Randomly generate 100 integers between 0 and 500 and organize the array to. For re-insert, it's difficult since you cannot presume you know anything about the priorities. Implement the pseudo algorithm of Priority Queue using an array in Java/C/C++/Python. It will break the 'tie' between two items with identical priorities without the data needing to be orderable. In C++, this could be done using a std::multi_map, the important thing is that the object must remember where it is stored in the structure to be able to delete itself efficiently. A common solution to unorderable data in a priority queue is to add an extra value to the tuple which will never be equal in two different entries. Step 1: In the list, lower priority number is 1, whose data value is 333, so it will be inserted in the list as shown in the below diagram: Step 2: After inserting 333, priority number 2 is having a higher. I would suggest first trying the head-in approach, to update a priority: In the case of priority queue, lower priority number is considered the higher priority, i.e., lower priority number higher priority.
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