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intmain(){/* Enter your code here. Read input from STDIN. Print output to STDOUT */// construct the arrayintn,q;std::cin>>n>>q;int**array=newint*[n];for(inti=0;i<n;i++){intk;std::cin>>k;array[i]=newint[k];for(intj=0;j<k;j++){std::cin>>array[i][j];}}// queryfor(ints=0;s<q;s++){inti,j;std::cin>>i>>j;std::cout<<array[i][j]<<std::endl;}// deallocate the arrayfor(inti=0;i<n;i++){delete[]array[i];}delete[]array;return0;}
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Variable Sized Arrays
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