Update crt.md

diff --git a/docs/math/crt.md b/docs/math/crt.md
index aadbe43..922a663 100644 (file)
--- a/docs/math/crt.md
+++ b/docs/math/crt.md
@@ -112,3 +112,7 @@ $$
 用上面的方法两两合并就可以了……
 
 推荐练习：POJ 2891
+
+[【模板】扩展中国剩余定理](https://www.luogu.org/problemnew/show/P4777)
+
+[[NOI2018]屠龙勇士](https://www.luogu.org/problemnew/show/P4774)