:pencil2: fix SAM in seqam

diff --git a/docs/string/seq-automaton.md b/docs/string/seq-automaton.md
index c39e01c..6330a3e 100644 (file)
--- a/docs/string/seq-automaton.md
+++ b/docs/string/seq-automaton.md
@@ -78,6 +78,7 @@ $$
     
     void insert(int x) {
       int np = ++tot;
+      sam[np].len = sam[p].len + 1;
       while (p && !sam[p].ch[x]) {
         sam[p].ch[x] = np;
         p = sam[p].par;