Editorial for Mock CCC '15 S2 - Problem-setting Pandemonium
Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.
Submitting an official solution before solving the problem yourself is a bannable offence.
The minimum number of problems needed is equal to the number of times the mode appears. Proof is left to the reader as an exercise.
Time Complexity:
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