Diferente pentru problema/competition intre reviziile #4 si #5
Nu exista diferente intre titluri.
Diferente intre continut:
h3. Tutorial
You can see a $O(N+ M)$ solution description in problem's 'editorial':competition/solutie
You can see a $O(N)$ solution description in problem's 'editorial':competition/solutie
h3. Request
