add data-structure of number container and priority manager

change example 3479

segment-tree/3479. fruits-into-baskets-III.cpp

@@ -8,6 +8,12 @@
 
     Return the number of fruit types that remain unplaced after all possible allocations are made.
 */
+#include <vector>
+#include <bit>
+#include <bitset>
+
+using namespace std;
+
 class SegmentTree {
 private:
 	vector<int> segVal;