diff --git a/minimum-sideway-jumps/index.ts b/minimum-sideway-jumps/index.ts
index b4d15203..2bd3868d 100644
--- a/minimum-sideway-jumps/index.ts
+++ b/minimum-sideway-jumps/index.ts
@@ -1,25 +1,25 @@
 function minSideJumps(obstacles: number[]): number {
-  const n = obstacles.length
-  let ans = 0
-  let cur = 2 // 记录青蛙当前所在的跑道
-  for (let i = 0; i < n; i++) {
-    if (obstacles[i + 1] !== cur) continue
-    // 记录另外两条跑道
-    const other = (cur + 1) % 3 || 3
-    const another = (cur + 2) % 3 || 3
+    const n = obstacles.length;
+    let ans = 0;
+    let cur = 2; // 记录青蛙当前所在的跑道
+    for (let i = 0; i < n; i++) {
+        if (obstacles[i + 1] !== cur) continue;
+        // 记录另外两条跑道
+        const other = (cur + 1) % 3 || 3;
+        const another = (cur + 2) % 3 || 3;
 
-    // 求另两个跑道，下一个障碍物的位置
-    let next = i
-    while (next < n && obstacles[next] !== other) {
-      next++
+        // 求另两个跑道，下一个障碍物的位置
+        let next = i;
+        while (next < n && obstacles[next] !== other) {
+            next++;
+        }
+        while (i < n && obstacles[i] !== another) {
+            i++;
+        }
+        cur = next > i ? other : another;
+        i = Math.max(next, i) - 2;
+        ans++;
     }
-    while (i < n && obstacles[i] !== another) {
-      i++
-    }
-    cur = next > i ? other : another
-    i = Math.max(next, i) - 2
-    ans++
-  }
-  return ans
+    return ans;
 }
-export default minSideJumps
+export default minSideJumps;