diff --git a/.vscode/settings.json b/.vscode/settings.json
index 2c4cf1d..fb4d0bb 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -60,5 +60,6 @@
         "cinttypes": "cpp",
         "typeinfo": "cpp",
         "strstream": "cpp"
-    }
+    },
+    "C_Cpp.errorSquiggles": "enabledIfIncludesResolve"
 }
\ No newline at end of file
diff --git a/C++/scripts/md5 b/C++/scripts/md5
index 5520048..da48c26 100644
--- a/C++/scripts/md5
+++ b/C++/scripts/md5
@@ -1,7 +1,7 @@
 build.sh:c073187e65d0e23aa77aa94af4ec6382  -
 commit.sh:1af81bf417dfb932284d8a14fdd10657  -
-debug.sh:849488515cab075948653c15eec4177b  -
+debug.sh:8125f303032b6cbc137223df63d10096  -
 lines.sh:3b907786f7fc9204025993016c9080de  -
-release.sh:0ab321c3fa2f1a1b2f03b1aec3bce816  -
+release.sh:b1ce8461a303e8e7aa9ed74259db3873  -
 temp:d41d8cd98f00b204e9800998ecf8427e  -
-web.sh:4bbe9c5710a0ae4289468c3f7f340ff1  -
+web.sh:dd7eec9825587db99063877da2839506  -
diff --git a/C++ProjectTemplate b/C++ProjectTemplate
index c678470..29534df 100755
Binary files a/C++ProjectTemplate and b/C++ProjectTemplate differ
diff --git a/main.cpp b/main.cpp
index dbb67ae..4191b9d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,4 +1,5 @@
 #include "pixelGameEngine.h"
+#include "utils.h"
 
 using namespace olc;
 
@@ -60,9 +61,8 @@ struct Data{
 
 int main()
 {	
-	Example demo;
-	if (demo.Construct(640, 480, 4, 4))
-		demo.Start();
-
+	utils::PowMod(5,117,19);
+	utils::PowMod(5,117,19);
+	std::cout<<"Works!"<<std::endl;
 	return 0;
 }
diff --git a/pixelGameEngine.cpp b/pixelGameEngine.cpp
index c8488f8..c79dd29 100644
--- a/pixelGameEngine.cpp
+++ b/pixelGameEngine.cpp
@@ -1,2 +1,3 @@
 #define OLC_PGE_APPLICATION
+#define OLC_PGE_HEADLESS
 #include "pixelGameEngine.h"
\ No newline at end of file
diff --git a/pixelGameEngine.o b/pixelGameEngine.o
index 4f5be2d..daa4991 100644
Binary files a/pixelGameEngine.o and b/pixelGameEngine.o differ
diff --git a/sig b/sig
index b29b259..5cc1e85 100755
--- a/sig
+++ b/sig
@@ -3,7 +3,7 @@ export AUTO_UPDATE=true
 source utils/define.sh
 
 define PROJECT_NAME "C++ProjectTemplate"
-define CUSTOM_PARAMS "-std=c++17 -lX11 -lGL -lpthread -lpng -lstdc++fs -I/usr/include/lua5.3"
+define CUSTOM_PARAMS "-std=c++17 -lX11 -lpthread -lpng -lstdc++fs -I/usr/include/lua5.3"
 define LANGUAGE "C++"
 
 source utils/main.sh
diff --git a/utils.cpp b/utils.cpp
new file mode 100644
index 0000000..093a366
--- /dev/null
+++ b/utils.cpp
@@ -0,0 +1,18 @@
+#include "utils.h"
+#include <cmath>
+
+std::map<internal::PowModStruct,int>utils::mapping;
+
+int utils::PowMod(int a,int b, int mod){
+    int shift=0;
+    for(int n=1;n<=b;n*=2){
+        if(utils::mapping.find({a,n,mod})!=utils::mapping.end()){
+            std::cout<<internal::PowModStruct{a,n,mod}<<"="<<utils::mapping[{a,n,mod}]<<std::endl;
+            continue;
+        }
+        std::cout<<std::fmod(std::pow(double(a),double(n)),double(mod))<<std::endl;
+        utils::mapping[{a,n,mod}]=std::fmod(std::pow(double(a),double(n)),double(mod));
+        shift++;
+    }
+    return 0;
+}
\ No newline at end of file
diff --git a/utils.h b/utils.h
new file mode 100644
index 0000000..91a0389
--- /dev/null
+++ b/utils.h
@@ -0,0 +1,20 @@
+#pragma once
+#include <map>
+#include <iostream>
+
+namespace internal{
+    struct PowModStruct{
+        int a,b,mod;
+        friend std::ostream& operator << (std::ostream& os, const internal::PowModStruct& rhs) { os << rhs.a << "^" << rhs.b << "%" << rhs.mod; return os; };
+        bool operator<(const internal::PowModStruct&rhs)const{return a<rhs.a||b<rhs.b||mod<rhs.mod;};
+    };
+}
+
+class utils{
+    utils()=delete;
+    utils(utils&utils)=delete;
+    static std::map<internal::PowModStruct,int>mapping;
+    public:
+    //a^b % mod
+    static int PowMod(int a,int b,int mod);
+};
\ No newline at end of file