From 5558047439286de05bac5d40f2488654553cddc9 Mon Sep 17 00:00:00 2001
From: Luthics <luthics@foxmail.com>
Date: Sun, 6 Nov 2022 14:08:29 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E7=AC=AC=E4=B8=89=E6=AC=A1?=
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---
 test/3/2.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/test/3/2.py b/test/3/2.py
index d6ed205..d48a3a5 100644
--- a/test/3/2.py
+++ b/test/3/2.py
@@ -3,9 +3,6 @@ a = int(n.split('-')[1])  # 暴力取出小数位数和精度
 i = 1
 s = 0
 while (1 / (2 * i - 1) >= 10**(-a)):  # 精度要求作为条件
-    if (i % 2 == 0):
-        s -= 1 / (2 * i - 1)
-    else:
-        s += 1 / (2 * i - 1)
+    s += (-1)**(i % 2 + 1) / (2 * i - 1)
     i += 1
 print(("{:." + str(a) + "f}").format(s * 4))