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I am new to python and I had difficulty understanding the code.
Why are two same two for-loops needed? And how does this statement get us the solution : print(cnt[input().strip()]) ?
Thanks.
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Sparse Arrays
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I am new to python and I had difficulty understanding the code. Why are two same two for-loops needed? And how does this statement get us the solution : print(cnt[input().strip()]) ? Thanks.