z cr

@zzzcr

China, Ningbo

Joined Jan 2023

World Rank: #16432 (2 points)

Institution: Ningbo No.7 Middle School

Activity over the last year

AprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberJanuaryFebruaryMarchless than 10 submissionsbetween 10 and 20 submissionsbetween 20 and 30 submissionsbetween 30 and 40 submissionsmore than 40 submissions

Effectiveness

 Problems solved
33
 Solutions submitted
85

Problems