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2017.06.27 14:38
[coding] Find all anagrams in a string
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코딩테스트 관련 URL
https://leetcode.com/problems/find-all-anagrams-in-a-string/#/description
# 내가 푼 내용
/** * @param {string} s * @param {string} p * @return {number[]} */ var findAnagrams = function(s, p) { var res = Array(); if(s.length < p.length){ return res; } p1 = Array.from(p).sort().join(""); for(var i=0; i<=s.length-p.length; i++){ var s1 = s.substring(i, p.length + i); s1 = Array.from(s1).sort().join(""); if(s1 == p1){ res.push(i); } } return res; }; var s = "cbaebabacd"; var p = "abc"; var r = findAnagrams(s, p); console.log(r);
# 봐도 모르는 넘사벽 정답을 그냥 Javascript로 변경만 한거 ㅋㅋ
/** * @param {string} s * @param {string} p * @return {number[]} */ var findAnagrams = function(s, p) { var res = Array(); if(s.length < p.length){ return res; } var hash = new Array(256).fill(0); var left = 0; var right = 0; var count = p.length; for(var i=0; i<p.length; i++){ //hash[p.charCodeAt(i)] = (hash[p.charCodeAt(i)] || 0) + 1; hash[p.charCodeAt(i)]++; console.log("hash["+p.charCodeAt(i)+"] "+hash[p.charCodeAt(i)]); } while(right < s.length){ if (hash[s.charCodeAt(right++)]-- >= 1){ count--; } if(count == 0){ res.push(left); } if(right - left == p.length && hash[s.charCodeAt(left++)]++ >= 0){ count++; } } return res; }; var s = "cbaebabacd"; var p = "abc"; var r = findAnagrams(s, p); console.log(r);