Create Split array in three equal sum subarrays

Split array in three equal sum subarrays

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+//Split array in three equal sum subarrays
+
+import java.io.*;
+import java.util.*;
+
+class GFG {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int testCases = Integer.parseInt(br.readLine().trim());
+
+        while(testCases-- > 0) {
+            String[] str = br.readLine().trim().split(" ");
+            int[] arr = new int[str.length];
+
+            for(int i = 0; i < str.length; i++) {
+                arr[i] = Integer.parseInt(str[i]);
+            }
+
+            Solution ob = new Solution();
+            List<Integer> result = ob.findSplit(arr);
+
+            if(result.get(0) == -1 && result.get(1) == -1 || result.size() != 2) {
+                System.out.println("false");
+            }
+            else {
+                int sum1 = 0, sum2 = 0, sum3 = 0;
+
+                for(int i = 0; i < arr.length; i++) {
+                    if(i <= result.get(0)) {
+                        sum1 += arr[i];
+                    }
+                    else if (i <= result.get(1)) {
+                        sum2 += arr[i];
+                    }
+                    else {
+                        sum3 += arr[i];
+                    }
+                }
+
+                if(sum1 == sum2 && sum2 == sum3) {
+                    System.out.println("true");
+                }
+                else {
+                    System.out.println("false");
+                }
+            }
+            System.out.println("~");
+        }
+    }
+}
+
+class Solution {
+    public List<Integer> findSplit(int[] arr) {
+        List<Integer> res = new ArrayList<>();
+        int n = arr.length;
+        int resIdx = 0;
+        int total = 0;
+
+        if(arr.length == 0) {
+            return new ArrayList<>();
+        }
+
+        for(int i = 0; i < n; i++) {
+            total += arr[i];
+        }
+
+        if(total % 3 != 0) {
+            res.add(-1);
+            res.add(-1);
+
+            return res;
+        }
+
+        int currSum = 0;
+
+        for(int i = 0; i < n; i++) {
+            currSum += arr[i];
+
+            if(currSum == total / 3) {
+                currSum = 0;
+                res.add(i);
+                resIdx++;
+
+                if(resIdx == 2 && i < n - 1) {
+                    return res;
+                }
+            }
+        }
+
+        res.add(-1);
+        res.add(-1);
+
+        return res;
+    }
+}