feat: update lc problem: No.2715 (#1523)

Author: thinkasany

solution/2700-2799/2715.Timeout Cancellation/README.md

@@ -1,4 +1,4 @@
-# [2715. Timeout Cancellation](https://leetcode.cn/problems/timeout-cancellation)
+# [2715. 执行可取消的延迟函数](https://leetcode.cn/problems/execute-cancellable-function-with-delay)
 
 [English Version](/solution/2700-2799/2715.Timeout%20Cancellation/README_EN.md)
 
@@ -69,16 +69,10 @@ setTimeout(cancel, 100);
 
 ```ts
 function cancellable(fn: Function, args: any[], t: number): Function {
-    let cancelled = false;
-    const cancel = () => {
-        cancelled = true;
+    const timer = setTimeout(() => fn(...args), t);
+    return () => {
+        clearTimeout(timer);
     };
-    setTimeout(() => {
-        if (!cancelled) {
-            fn(...args);
-        }
-    }, t);
-    return cancel;
 }
 
 /**
@@ -118,14 +112,10 @@ function cancellable(fn: Function, args: any[], t: number): Function {
  * @return {Function}
  */
 var cancellable = function (fn, args, t) {
-    let cancelled = false;
-    const calcel = () => (cancelled = true);
-    setTimeout(() => {
-        if (!cancelled) {
-            fn(...args);
-        }
-    }, t);
-    return calcel;
+    const timer = setTimeout(() => fn(...args), t);
+    return () => {
+        clearTimeout(timer);
+    };
 };
 
 /**

solution/2700-2799/2715.Timeout Cancellation/README_EN.md

@@ -64,16 +64,10 @@ The cancellation was scheduled to occur after a delay of cancelT (100ms), which
 
 ```ts
 function cancellable(fn: Function, args: any[], t: number): Function {
-    let cancelled = false;
-    const cancel = () => {
-        cancelled = true;
+    const timer = setTimeout(() => fn(...args), t);
+    return () => {
+        clearTimeout(timer);
     };
-    setTimeout(() => {
-        if (!cancelled) {
-            fn(...args);
-        }
-    }, t);
-    return cancel;
 }
 
 /**
@@ -113,14 +107,10 @@ function cancellable(fn: Function, args: any[], t: number): Function {
  * @return {Function}
  */
 var cancellable = function (fn, args, t) {
-    let cancelled = false;
-    const calcel = () => (cancelled = true);
-    setTimeout(() => {
-        if (!cancelled) {
-            fn(...args);
-        }
-    }, t);
-    return calcel;
+    const timer = setTimeout(() => fn(...args), t);
+    return () => {
+        clearTimeout(timer);
+    };
 };
 
 /**

solution/2700-2799/2715.Timeout Cancellation/Solution.js

@@ -5,14 +5,10 @@
  * @return {Function}
  */
 var cancellable = function (fn, args, t) {
-    let cancelled = false;
-    const calcel = () => (cancelled = true);
-    setTimeout(() => {
-        if (!cancelled) {
-            fn(...args);
-        }
-    }, t);
-    return calcel;
+    const timer = setTimeout(() => fn(...args), t);
+    return () => {
+        clearTimeout(timer);
+    };
 };
 
 /**

solution/2700-2799/2715.Timeout Cancellation/Solution.ts

@@ -1,14 +1,8 @@
 function cancellable(fn: Function, args: any[], t: number): Function {
-    let cancelled = false;
-    const cancel = () => {
-        cancelled = true;
+    const timer = setTimeout(() => fn(...args), t);
+    return () => {
+        clearTimeout(timer);
     };
-    setTimeout(() => {
-        if (!cancelled) {
-            fn(...args);
-        }
-    }, t);
-    return cancel;
 }
 
 /**

solution/README.md

@@ -2725,7 +2725,7 @@
 |  2712  |  [使所有字符相等的最小成本](/solution/2700-2799/2712.Minimum%20Cost%20to%20Make%20All%20Characters%20Equal/README.md)  |  `贪心`,`字符串`,`动态规划`  |  中等  |  第 347 场周赛  |
 |  2713  |  [矩阵中严格递增的单元格数](/solution/2700-2799/2713.Maximum%20Strictly%20Increasing%20Cells%20in%20a%20Matrix/README.md)  |  `记忆化搜索`,`数组`,`二分查找`,`动态规划`,`矩阵`,`排序`  |  困难  |  第 347 场周赛  |
 |  2714  |  [找到最短路径的 K 次跨越](/solution/2700-2799/2714.Find%20Shortest%20Path%20with%20K%20Hops/README.md)  |  `图`,`最短路`,`堆（优先队列）`  |  困难  |  🔒  |
-|  2715  |  [Timeout Cancellation](/solution/2700-2799/2715.Timeout%20Cancellation/README.md)  |    |  简单  |    |
+|  2715  |  [执行可取消的延迟函数](/solution/2700-2799/2715.Timeout%20Cancellation/README.md)  |    |  简单  |    |
 |  2716  |  [最小化字符串长度](/solution/2700-2799/2716.Minimize%20String%20Length/README.md)  |  `哈希表`,`字符串`  |  简单  |  第 348 场周赛  |
 |  2717  |  [半有序排列](/solution/2700-2799/2717.Semi-Ordered%20Permutation/README.md)  |  `数组`,`模拟`  |  简单  |  第 348 场周赛  |
 |  2718  |  [查询后矩阵的和](/solution/2700-2799/2718.Sum%20of%20Matrix%20After%20Queries/README.md)  |  `数组`,`哈希表`  |  中等  |  第 348 场周赛  |

solution/summary.md

@@ -2768,7 +2768,7 @@
   - [2712.使所有字符相等的最小成本](/solution/2700-2799/2712.Minimum%20Cost%20to%20Make%20All%20Characters%20Equal/README.md)
   - [2713.矩阵中严格递增的单元格数](/solution/2700-2799/2713.Maximum%20Strictly%20Increasing%20Cells%20in%20a%20Matrix/README.md)
   - [2714.找到最短路径的 K 次跨越](/solution/2700-2799/2714.Find%20Shortest%20Path%20with%20K%20Hops/README.md)
-  - [2715.Timeout Cancellation](/solution/2700-2799/2715.Timeout%20Cancellation/README.md)
+  - [2715.执行可取消的延迟函数](/solution/2700-2799/2715.Timeout%20Cancellation/README.md)
   - [2716.最小化字符串长度](/solution/2700-2799/2716.Minimize%20String%20Length/README.md)
   - [2717.半有序排列](/solution/2700-2799/2717.Semi-Ordered%20Permutation/README.md)
   - [2718.查询后矩阵的和](/solution/2700-2799/2718.Sum%20of%20Matrix%20After%20Queries/README.md)