View Code of Problem 10

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

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