View Code of Problem 10

#include<iostream>

using namespace std;

int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        int a[4];
        for(int i=0;i<4;i++)
            cin>>a[i];
        for(int i=0;i<3;i++)
        {
            if(a[i]!=0&&a[i+1]==0)
            {
                a[i+1]=a[i];
                a[i]=0;
            }
        }
        for(int i=3;i>=0;i--)
        {
            if(a[i]==a[i-1])
            {
                a[i]=a[i]*2;
                for(int j=i-1;j>0;j--)
                    a[j]=a[j-1];
                a[0]=0;
            }
        }
        cout<<a[0]<<" "<<a[1]<<" "<<a[2]<<" "<<a[3]<<endl;
    }
}

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