practice to solve no.3838

Author: clingoram

javascript/index.js

@@ -1279,3 +1279,72 @@ Delete the characters at 0-indexed positions 3 and 6 ("aababbab" -> "aabbbb").
 // console.log(minimumDeletions(s));
 
 
+/**
+ * 3838. Weighted Word Mapping
+ * 
+ * 0 = z;1 = y;2 = x....;25 = a，26個字母倒著
+ * 
+ * @param {string[]} words
+ * @param {number[]} weights
+ * @return {string}
+ */
+var mapWordWeights = function(words, weights) {
+  // 可能遇到的狀況：key(字母)、value(數字)重複出現
+    // modulo 26
+    let alp = generateAlphabet();
+    // console.log(alp)
+    // let mapWeights = new Map();
+    let sumWeights = [];
+    for(let i = 0;i < words.length;++i) {
+      let char = words[i].split("");
+      let countLen = 0;
+      let sum = 0;
+      for(let j = 0;j < weights.length;++j){
+        if(countLen !== char.length && sumWeights.length !== words.length){
+            sum += weights[j]
+            sumWeights.push(sum);
+        }
+        
+        if(countLen === char.length){
+          countLen = 0;
+          sum = 0;
+        }
+        countLen++;
+      }
+      // for(let a = 0;a < char.length;++a) {
+      //   // map{'a' => 5,'b' => 3,'c' => 12,'d' => 14,'d'=> 1}
+      //   mapWeights.set(char[a],weights[a]);
+      //   // j++;
+
+      // }
+    }
+    console.log(sumWeights)
+
+
+     /**
+     * 產生26個英文字母
+     * a = 26,b = 25 ....
+     * @returns obj
+     */
+    function generateAlphabet(){
+      let start = "a";
+      let end = "z";
+      let alp = new Map();
+      let range = 25;
+      let i = start.charCodeAt(0), j = end.charCodeAt(0);
+      for (; i <= j; ++i) {
+        alp.set(String.fromCharCode(i),range--);
+      }
+      return alp;
+    }
+};
+let list = ["abcd","def","xyz"], weights = [5,3,12,14,1,2,3,2,10,6,6,9,7,8,7,10,8,9,6,9,9,8,3,7,7,2];
+/*
+Output: "rij"
+Explanation:
+The weight of "abcd" is 5 + 3 + 12 + 14 = 34. The result modulo 26 is 34 % 26 = 8, which maps to 'r'.
+The weight of "def" is 14 + 1 + 2 = 17. The result modulo 26 is 17 % 26 = 17, which maps to 'i'.
+The weight of "xyz" is 7 + 7 + 2 = 16. The result modulo 26 is 16 % 26 = 16, which maps to 'j'.
+Thus, the string formed by concatenating the mapped characters is "rij".
+*/
+console.log(mapWordWeights(list,weights));