teamnote history merge

2026-06-03 09:36:52 +09:00
parent f50ed902fe
commit 7176febe54
142 changed files with 13243 additions and 0 deletions
--- a/2025fall/source/Technic/CartesianTree.cpp
+++ b/2025fall/source/Technic/CartesianTree.cpp
@@ -0,0 +1,13 @@
+int A[N], par[N];
+stack<int> st;
+forr(i, n) {
+    int l = -1;
+    while(!st.empty() && A[st.top()] < A[i])
+        l = st.top(), st.pop();
+    if(l != -1) par[l] = i;
+    if(!st.empty()) par[i] = st.top();
+    st.push(i);
+}
+
+while(st.size() != 1) st.pop();
+par[st.top()] = st.top();