561. Array Partition I

Author: amitbansal7

array-partition-i.cpp

@@ -0,0 +1,14 @@
+//Runtime: 76 ms
+class Solution {
+public:
+	int arrayPairSum(vector<int>& nums) {
+		sort(nums.begin(), nums.end());
+		int res = 0;
+		for (int i = 0; i < nums.size(); i++) {
+			if (i % 2 == 0) {
+				res += nums[i];
+			}
+		}
+		return res;
+	}
+};