# LeetCode Roman to Integer: Find the Pattern

The key to solve this LeetCode Roman to Integer problem is to find or summarize the pattern about the conversion rules between roman number and integers.

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The key to solve this LeetCode Roman to Integer problem is to find or summarize the pattern about the conversion rules between roman number and integers.

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LeetCode Minimum Path Sum: Dynamic Programming is used to define the minimum path sum recursive formula, with Memory Optimization, it would be done in O(n) space.

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The key to solve this LeetCode Integer to Roman problem is to figure the corresponding mapping from the digits to Roman numbers.

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LeetCode Decode Ways: Dynamic Programming is used to solve decode ways problem in iterative manner, this is a modified version of finding fibonacci numbers.

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Analyze the solutions from two different angles to solve the LeetCode ZigZag Convension problem: from index of original string to zigzag one or vise verse.

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