From 5e3a377aa6880a96ce4b18153db6b63be258a82a Mon Sep 17 00:00:00 2001
From: Baoshuo <i@baoshuo.ren>
Date: Tue, 1 Nov 2022 07:18:36 +0800
Subject: [PATCH] =?UTF-8?q?#1709.=20=E3=80=902022.10.31=20=E8=81=94?=
 =?UTF-8?q?=E8=80=83=E3=80=91=E5=87=BA=E9=A2=98=EF=BC=88questions=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

https://sjzezoj.com/submission/62647
---
 S2OJ/1709/1709.cpp             | 71 ++++++++++++++++++++++++++++++++++
 S2OJ/1709/data/problem.conf    |  3 ++
 S2OJ/1709/data/questions1.in   |  3 ++
 S2OJ/1709/data/questions1.out  |  3 ++
 S2OJ/1709/data/questions10.in  |  3 ++
 S2OJ/1709/data/questions10.out |  3 ++
 S2OJ/1709/data/questions2.in   |  3 ++
 S2OJ/1709/data/questions2.out  |  3 ++
 S2OJ/1709/data/questions3.in   |  3 ++
 S2OJ/1709/data/questions3.out  |  3 ++
 S2OJ/1709/data/questions4.in   |  3 ++
 S2OJ/1709/data/questions4.out  |  3 ++
 S2OJ/1709/data/questions5.in   |  3 ++
 S2OJ/1709/data/questions5.out  |  3 ++
 S2OJ/1709/data/questions6.in   |  3 ++
 S2OJ/1709/data/questions6.out  |  3 ++
 S2OJ/1709/data/questions7.in   |  3 ++
 S2OJ/1709/data/questions7.out  |  3 ++
 S2OJ/1709/data/questions8.in   |  3 ++
 S2OJ/1709/data/questions8.out  |  3 ++
 S2OJ/1709/data/questions9.in   |  3 ++
 S2OJ/1709/data/questions9.out  |  3 ++
 22 files changed, 134 insertions(+)
 create mode 100644 S2OJ/1709/1709.cpp
 create mode 100644 S2OJ/1709/data/problem.conf
 create mode 100644 S2OJ/1709/data/questions1.in
 create mode 100644 S2OJ/1709/data/questions1.out
 create mode 100644 S2OJ/1709/data/questions10.in
 create mode 100644 S2OJ/1709/data/questions10.out
 create mode 100644 S2OJ/1709/data/questions2.in
 create mode 100644 S2OJ/1709/data/questions2.out
 create mode 100644 S2OJ/1709/data/questions3.in
 create mode 100644 S2OJ/1709/data/questions3.out
 create mode 100644 S2OJ/1709/data/questions4.in
 create mode 100644 S2OJ/1709/data/questions4.out
 create mode 100644 S2OJ/1709/data/questions5.in
 create mode 100644 S2OJ/1709/data/questions5.out
 create mode 100644 S2OJ/1709/data/questions6.in
 create mode 100644 S2OJ/1709/data/questions6.out
 create mode 100644 S2OJ/1709/data/questions7.in
 create mode 100644 S2OJ/1709/data/questions7.out
 create mode 100644 S2OJ/1709/data/questions8.in
 create mode 100644 S2OJ/1709/data/questions8.out
 create mode 100644 S2OJ/1709/data/questions9.in
 create mode 100644 S2OJ/1709/data/questions9.out

diff --git a/S2OJ/1709/1709.cpp b/S2OJ/1709/1709.cpp
new file mode 100644
index 00000000..be9de5a1
--- /dev/null
+++ b/S2OJ/1709/1709.cpp
@@ -0,0 +1,71 @@
+#include <iostream>
+#include <algorithm>
+#include <cmath>
+#include <tuple>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 2e5 + 5;
+
+int n, q, t, a[N], cnt[N], cnt2[N], ans[N];
+std::tuple<int, int, int, int> queries[N];
+
+void add(int x) {
+    cnt2[++cnt[x]]++;
+}
+
+void del(int x) {
+    cnt2[cnt[x]--]--;
+}
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n;
+
+    for (int i = 1; i <= n; i++) {
+        cin >> a[i];
+    }
+
+    cin >> q;
+
+    for (int i = 1; i <= q; i++) {
+        cin >> std::get<1>(queries[i]) >> std::get<2>(queries[i]) >> std::get<3>(queries[i]);
+        std::get<0>(queries[i]) = i;
+    }
+
+    t = std::sqrt(q);
+    std::sort(queries + 1, queries + 1 + q, [&](auto a, auto b) -> bool {
+        int p = std::get<1>(a) / t,
+            q = std::get<1>(b) / t;
+
+        return p == q
+                 ? (p & 1)
+                     ? std::get<2>(a) < std::get<2>(b)
+                     : std::get<2>(a) > std::get<2>(b)
+                 : p < q;
+    });
+
+    cnt2[0] = n;
+    for (int _ = 1, i = 0, j = 1; _ <= q; _++) {
+        int id, l, r, k;
+
+        std::tie(id, l, r, k) = queries[_];
+
+        while (i < r) add(a[++i]);
+        while (i > r) del(a[i--]);
+        while (j > l) add(a[--j]);
+        while (j < l) del(a[j++]);
+
+        ans[id] = cnt2[k];
+    }
+
+    for (int i = 1; i <= q; i++) {
+        cout << ans[i] << endl;
+    }
+
+    return 0;
+}
diff --git a/S2OJ/1709/data/problem.conf b/S2OJ/1709/data/problem.conf
new file mode 100644
index 00000000..827a5050
--- /dev/null
+++ b/S2OJ/1709/data/problem.conf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ab256cbdd7c11e97b61ed000f483ea527bc8620ac3bfa2cfda7b9f4af9dc5ed7
+size 187
diff --git a/S2OJ/1709/data/questions1.in b/S2OJ/1709/data/questions1.in
new file mode 100644
index 00000000..85a72f2c
--- /dev/null
+++ b/S2OJ/1709/data/questions1.in
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diff --git a/S2OJ/1709/data/questions1.out b/S2OJ/1709/data/questions1.out
new file mode 100644
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diff --git a/S2OJ/1709/data/questions10.in b/S2OJ/1709/data/questions10.in
new file mode 100644
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diff --git a/S2OJ/1709/data/questions2.in b/S2OJ/1709/data/questions2.in
new file mode 100644
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new file mode 100644
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diff --git a/S2OJ/1709/data/questions3.in b/S2OJ/1709/data/questions3.in
new file mode 100644
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