Report updated

Author: potat-dev

Turlikov/Report_2/dop_task/main.cpp

@@ -81,74 +81,50 @@ int main() {
   // алгоритм с делением
   cout << endl << "func: 1" << endl;
   for (int bit = 0; bit < 64; bit++) {
-    int64_t duration = 0;
-    for (int i = 0; i < ITERS; i++) {
-      int64_t n = (1LL << bit) + rand() % (1LL << bit);
-      auto t1 = high_resolution_clock::now();
-      // ---- //
-      count_ones_1(n);
-      // ---- //
-      auto t2 = high_resolution_clock::now();
-      duration += duration_cast<microseconds>(t2 - t1).count();
-    }
-    cout << "bit: " << bit + 1
-         << " dur: " << (double) duration / ITERS << " us"
-         << endl;
+    int64_t n = (1LL << bit); // + rand() % (1LL << bit);
+    auto t1 = high_resolution_clock::now();
+    for (int i = 0; i < ITERS; i++, count_ones_1(n));
+    auto t2 = high_resolution_clock::now();
+    uint64_t duration = duration_cast<microseconds>(t2 - t1).count();
+    cout << "bit: " << bit + 1;
+    cout << "\tdur: " << (double) duration / ITERS << " us\n";
   }
 
   // алгоритм с побитовыми операциями
   cout << endl << "func: 2" << endl;
   for (int bit = 0; bit < 64; bit++) {
-    int64_t duration = 0;
-    for (int i = 0; i < ITERS; i++) {
-      int64_t n = (1LL << bit) + rand() % (1LL << bit);
-      auto t1 = high_resolution_clock::now();
-      // ---- //
-      count_ones_2(n);
-      // ---- //
-      auto t2 = high_resolution_clock::now();
-      duration += duration_cast<microseconds>(t2 - t1).count();
-    }
-    cout << "bit: " << bit + 1
-         << " dur: " << (double) duration / ITERS << " us"
-         << endl;
+    int64_t n = (1LL << bit); // + rand() % (1LL << bit);
+    auto t1 = high_resolution_clock::now();
+    for (int i = 0; i < ITERS; i++, count_ones_2(n));
+    auto t2 = high_resolution_clock::now();
+    uint64_t duration = duration_cast<microseconds>(t2 - t1).count();
+    cout << "bit: " << bit + 1;
+    cout << "\tdur: " << (double) duration / ITERS << " us\n";
   }
 
   // алгоритм со вспомогательной таблицей (маленькой)
   cout << endl << "func: 3" << endl;
   for (int bit = 0; bit < 64; bit++) {
-    int64_t duration = 0;
-    for (int i = 0; i < ITERS; i++) {
-      int64_t n = (1LL << bit) + rand() % (1LL << bit);
-      auto t1 = high_resolution_clock::now();
-      // ---- //
-      count_ones_3(n);
-      // ---- //
-      auto t2 = high_resolution_clock::now();
-      duration += duration_cast<microseconds>(t2 - t1).count();
-    }
-    cout << "bit: " << bit + 1
-         << " dur: " << (double) duration / ITERS << " us"
-         << endl;
+    int64_t n = (1LL << bit); // + rand() % (1LL << bit);
+    auto t1 = high_resolution_clock::now();
+    for (int i = 0; i < ITERS; i++, count_ones_3(n));
+    auto t2 = high_resolution_clock::now();
+    uint64_t duration = duration_cast<microseconds>(t2 - t1).count();
+    cout << "bit: " << bit + 1;
+    cout << "\tdur: " << (double) duration / ITERS << " us\n";
   }
 
   // алгоритм со вспомогательной таблицей (большой)
   cout << endl << "func: 4" << endl;
   for (int bit = 0; bit < 64; bit++) {
-    int64_t duration = 0;
-    for (int i = 0; i < ITERS; i++) {
-      int64_t n = (1LL << bit) + rand() % (1LL << bit);
-      auto t1 = high_resolution_clock::now();
-      // ---- //
-      count_ones_4(n);
-      // ---- //
-      auto t2 = high_resolution_clock::now();
-      duration += duration_cast<microseconds>(t2 - t1).count();
-    }
-    cout << "bit: " << bit + 1
-         << " dur: " << (double) duration / ITERS << " us"
-         << endl;
+    int64_t n = (1LL << bit); // + rand() % (1LL << bit);
+    auto t1 = high_resolution_clock::now();
+    for (int i = 0; i < ITERS; i++, count_ones_4(n));
+    auto t2 = high_resolution_clock::now();
+    uint64_t duration = duration_cast<microseconds>(t2 - t1).count();
+    cout << "bit: " << bit + 1;
+    cout << "\tdur: " << (double) duration / ITERS << " us\n";
   }
 
   return 0;
-}
+}