[0.0] diary

• 2020.09.25 CF round 672 div2
  A is actually in reverse order, because the calculation of n*(n-1) does not open longlong wa-1, you should not be
  confused by hitting four dichotomy
  C1, knowing that you are looking for each descending subsequence At the beginning and end of the element, if (a[r+1]<=a[l])r++; wa-3 is still changed afterwards, it will not help [
  sigh.jpg ] to lose a lot of points TvT| ⁵⁵⁵ breath

• 2020.10.15 SDNU ACM-ICPC 2020 Extra Training Contest 30
  The dfs+st table written by TvT C has been wa, sample 4 did not understand how it came out for a long time. The
  dish is dead

• 2020.11.01 CCPC Mianyang Station
  first silver. The game theory that I had spent four hours on was finally corrected in the last hour. In the last half an hour, my teammates came up with a silver medal question. The two questions let us from the four-hour bronze medal zone (I didn’t know it at the time, I thought it was still Wandering in the iron medal area), directly into the middle of the silver medal area, [extremely happy.jpg]
  four-hour list:
  

  Final list: