From 842ce30e1f30042cc41825fbcf67e3768fcebdf4 Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Sun, 21 Nov 2021 18:58:58 +0800
Subject: [PATCH] =?UTF-8?q?P2141=20[NOIP2014=20=E6=99=AE=E5=8F=8A=E7=BB=84?=
 =?UTF-8?q?]=20=E7=8F=A0=E5=BF=83=E7=AE=97=E6=B5=8B=E9=AA=8C?=
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R63301836
---
 Luogu/P2141/P2141.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Luogu/P2141/P2141.cpp

diff --git a/Luogu/P2141/P2141.cpp b/Luogu/P2141/P2141.cpp
new file mode 100644
index 00000000..3e9cd156
--- /dev/null
+++ b/Luogu/P2141/P2141.cpp
@@ -0,0 +1,26 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int n, a[105], ans;
+bool vis[105];
+
+int main() {
+    cin >> n;
+    for (int i = 1; i <= n; i++) {
+        cin >> a[i];
+    }
+    sort(a + 1, a + 1 + n);
+    for (int i = 1; i < n - 1; i++) {
+        for (int j = i + 1; j < n; j++) {
+            for (int k = j + 1; k <= n; k++) {
+                if (a[i] + a[j] == a[k] && !vis[k]) {
+                    ans++;
+                    vis[k] = true;
+                }
+            }
+        }
+    }
+    cout << ans << endl;
+    return 0;
+}