != 0)
				{
					a[i] = a[j];
					a[j] = 0;
					break;
				}
			}
		for (i = 0; i < 4; i++)
		{
			printf("%d", a[i]);
			if (i == 3)
				printf("\n");
			else
				printf(" ");
		}
	}
	return 0;
}