.gitignore

@@ -1,5 +1,3 @@
 build
-cmake-build-debug
-cmake-build-release
 .cache
-.idea
+

.idea/.gitignore

@@ -1,8 +0,0 @@
-# 디폴트 무시된 파일
-/shelf/
-/workspace.xml
-# 에디터 기반 HTTP 클라이언트 요청
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

CMakeLists.txt

@@ -4,10 +4,8 @@ project(mathematical-algorithms)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED true)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-# set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -funroll-loops")
 
-add_compile_options(-Wall -Wextra -Wpedantic -O2 -funroll-loops)
+add_compile_options(-Wall -Wextra -Wpedantic)
+
+add_executable(mathematical-algorithms src/main.cpp)
 
-add_executable(karatsuba src/karatsuba.cpp)
-add_executable(pseudorandom src/pseudorandom.cpp)
-add_executable(types src/types.cpp)

src/main.cpp

@@ -21,8 +21,7 @@ template <typename T> ostream &operator<<(ostream &os, const vector<T> &v) {
   return os;
 }
 
-
-vector<Real> random_real_vector(size_t size) {
+vector<Real> random_real_vector(int size) {
   auto result = vector<Real>();
   for (int i = 0; i < size; i++) {
     result.push_back((double)rand() / (double)RAND_MAX);
@@ -85,7 +84,6 @@ template <typename R> vector<R> poly_mult_basic(vector<R> &a, vector<R> &b) {
   return res;
 }
 
-#define THRESHOLD 1
 // TODO Reduce allocations
 
 /**
@@ -95,7 +93,7 @@ template <typename R> vector<R> poly_mult_basic(vector<R> &a, vector<R> &b) {
 template <typename R>
 vector<R> poly_mult_Karatsuba_step(const size_t deg_bnd, vector<R> &a,
                                    vector<R> &b) {
-  if (deg_bnd <= THRESHOLD)
+  if (deg_bnd <= 1)
     return poly_mult_basic(a, b);
 
   const auto next_bnd = deg_bnd >> 1;
@@ -150,8 +148,8 @@ void basic_vs_Karatsuba(size_t size) {
 
 int main() {
   {
-    auto p = vector<int>{1, 2};
-    auto q = vector<int>{3, 4, 5};
+    auto p = vector<Real>{1.0, 2.0};
+    auto q = vector<Real>{3.0, 4.0, 5.0};
     cout << "P: " << p << endl;
     cout << "Q: " << q << endl;
     cout << "P + Q: " << poly_add(p, q) << endl;
@@ -169,13 +167,13 @@ int main() {
     cout << "Karatsuba P * Q: " << poly_mult_Karatsuba(p, q) << endl;
   }
 
-  basic_vs_Karatsuba(128);
-  basic_vs_Karatsuba(256);
-  basic_vs_Karatsuba(512);
-  basic_vs_Karatsuba(1024);
-  basic_vs_Karatsuba(2048);
-  basic_vs_Karatsuba(4096);
-  basic_vs_Karatsuba(8192);
+  basic_vs_Karatsuba(125);
+  basic_vs_Karatsuba(250);
+  basic_vs_Karatsuba(500);
+  basic_vs_Karatsuba(1000);
+  basic_vs_Karatsuba(2000);
+  // Approaches at this point
+  basic_vs_Karatsuba(4000);
 
   // {
   //   auto p = random_real_vector(4000);

src/pseudorandom.cpp

@@ -1,11 +0,0 @@
-#include <cstdint>
-#include <iostream>
-using namespace std;
-
-uint16_t linear_congruence(uint16_t a, uint16_t c, uint16_t prev) {
-    return a * prev + c;
-}
-
-int main() {
-    cout << "Hello World!" << endl;
-}

src/types.cpp

@@ -1,76 +0,0 @@
-/*
- * Until next time, let's boilerplate later
- */
-#include <cmath>
-#include <iostream>
-using namespace std;
-
-template<typename R>
-struct rational {
-  R num;
-  R denom;
-};
-
-template<typename R>
-rational<R> operator+(rational<R> &l, rational<R> &r) {
-  return rational(l.num * r.denom + r.num * l.denom, l.denom * r.denom);
-}
-
-template<typename R>
-rational<R> operator-(rational<R> &l, rational<R> &r) {
-  return rational(l.num * r.denom - r.num * l.denom, l.denom * r.denom);
-}
-
-template<typename R>
-rational<R> operator*(rational<R> &l, rational<R> &r) {
-  return rational(l.num * r.num, l.denom * r.denom);
-}
-
-template<typename R>
-rational<R> operator/(rational<R> &l, rational<R> &r) {
-  return rational(l.num * r.denom, r.denom * l.num);
-}
-
-// TODO Take care of normalization
-template<typename R>
-bool operator==(rational<R> &l, rational<R> &r) {
-  return l.num == r.num && l.denom == r.denom;
-}
-
-template<typename R>
-bool operator!=(rational<R> &l, rational<R> &r) {
-  return l.num != r.num || l.denom != r.denom;
-}
-
-/*
-template<typename R>
-ostream operator<< (ostream &os, rational<R> &r) {
-
-}
-*/
-
-template<unsigned int>
-struct prime_field {
-  size_t number;
-};
-
-template<unsigned int p>
-prime_field<p> operator+(const prime_field<p> &l, const prime_field<p> &r) {
-  return prime_field(l.number + r.number % p);
-}
-
-template<unsigned int p>
-prime_field<p> operator-(const prime_field<p> &l, const prime_field<p> &r) {
-  return prime_field(l.number - r.number % p);
-}
-
-template<unsigned int p>
-prime_field<p> operator*(const prime_field<p> &l, const prime_field<p> &r) {
-  return prime_field(l.number * r.number % p);
-}
-
-// TODO /, ==, !=
-
-int main() {
-  cout << "Hello World!" << endl;
-}