法一:用boolean数组(一些测试用例会越界,没有做边界检查) publicclassSolution{privatestaticStringoperate(boolean[][] arr,String op,inta,intb){switch(op) {case"AND":for(inti=0;i<arr[0].length;i++) { arr[a-1][i] = arr[a-1][i] & arr[b-1][i]; }break;case"OR":for(inti=0;i<...
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To extend this problem to contiguous subarrays, we use an ArrayDeque to keep track of the elements in each subarray. By being able to add/remove from our ArrayDeque, we can keep track of which elements we are currently considering for our subarray. map.(old)==1){map.remove(old);}else{...
class Solution { public int minSubArrayLen(int target, int[] nums) { int left = 0, sum = 0, minLen = Integer.MAX_VALUE; for (int right = 0; right < nums.length; right++) { sum += nums[right]; while (sum >= target) { minLen = Math.min(minLen, right - left + 1...
The Maximum Subarray Java Medium 50 Sherlock and Cost Java Medium 50 Xor and Sum Java Medium 50 Counting Special Sub-Cubes Java Medium 50 Two Robots Java Medium 50 Kingdom Division Java Medium 50 Prime XOR Java Medium 50 HackerRank City Java Medium 50 Nikita and the Game Java ...
N/A Subarray Sum II.java Hard [Array, Binary Search, Two Pointers] Java 171 N/A Matrix Zigzag Traversal.java Easy [] Java 172 N/A Ones and Zeroes.java Hard [DP] Java 173 N/A Number of Connected Components in an Undirected Graph.java Medium [BFS, DFS, Graph, Union Find] Java 174...
N/A Subarray Sum II.java Hard [Array, Binary Search, Two Pointers] Java 171 N/A Matrix Zigzag Traversal.java Easy [] Java 172 N/A Ones and Zeroes.java Hard [DP] Java 173 N/A Number of Connected Components in an Undirected Graph.java Medium [BFS, DFS, Graph, Union Find] Java 174...
The Maximum Subarray Java Medium 50 Sherlock and Cost Java Medium 50 Xor and Sum Java Medium 50 Counting Special Sub-Cubes Java Medium 50 Two Robots Java Medium 50 Kingdom Division Java Medium 50 Prime XOR Java Medium 50 HackerRank City Java Medium 50 Nikita and the Game Java ...
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