From 565add3405b8f46ca5fae0db6b3ad431980dad75 Mon Sep 17 00:00:00 2001
From: hanyixuanten <105723997+hanyixuanten@users.noreply.github.com>
Date: Sun, 19 Jul 2026 17:29:47 +0800
Subject: [PATCH] new file:   P8218.cpp

---
 P8218.cpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 P8218.cpp

diff --git a/P8218.cpp b/P8218.cpp
new file mode 100644
index 0000000..8572c82
--- /dev/null
+++ b/P8218.cpp
@@ -0,0 +1,21 @@
+#include <cstdio>
+using namespace std;
+int n, m;
+int a[100005], pre[100005];
+int main()
+{
+    scanf("%d", &n);
+    for (int i = 1; i <= n; ++i)
+    {
+        scanf("%d", &a[i]);
+        pre[i] = a[i] + pre[i - 1];
+    }
+    scanf("%d", &m);
+    while (m--)
+    {
+        int l, r;
+        scanf("%d%d", &l, &r);
+        printf("%d\n", pre[r] - pre[l - 1]);
+    }
+    return 0;
+}
\ No newline at end of file