add: 220601 [cpp]

cpp/2206/220601.cpp

@@ -0,0 +1,17 @@
+#include <vector>
+
+/**
+ * 1480. Running Sum of 1d Array
+ * Given an array nums. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i]).
+ */
+
+class Solution {
+public:
+	static std::vector<int> runningSum(const std::vector<int>& nums) {
+		std::vector<int> ret(nums.size());
+		ret[0] = nums[0];
+		for (int i = 1; i < nums.size(); ++i)
+			ret[i] = ret[i - 1] + nums[i];
+		return ret;
+	}
+};