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5 | 5 | // #Big_O_Time_O(n)_Space_O(1) #2024_11_10_Time_0_ms_(100.00%)_Space_44.9_MB_(75.73%) |
6 | 6 |
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7 | 7 | class Solution { |
8 | | - public int jump(int[] nums) { |
9 | | - if (nums.length == 1) { |
10 | | - return 0; |
| 8 | + public int jump(int[] nums) { |
| 9 | + if (nums.length == 1) { |
| 10 | + return 0; |
| 11 | + } |
| 12 | + return minJumps(nums, 0, 0); |
11 | 13 | } |
12 | | - return minJumps(nums, 0, 0); |
13 | | - } |
14 | 14 |
|
15 | | - |
16 | | - private static int minJumps(int[] nums, int currIndex, int jumpStatus) { |
17 | | - if (currIndex + nums[currIndex] >= nums.length - 1) { |
18 | | - return jumpStatus + 1; |
19 | | - } |
20 | | - int nextIndex = currIndex + 1; |
21 | | - int distanceLeft = (nums.length - 1 - (currIndex + 1)) - nums[currIndex + 1]; |
22 | | - for (int i = currIndex + 2; i <= (currIndex + nums[currIndex]); i++) { |
23 | | - int tempDistanceLeft = (nums.length - 1 - i) - nums[i]; |
24 | | - if (distanceLeft > tempDistanceLeft) { |
25 | | - distanceLeft = tempDistanceLeft; |
26 | | - nextIndex = i; |
27 | | - } |
| 15 | + private static int minJumps(int[] nums, int currIndex, int jumpStatus) { |
| 16 | + if (currIndex + nums[currIndex] >= nums.length - 1) { |
| 17 | + return jumpStatus + 1; |
| 18 | + } |
| 19 | + int nextIndex = currIndex + 1; |
| 20 | + int distanceLeft = (nums.length - 1 - (currIndex + 1)) - nums[currIndex + 1]; |
| 21 | + for (int i = currIndex + 2; i <= (currIndex + nums[currIndex]); i++) { |
| 22 | + int tempDistanceLeft = (nums.length - 1 - i) - nums[i]; |
| 23 | + if (distanceLeft > tempDistanceLeft) { |
| 24 | + distanceLeft = tempDistanceLeft; |
| 25 | + nextIndex = i; |
| 26 | + } |
| 27 | + } |
| 28 | + return minJumps(nums, nextIndex, jumpStatus + 1); |
28 | 29 | } |
29 | | - return minJumps(nums, nextIndex, jumpStatus + 1); |
30 | | - } |
31 | 30 | } |
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