更新

2026-08-11 17:41:36 +08:00
parent cfe4c82c90
commit 03fe4ddf9d
18771 changed files with 3617239 additions and 0 deletions
@@ -0,0 +1,26 @@
+var isSorted = require('./isSorted');
+exports = function(arr) {
+    var cmp =
+        arguments.length > 1 && arguments[1] !== undefined
+            ? arguments[1]
+            : isSorted.defComparator;
+    if (arr.length <= 1) return arr;
+    var middle = floor(arr.length / 2);
+    var left = arr.slice(0, middle);
+    var right = arr.slice(middle);
+    return merge(exports(left, cmp), exports(right, cmp), cmp);
+};
+function merge(left, right, cmp) {
+    var ret = [];
+    var i = 0;
+    var j = 0;
+    while (i < left.length && j < right.length) {
+        cmp(left[i], right[j]) < 0 ? ret.push(left[i++]) : ret.push(right[j++]);
+    }
+    while (i < left.length) ret.push(left[i++]);
+    while (j < right.length) ret.push(right[j++]);
+    return ret;
+}
+var floor = Math.floor;
+
+module.exports = exports;