Leetcode 13. Roman to Integer
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public class Solution { public static int romanToInt(String s) { int res = 0; for (int i = s.length() - 1; i >= 0; i--) { char c = s.charAt(i); switch (c) { case 'I': res += (res >= 5 ? -1 : 1); break; case 'V': res += 5; break; case 'X': res += 10 * (res >= 50 ? -1 : 1); break; case 'L': res += 50; break; case 'C': res += 100 * (res >= 500 ? -1 : 1); break; case 'D': res += 500; break; case 'M': res += 1000; break; } } return res; }} 0 0
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