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Author: kerong2002

C++/1701. Average Waiting Time.cpp

@@ -0,0 +1,19 @@
+class Solution {
+public:
+    double averageWaitingTime(vector<vector<int>>& customers) {
+        int time = customers[0][0];
+        double ans = 0;
+        for (int x = 0; x < customers.size(); ++x) {
+            if (time < customers[x][0]) {
+                time = customers[x][0] + customers[x][1];
+            }
+            else {
+                time += customers[x][1];
+            }
+            ans += time - customers[x][0];
+            // cout << ans << "," << time << endl;
+        }
+        ans /= (double)customers.size();
+        return ans;
+    }
+};