[file ]: codeforce add template

.gitignore

@@ -14,6 +14,6 @@
 *.in
 .vscode
 *.sh
-Makefile
 a
 .clang-format
+codeforce/cf.cpp

codeforce/Makefile

@@ -0,0 +1,8 @@
+all:
+	g++ cf.cpp -DDEBUG -g -std=c++17 -o a
+	./a
+
+new:
+	-@rm cf.cpp in.in
+	cp template.cpp cf.cpp
+	touch in.in

codeforce/template.cpp

@@ -0,0 +1,23 @@
+#define MAXN 2000000000
+#define llu unsigned long long
+#include <algorithm>
+#include <cassert>
+#include <cmath>
+#include <iostream>
+#include <utility>
+#include <vector>
+#include <bits/stdc++.h>
+using namespace std;
+
+
+int main() {
+#ifdef DEBUG
+    freopen("in.in", "r", stdin);
+#endif
+    ios_base::sync_with_stdio(0);
+    cin.tie(0);
+
+    // do something
+
+    return 0;
+}