From 0de21a3bd313c3f2d53edd34982c5944894f23a1 Mon Sep 17 00:00:00 2001
From: Zengtudor <Zengtudor@outlook.com>
Date: Thu, 27 Nov 2025 11:00:06 +0800
Subject: [PATCH] =?UTF-8?q?fix(P6627):=20=E4=BF=AE=E5=A4=8D=E8=BE=B9?=
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扩展映射表的键范围以包含更多边界情况，确保正确性
在结果比较时增加绝对值条件，优化最终答案选择
---
 src/11/27/P6627.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/11/27/P6627.cpp b/src/11/27/P6627.cpp
index 9c6e02c..c0f0b62 100644
--- a/src/11/27/P6627.cpp
+++ b/src/11/27/P6627.cpp
@@ -1,6 +1,7 @@
 #include <algorithm>
 #include <cstdint>
 #include <cstdio>
+#include <cstdlib>
 #include <iostream>
 #include <istream>
 #include <map>
@@ -18,17 +19,18 @@ int main(){
 
     std::cin>>n;
     l.resize(n+1);r.resize(n+1);w.resize(n+1);a.resize(n+1);b.resize(n+1);t.resize(n+1);
+    m[0]=0;
     for(ll i=1;i<=n;i++){
         std::cin>>t[i];
         if(t[i]==1){
             std::cin>>l[i]>>r[i]>>w[i];
-            m[l[i]]=m[r[i]]=m[r[i]+1]=0;
+            m[l[i]-1]=m[l[i]]=m[l[i]+1]=m[r[i]-1]=m[r[i]]=m[r[i]+1]=m[r[i]+2]=0;
         }else if(t[i]==2){
             std::cin>>a[i]>>w[i];
-            m[a[i]]=0;
+            m[a[i]-1]=m[a[i]]=m[a[i]+1]=0;
         }else{
             std::cin>>b[i]>>w[i];
-            m[b[i]]=0;
+            m[b[i]-1]=m[b[i]]=m[b[i]+1]=0;
         }
     }
     ll idx=1;
@@ -61,6 +63,10 @@ int main(){
         nans^=eq[i];
         nans^=xr[i];
         nans^=anq^nq[i];
+        if(nans==ans && std::abs(rp->first)<std::abs(ansi)){
+            ansi=rp->first;
+            ans=nans;
+        }
         if(nans>ans){
             ansi=rp->first;
             ans=nans;