add 1347

Author: awesomelike

.gitignore

@@ -1,3 +1,4 @@
 *.exe
 *.out
-test.cpp
+test.cpp
+test.js

medium/1347-min-num-of-steps-to-make-anagram.js

@@ -0,0 +1,29 @@
+/**
+ * @param {string} s
+ * @param {string} t
+ * @return {number}
+ */
+ var minSteps = function(s, t) {
+  const ms = {};
+  for (let i=0; i<s.length; i++) {
+    if (!ms[s[i]]) {
+      ms[s[i]] = 0;
+    } 
+    ms[s[i]]++;
+  }
+  
+  let diff = 0;
+  for (let i=0; i<t.length; i++) {
+    if (!ms[t[i]]) {
+      ms[t[i]] = 0;
+    }
+    if (ms[t[i]] > 0) {
+      ms[t[i]]--;
+    } else {
+      diff++;
+    }
+  }
+  return diff;
+};
+
+console.log(minSteps("bab", "aba"));