add vector

vector/data/two/code.cpp

@@ -0,0 +1,22 @@
+#include "vector.hpp"
+
+#include <iostream>
+
+#include <vector>
+
+int main()
+{
+	sjtu::vector<long long> v;
+	for (long long i = 0; i < 1LL << 20; ++i) {
+		v.push_back(i);
+	}
+	std::cout << v.back() << std::endl;
+	for (long long i = 0; i < 1LL << 11; ++i) {
+		v.insert(v.begin(), i);
+	}
+	for (size_t i = 0; i < 1LL << 10; ++i) {
+		std::cout << v.front() << std::endl;
+		v.erase(v.begin());
+	}
+	return 0;
+}