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hey everyone welcome back and letamp;#39;s write some more neat code today so today letamp;#39;s solve the problem decode ways so weamp;#39;re basically given a string of integers and we want to know with that string of integers how many different ways can we take that string of integers and decode it into a string of characters and weamp;#39;re given a specific mapping so we have 26 characters and each integer maps to a different character so we have an integer 1 2 all the way to 26 and each of these integers maps to a different character now we donamp;#39;t actually need to build that string that we are mapping to we just have to count the number of different ways we can decode it so down here in the example you can see a string like 12 can be decoded in two different ways one way to decode it is just one and two because one maps to a two maps to b so thatamp;#39;s one string but remember we can have double digit values so 12 actually maps to its own character 12 itself maps to
