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# Find Subarrays With Equal Sum LeetCode Solution

## Problem – Find Subarrays With Equal Sum LeetCode Solution

Given a 0-indexed integer array `nums`, determine whether there exist two subarrays of length `2` with equal sum. Note that the two subarrays must begin at different indices.

Return `true` if these subarrays exist, and `false` otherwise.

subarray is a contiguous non-empty sequence of elements within an array.

Example 1:

``````Input: nums = [4,2,4]
Output: true
Explanation: The subarrays with elements [4,2] and [2,4] have the same sum of 6.
``````

Example 2:

``````Input: nums = [1,2,3,4,5]
Output: false
Explanation: No two subarrays of size 2 have the same sum.
``````

Example 3:

``````Input: nums = [0,0,0]
Output: true
Explanation: The subarrays [nums[0],nums[1]] and [nums[1],nums[2]] have the same sum of 0.
Note that even though the subarrays have the same content, the two subarrays are considered different because they are in different positions in the original array.
``````

Constraints:

• `2 <= nums.length <= 1000`
• `-109 <= nums[i] <= 109`

## Find Subarrays With Equal Sum LeetCode Solution in C++

``````class Solution {
public:
bool findSubarrays(vector<int>& nums) {
int n=nums.size();
int count=0;
for(int i=0;i<n-1;i++){
for(int j=i+1;j<n-1;j++){
if(nums[j]+nums[j+1]==nums[i]+nums[i+1]) count++;
}
}
return count>=1;
}
};
``````

## Find Subarrays With Equal Sum LeetCode Solution in Python

``````class Solution:
def findSubarrays(self, nums: List[int]) -> bool:
sums = set()

for i in range(len(nums)-1):
t = nums[i]+nums[i+1]
if t in sums:
return True
else:

return False
``````

## Find Subarrays With Equal Sum LeetCode Solution in Java

``````class Solution {
public boolean findSubarrays(int[] nums) {

if(nums.length<2)
return false;

HashSet<Integer> set=new HashSet<>(); //  To Track previous sum calculated

for(int i=0;i<nums.length-1;i++){

return true;

}

return false;

}
}

``````
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