{"ref":null,"ref_type":"repository","master_branch":"master","description":"A solution for sparse 2D array which is an array in which most of the elements have the same value (known as the default value—usually 0 or null). The occurrence of zero elements in a large array is inefficient for both computation and storage. An array in which there is a large number of zero elements is referred to as being sparse.","pusher_type":"user"}
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