View Code of Problem 10

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