From 2f405dc33e539ec448dc820b46cc1790991b47f1 Mon Sep 17 00:00:00 2001
From: aucker <aucker@qq.com>
Date: Tue, 18 Jun 2024 18:55:29 +0800
Subject: [PATCH] June18: stringstream processing [M]

learning stringstream, Time/Space: O(N)
---
 daily/June18.cpp | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 daily/June18.cpp

diff --git a/daily/June18.cpp b/daily/June18.cpp
new file mode 100644
index 0000000..aa562ad
--- /dev/null
+++ b/daily/June18.cpp
@@ -0,0 +1,37 @@
+#include <bits/stdc++.h>
+
+#include <iomanip>
+#include <sstream>
+using namespace std;
+
+class Solution {
+ public:
+  /**
+   * @brief LC: 2288: Apply Discount to Prices
+   * Time: O(N), Space: O(N)
+   *
+   * @param sentence
+   * @param discount
+   * @return string
+   */
+  string discountPrices(string sentence, int discount) {
+    double d = 1 - discount / 100.0;
+    stringstream ss(sentence);
+    string ans, w;
+    while (ss >> w) {  // split and add to ans
+      if (!ans.empty()) {
+        ans += ' ';
+      }
+      if (w.length() > 1 && w[0] == '$' &&
+          all_of(w.begin() + 1, w.end(), ::isdigit)) {
+        stringstream s;
+        s << fixed << setprecision(2) << '$' << stoll(w.substr(1)) * d;
+        ans += s.str();
+      } else {
+        ans += w;
+      }
+    }
+
+    return ans;
+  }
+};
\ No newline at end of file