Create Partition Equal Subset Sum.cpp

Author: Its-Aman-Yadav

Medium Problems/Partition Equal Subset Sum.cpp

@@ -0,0 +1,20 @@
+//https://leetcode.com/problems/partition-equal-subset-sum/description/
+
+class Solution {
+public:
+    bool canPartition(vector<int>& nums) {
+        int sum = accumulate(nums.begin(), nums.end(), 0);
+        vector<bool> dp(sum + 1, 0);
+        if (sum&1) return false;
+        dp[sum/2] = true;
+        for (int i = 1; i < nums.size(); i++){
+            for (int currsum = sum; currsum >= sum/2; currsum--){
+                bool notTake = dp[currsum];
+                bool take = false;
+                if (currsum >= nums[i]) take = dp[currsum - nums[i]];
+                dp[currsum] = notTake || take;
+            }
+        }
+        return dp[sum];
+    }
+};