Given an array of positive and negative integers find the first subarray with zero sum? no 0's will be a part of the input array and handle all the edge cases A: 1. iterate through the array once, and take the
Given an integer arraynumsand an integerk, returnthe length of the shortest non-emptysubarrayofnumswith a sum of at leastk. If there is no suchsubarray, return-1. Asubarrayis acontiguouspart of an array. Example 1: Input:nums = [1], k = 1Output:1 Example 2: Input:nums = [1,2]...
class Solution { public boolean checkSubarraySum(int[] nums, int k) { int acc = 0; Map<Integer, Integer> map = new HashMap<>(); map.put(0, -1); for (int i = 0; i < nums.length; i++){ acc += nums[i]; int rem = acc % k; if (map.containsKey(rem)){ if (i - m...
int getLongestSubarry(vector<int> &vec, int k){ int sum=0, res=0; map<int, int> sum_map; for(int idx=0; idx<vec.size(); ++idx){ sum += vec[idx]; if(sum<=k) res = idx+1; //此处修改 else { //前n项和大于sum-k并且需要最早的,此时子数组长度最长 map<int,int>::iterat...
numsand an integerthe number of non-emptysubarrayswith a sumgoal. Asubarrayis a contiguous part of the array. Example 1: Input:nums = [1,0,1,0,1], goal = 2Output:4Explanation:The 4 subarrays are bolded and underlined below:
lintcode:Subarray Sum Closest Given an integer array, find a subarray with sum closest to zero. Return the indexes of the first number and last number. Example Given [-3, 1, 1, -3, 5], return [0, 2], [1, 3], [1, 1], [2, 2] or [0, 4]....
publicintnumSubarraysWithSum(int[] A,intS) {intn = A.length, res =0,sum=0;int[]map= newint[n +1];map[0] =1;for(inti =0; i < n; ++i) {sum+= A[i];if(sum>= S) res +=map[sum- S]; ++map[sum]; }returnres; ...
C++ implementation to find subarray with given sum#include <bits/stdc++.h> using namespace std; vector<int> find(vector<int> a,int n,int s){ vector<int> b; //output vector int cur_sum=0; for(int i=0;i<n;i++){ cur_sum=a[i];//cur_suming element for(int j=i+1;j<n;j...
Return the length of the shortest, non-empty, contiguous subarray of A with sum at least K. If there is no non-empty subarray with sum at least K, return -1. EXAMPLE: Input: A = [2,-1,2], K = 3 Output: 3 --- Input: A = [1,2], K = 4 Output: -1 --- Input: A ...
leetcode 930. Binary Subarrays With Sum This remains me of some 'subarray count' type problems….. classSolution{publicintnumSubarraysWithSum(int[] A,intS){int[] ps =newint[A.length +1]; ps[0] =1;intsum=0;intret=0;for(intv: A) {...