diff --git a/.ACM-Templates/KMP_int.cpp b/.ACM-Templates/KMP_int.cpp
new file mode 100644
index 0000000..16d8bdd
--- /dev/null
+++ b/.ACM-Templates/KMP_int.cpp
@@ -0,0 +1,23 @@
+void MakeNext(int* P,int M,int* Next){
+    Next[0] = -1;
+    int i = 0, j = -1;
+    while(i<M){
+        if(j==-1||P[i]==P[j]){
+            i++,j++;
+            if(P[i]!=P[j])Next[i] = j;
+            else Next[i] = Next[j];
+        }
+        else j = Next[j];
+    }
+}
+int KMP(int* T,int N,int* P,int M)
+{
+    MakeNext(P,M,Next);
+    int i=0,j=0;
+    while(i<N&&j<M){
+        if(T[i]==P[j]||j==-1)i++,j++;
+        else j = Next[j];
+    }
+    if(j==M)return i-M;
+    else return -2;
+}