P14440 [GeeksforGeeks] Subset sum problem2014
普及
题目描述

Given an array arr[] of size N, check if it can be partitioned into two parts such that the sum of elements in both parts is the same.
Example 1:
Input: N = 4
arr = {1, 5, 11, 5}
Output: YES
Explanation:
The two parts are {1, 5, 5} and {11}.
Example 2:
Input: N = 3
arr = {1, 3, 5}
Output: NO
Explanation: This array can never be
partitioned into two such parts.
Your Task:
You do not need to read input or print anything. Your task is to complete the function equalPartition() which takes the value N and the array as input parameters and returns 1 if the partition is possible. Otherwise, returns 0.
Expected Time Complexity: O(Nsum of elements)
Expected Auxiliary Space: O(N
sum of elements)
Constraints:
1 ≤ N ≤ 100
1 ≤ arr[i] ≤ 1000
Nsum of elements ≤ 510^{6}

输入格式

见题面

输出格式

见题面

样例输入
N = 4 arr = {1, 5, 11, 5}
样例输出
YES