From 3a00516effaacb391bdeff369cb8b28893642e98 Mon Sep 17 00:00:00 2001
From: arielherself <ariel@arielherself.xyz>
Date: Sat, 2 Dec 2023 11:57:02 +0800
Subject: [PATCH]

---
 segtree/segtree-d.cc | 8 ++++----
 segtree/segtree.cc   | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/segtree/segtree-d.cc b/segtree/segtree-d.cc
index 42ec878..bf25d57 100644
--- a/segtree/segtree-d.cc
+++ b/segtree/segtree-d.cc
@@ -9,8 +9,8 @@ void update(int s,int t,int &p,int x,int c){  // add constant c to #x
         return;
     }
     int m=s+(t-s>>1);
-    if(x<=m)update(ls[p],s,m,x,c);
-    else    update(rs[p],m+1,t,x,c);
+    if(x<=m)update(s,m,ls[p],x,c);
+    else    update(m+1,t,rs[p],x,c);
     d[p]=d[ls[p]]+d[rs[p]];
 }
 
@@ -18,7 +18,7 @@ int query(int s,int t,int p,int l,int r){  // query range [l,r]
     if(!p)return 0;
     if(l<=s&&t<=r)return d[p];
     int m=s+(t-s>>1),sum=0;
-    if(l<=m)sum+=query(ls[p],s,m,l,r);
-    if(r>m) sum+=query(rs[p],m+1,t,l,r);
+    if(l<=m)sum+=query(s,m,ls[p],l,r);
+    if(r>m) sum+=query(m+1,t,rs[p],l,r);
     return sum;
 }
diff --git a/segtree/segtree.cc b/segtree/segtree.cc
index d7d09fd..860f83f 100644
--- a/segtree/segtree.cc
+++ b/segtree/segtree.cc
@@ -19,8 +19,8 @@ int getsum(int s,int t,int p,int l,int r){
         b[p*2]+=b[p],b[p*2+1]+=b[p];
         b[p]=0;
     }
-    if(l<=m)sum+=getsum(l,r,s,m,p*2);
-    if(r>m) sum+=getsum(l,r,m+1,t,p*2+1);
+    if(l<=m)sum+=getsum(s,m,p*2,l,r);
+    if(r>m) sum+=getsum(m+1,t,p*2+1,l,r);
     return sum;
 }
 
@@ -36,7 +36,7 @@ void update(int s,int t,int p,int l,int r,int c) {  // difference c
         b[p*2]+=b[p],b[p*2+1]+=b[p];
         b[p]=0;
     }
-    if(l<=m)update(l,r,c,s,m,p*2);
-    if(r>m) update(l,r,c,m+1,t,p*2+1);
+    if(l<=m)update(s,m,p*2,l,r,c);
+    if(r>m) update(m+1,t,p*2+1,l,r,c);
     d[p]=d[p*2]+d[p*2+1];
 }