1 files changed, 18 insertions, 0 deletions

diff --git a/random.cpp b/random.cpp
new file mode 100644
index 0000000..92a3c4c
--- /dev/null
+++ b/random.cpp
@@ -0,0 +1,18 @@
+
+long long rand_state = 24;
+long long rand_para1 = 37;
+long long rand_para2 = 37;
+
+int randn()
+{
+        rand_state = (rand_state*rand_state + rand_state*rand_para1 +rand_para2)%15555557;
+        return rand_state;
+}
+
+//seed with number from 0 to 672
+void srandn(int seed)
+{
+        rand_state = seed + 2753;
+        
+                randn();
+}