diff options
Diffstat (limited to 'test/string')
| -rw-r--r-- | test/string/suffixTree.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/test/string/suffixTree.cpp b/test/string/suffixTree.cpp index 6f3d912..fd2f5ea 100644 --- a/test/string/suffixTree.cpp +++ b/test/string/suffixTree.cpp @@ -19,7 +19,7 @@ void stress_test() { auto dfs = [&](auto&& self, string pref, ll node) -> void { auto& [l, r, _, next] = st.tree[node]; if (l >= 0) pref += s.substr(l, r - l); - if (pref.back() == '#') got[n + 1 - ssize(pref)] = pref; + if (!pref.empty() && pref.back() == '#') got[n + 1 - ssize(pref)] = pref; for (auto [__, j] : next) { self(self, pref, j); } |