Add C++ implementation in Brute Force/Bubble Sort

L Xiaojian · 64json · commit 8bd066fa4cb2 · 2019-12-25T01:27:19.000+09:00
1. Decrease-and-conquer
2. Early termination
diff --git a/Brute Force/Bubble Sort/main.cpp b/Brute Force/Bubble Sort/main.cpp
@@ -0,0 +1,55 @@
+#include "algorithm-visualizer.h"
+
+#define N   15
+#define MIN 1
+#define MAX 20
+
+void BubbleSort(int start, int end, int array[]);
+
+ChartTracer chartTracer("Chart");
+
+int main() {
+    int array[N];
+    Randomize::Array1D<int>(N, *(new Randomize::Integer(MIN, MAX))).fill(&array[0]);
+    chartTracer.set(array);
+    Layout::setRoot(VerticalLayout({ chartTracer }));
+
+    BubbleSort(0, N - 1, array);
+
+    return 0;
+}
+
+void BubbleSort(int start, int end, int array[])
+{
+    chartTracer.select(end);
+
+    int newEnd = start;
+    for(int i = start; i < end; ++i)
+    {
+        chartTracer.select(i);
+        chartTracer.select(i + 1);
+        Tracer::delay();
+        if(array[i] > array[i + 1])
+        {
+            std::swap(array[i], array[i + 1]);
+            chartTracer.patch(i, array[i]);
+            chartTracer.patch(i + 1, array[i + 1]);
+            Tracer::delay();
+            chartTracer.depatch(i);
+            chartTracer.depatch(i + 1);
+            newEnd = i;
+        }
+
+        chartTracer.deselect(i);
+        chartTracer.deselect(i + 1);
+    }
+
+    if(newEnd == start)
+    {
+        return;
+    }
+    else
+    {
+        BubbleSort(start, newEnd, array);
+    }
+}
