From bc7231084a0a04382523162be7aee8ac402fade1 Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Sun, 4 Jul 2021 11:14:24 +0800
Subject: [PATCH] =?UTF-8?q?P5019=20[NOIP2018=20=E6=8F=90=E9=AB=98=E7=BB=84?=
 =?UTF-8?q?]=20=E9=93=BA=E8=AE=BE=E9=81=93=E8=B7=AF?=
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R52369318
---
 Luogu/problem/P5019/P5019.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Luogu/problem/P5019/P5019.cpp

diff --git a/Luogu/problem/P5019/P5019.cpp b/Luogu/problem/P5019/P5019.cpp
new file mode 100644
index 00000000..7f5a6ff6
--- /dev/null
+++ b/Luogu/problem/P5019/P5019.cpp
@@ -0,0 +1,17 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    long long n, a[1000005], s;
+    cin >> n;
+    for (int i = 0; i < n; i++) {
+        cin >> a[i];
+    }
+    s = a[0];
+    for (int i = 1; i < n; i++) {
+        s += max(0ll, a[i] - a[i - 1]);
+    }
+    cout << s << endl;
+    return 0;
+}