diff --git a/ypsu.cpp b/ypsu.cpp
deleted file mode 100644
index 1d11e51..0000000
--- a/ypsu.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-  #include <algorithm>
-  #include <cassert>
-  #include <chrono>
-  #include <climits>
-  #include <cstdint>
-  #include <cstdio>
-  #include <cstring>
-  #include <functional>
-  #include <map>
-  #include <set>
-  #include <string>
-  #include <vector>
-  #include "ska_sort.hpp"
-  #include "magyarsort.h"
-  std::map<std::string, double> results;
-  std::map<std::string, double> worst;
-  void measure(const std::string &inputtype, const std::string &name,
-               std::function<void()> f) {
-    auto begin = std::chrono::high_resolution_clock::now();
-    f();
-    auto dur = std::chrono::high_resolution_clock::now() - begin;
-    double seconds = dur / std::chrono::milliseconds(1) / 1000.0;
-    results[name] = seconds;
-    worst[name] = std::max(worst[name], seconds);
-  }
-  std::vector<std::string> inputtypes = {
-      "constant", "asc",      "desc",       "ascasc", "ascdesc",
-      "descasc",  "descdesc", "smallrange", "rand",
-  };
-  std::vector<uint32_t> geninput(const std::string &type, int n) {
-    std::vector<uint32_t> v(n);
-    if (type == "constant") {
-      int c = rand();
-      for (int i = 0; i < n; i++) {
-        v[i] = c;
-      }
-    } else if (type == "asc") {
-      for (int i = 0; i < n; i++) {
-        v[i] = i;
-      }
-    } else if (type == "desc") {
-      for (int i = 0; i < n; i++) {
-        v[i] = n - i;
-      }
-    } else if (type == "ascasc") {
-      for (int i = 0; i < n / 2; i++) {
-        v[i] = i;
-        v[i + n / 2] = i;
-      }
-    } else if (type == "ascdesc") {
-      for (int i = 0; i < n / 2; i++) {
-        v[i] = i;
-        v[i + n / 2] = n - i;
-      }
-    } else if (type == "descasc") {
-      for (int i = 0; i < n / 2; i++) {
-        v[i] = n - i;
-        v[i + n / 2] = i;
-      }
-    } else if (type == "descdesc") {
-      for (int i = 0; i < n / 2; i++) {
-        v[i] = n - i;
-        v[i + n / 2] = n - i;
-      }
-    } else if (type == "smallrange") {
-      int c = rand() / 2;
-      for (int i = 0; i < n; i++) {
-        v[i] = c + rand() % 100;
-      }
-    } else if (type == "rand") {
-      for (int i = 0; i < n; i++) {
-        v[i] = rand();
-      }
-    }
-    return v;
-  }
-  int main(void) {
-    int n = 100000000;
-    for (auto inputtype : inputtypes) {
-      printf("%10s", inputtype.c_str());
-      fflush(stdout);
-      std::vector<uint32_t> v(n), w(n), expected(n);
-      v = geninput(inputtype, n);
-      measure(inputtype, "copy", [&] { w = v; });
-      w = v;
-      measure(inputtype, "std", [&] { std::sort(std::begin(w), std::end(w)); });
-      expected = w;
-      w = v;
-      measure(inputtype, "ska", [&] { ska_sort(std::begin(w), std::end(w)); });
-      w = v;
-      measure(inputtype, "ska_copy", [&] {
-        std::vector<uint32_t> buf(w.size());
-        if (ska_sort_copy(std::begin(w), std::end(w), std::begin(buf))) {
-          w.swap(buf);
-        }
-      });
-      w = v;
-      measure(inputtype, "magyar", [&] { MagyarSort::sort(&w[0], w.size()); });
-      assert(w == expected);
-      for (auto r : results) printf("%9.3fs", r.second);
-      puts("");
-    }
-    puts("");
-    printf("%10s", "worst");
-    for (auto w : worst) printf("%9.3fs", w.second);
-    puts("");
-    printf("%10s", "");
-    for (auto w : worst) printf("%10s", w.first.c_str());
-    puts("");
-    return 0;
-  }