'commit'

TangDou/LanQiaoBei/LanQiao14GuoSai/2_1.cpp

@@ -0,0 +1,22 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+const int N = 1e6 + 10;
+int a[N];
+int b[N]; // 开1e6不够，开2e9就会MLE，用桶是不行的
+int main() {
+    int n;
+    cin >> n;
+    for (int i = 1; i <= n; i++) cin >> a[i], b[a[i]]++;
+    bool flag = false;
+    for (int i = 1; i <= n; i++)
+        if (b[a[i]] > n / 2) {
+            cout << a[i];
+            flag = true;
+            break;
+        }
+
+    if (!flag) cout << "No";
+
+    return 0;
+}