Modified the plotting method.
Modified the plotting method.

The goal is to get all algorithms and all test cases at once,
and show the nearly added metrics.

chenmoshushi/hashmap,loversInJapan/hashmap,chenmoshushi/hashmap,chenmoshushi/hashmap,SproutOrc/hashmap,SproutOrc/hashmap,goossaert/hashmap,loversInJapan/hashmap,amyvmiwei/hashmap,amyvmiwei/hashmap,amyvmiwei/hashmap,goossaert/hashmap,SproutOrc/hashmap,goossaert/hashmap,loversInJapan/hashmap