fix bug.

[KeepRunning90]

Modify the file "xdl-algorithm-solution/TDM/src/tdm/bitmap_test.cc" as follows：

--- a/xdl-algorithm-solution/TDM/src/tdm/bitmap_test.cc
+++ b/xdl-algorithm-solution/TDM/src/tdm/bitmap_test.cc
@@ -34,15 +34,15 @@ TEST(Bitmap, TestSetFilter) {
   ASSERT_TRUE(bitmap.set_filter(index, true));
   ASSERT_TRUE(bitmap.is_filtered(index));
 
-  index = 1000;
+  index = 100000;
   ASSERT_TRUE(bitmap.set_filter(index, true));
   ASSERT_TRUE(bitmap.is_filtered(index));
 
-  index = 2000;
+  index = 200000;
   ASSERT_TRUE(bitmap.set_filter(index, true));
   ASSERT_TRUE(bitmap.is_filtered(index));
 
-  index = 5000;
+  index = 500000;
   ASSERT_TRUE(bitmap.set_filter(index, true));
   ASSERT_TRUE(bitmap.is_filtered(index));
 
@@ -51,7 +51,12 @@ TEST(Bitmap, TestSetFilter) {
 
 TEST(Bitmap, TestSave) {
   Bitmap bitmap("bitmap.bm");
-  ASSERT_TRUE(bitmap.is_filtered(5000));
+  ASSERT_TRUE(bitmap.is_filtered(500000));

The running result is：
[==========] Running 3 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 3 tests from Bitmap
[ RUN ] Bitmap.TestConstructor
[ OK ] Bitmap.TestConstructor (0 ms)
[ RUN ] Bitmap.TestSetFilter
Segmentation fault (core dumped)

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