amberriver - Basecamp

Ruoshui Song

amberriver

Specialist

United Kingdom

Joined Apr 9, 2026

Achievements (54)

Overview Rating Achievements

Rating

1515

Problems15

Submissions22

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2021

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amberriver earned achievement Specialist1 month ago

amberriver earned achievement Student1 month ago

amberriver earned achievement Explorer1 month ago

amberriver has completed the contest Blitz Round #18 and scored 450 points5 months ago

amberriver solved problem Nasser's Prime Slices (#12432) on 4 attempt5 months ago

amberriver solved problem Rufo's massive (#12430) on first attempt5 months ago

amberriver solved problem Area (#12429) on first attempt5 months ago

amberriver has joined contest Blitz Round #185 months ago

amberriver solved problem Competitors’ quantity of the Olympiad (#43) on first attempt5 months ago

amberriver solved problem Degree of symmetry (#19) on first attempt5 months ago

amberriver solved problem The Ticket Chase (#14) on first attempt5 months ago

amberriver has completed the contest Weekend Practice #22 and scored 520 points5 months ago

amberriver solved problem Exam for the Night's Watch (#12424) on 2 attempt5 months ago

amberriver solved problem Coding Errors (#12423) on first attempt5 months ago

amberriver solved problem Bread Sorting (#6828) on first attempt5 months ago

amberriver has joined contest Weekend Practice #21 5 months ago

amberriver has joined contest Weekend Practice #225 months ago

amberriver solved problem Sequence (#1083) on first attempt5 months ago

amberriver solved problem Sum of squares Cnk (#11271) on first attempt5 months ago

amberriver solved problem Perfect square (#8877) on first attempt5 months ago

amberriver solved problem Sum and amount (#8684) on first attempt5 months ago

amberriver has joined contest Educational Round #105 months ago

amberriver has joined contest Weekend Practice #205 months ago

amberriver has joined contest Training team contest for schoolchildren5 months ago

amberriver solved problem Digits (#2) on first attempt5 months ago