diff --git a/roundrobin_scheduling.cpp b/roundrobin_scheduling.cpp
index 2c2afe0..2c1585b 100644
--- a/roundrobin_scheduling.cpp
+++ b/roundrobin_scheduling.cpp
@@ -2,6 +2,7 @@
 #include <algorithm> 
 #include <iomanip>
 #include <queue> 
+#include <cstring>
 using namespace std;
 
 struct process {
@@ -160,4 +161,4 @@ TAT = CT - AT
 WT = TAT - BT
 RT = ST - AT
 
-*/
\ No newline at end of file
+*/