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qrq4
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Peter Refaat
qrq4
Egypt
Egypt
Joined Jan 20, 2026
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2026
Feb
qrq4 solved problem Connectivity (#982) on first attempt3 days ago
qrq4 solved problem From adjacency matrix to adjacency list (#3981) on first attempt3 days ago
qrq4 has completed the contest Blitz Round #14 and scored no score8 days ago
qrq4 has joined contest Blitz Round #1413 days ago
qrq4 solved problem Counting Pairs (#12313) on 3 attempt2 months ago
qrq4 solved problem Digit Queries (#12312) on first attempt2 months ago
qrq4 solved problem Bouncing Ball (#12311) on first attempt2 months ago
qrq4 has joined contest Blitz Round #102 months ago