Hi everyone. My solution to problem 712D gets TLE, even though its complexity is . Where d is the difference between the score of Memory and Lexa. Note that - 2·105 ≤ d ≤ 2·105.
The funny thing is that in my laptop (Intel Core i5, 4gb ram) my solution runs in 1.2s. What do you think about this, is CF that slow? Anyway could you help me?