From 85296957a8d755cda80c5dc00dcef4555ff14ebc Mon Sep 17 00:00:00 2001
From: KunoiSayami <i@leanhe.dev>
Date: Mon, 20 Jun 2022 16:15:34 +0800
Subject: fix(script): Fix normal distribution generator * feat(script): Add
 p.d.f. and c.d.f. painter

Signed-off-by: KunoiSayami <i@leanhe.dev>
---
 normal_distribution.cpp | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

(limited to 'normal_distribution.cpp')

diff --git a/normal_distribution.cpp b/normal_distribution.cpp
index c9cf701..fd52ac1 100644
--- a/normal_distribution.cpp
+++ b/normal_distribution.cpp
@@ -1,6 +1,11 @@
 #include <algorithm>
 #include <cstdio>
 #include <random>
+#include <set>
+#include <vector>
+
+constexpr size_t length = 1048576;
+
 int main() {
 
   std::random_device randomDevice;
@@ -8,9 +13,21 @@ int main() {
   std::normal_distribution<long double> normalDistribution(2147483647,
                                                            2147483647);
 
-  for (int i = 0; i < 1048576; i++) {
-    printf("%llu\n",
-           (unsigned long long)std::round(normalDistribution(randomEngine)));
+  std::set<long long> set;
+
+  std::vector<long long> vector;
+
+  vector.reserve(length);
+
+  while (set.size() != length) {
+    auto element = (long long)std::round(normalDistribution(randomEngine));
+    auto ret = set.insert(element);
+    if (ret.second)
+      vector.push_back(element);
+  }
+
+  for (long long element : vector) {
+    printf("%lld\n", element);
   }
 
   return 0;
-- 
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