View Code of Problem 10

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

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