Basecamp
    Home
    Problems
    Contests
    Courses
    Rating
    Posts
    Store
    Discord
QRQ4
Sign in
Peter Refaat
QRQ4
Specialist
Egypt
Egypt
Joined Jan 20, 2026
OverviewRatingPosts
Rating
1515
Problems14
Submissions18
7月
8月
9月
10月
11月
12月
2021
2月
3月
4月
5月
6月
7月
8月
9月
10月
11月
12月
2022
2月
3月
4月
5月
6月
7月
8月
9月
10月
11月
12月
2023
2月
3月
4月
5月
6月
7月
8月
9月
10月
11月
12月
2024
2月
3月
4月
5月
6月
7月
8月
9月
10月
11月
12月
2025
2月
3月
4月
5月
6月
7月
8月
9月
10月
11月
12月
2026
2月
3月
4月
5月
QRQ4 has completed the contest Blitz Round #21 and scored no score7 日前
QRQ4 solved problem The Efficient Steps (#12465) on 2 attempt7 日前
QRQ4 has joined contest Blitz Round #2111 日前
QRQ4 has completed the contest Blitz Round #20 and scored 800 points20 日前
QRQ4 solved problem Bitwise Party (#12463) on first attempt21 日前
QRQ4 solved problem Not Very Powerful (#12464) on first attempt21 日前
QRQ4 solved problem Fe3b0onacci Pairs (#12462) on first attempt21 日前
QRQ4 solved problem Dream Permutation (#12461) on first attempt21 日前
QRQ4 solved problem Exciting Arrays (#12460) on first attempt21 日前
QRQ4 has joined contest Blitz Round #2025 日前
QRQ4 has completed the contest Weekend Practice #23 and scored no score1 か月前
QRQ4 has joined contest Weekend Practice #231 か月前
QRQ4 has joined contest Weekend Practice #222 か月前
QRQ4 solved problem Rufo's massive (#12430) on first attempt2 か月前
QRQ4 solved problem Area (#12429) on 3 attempt2 か月前
QRQ4 has joined contest Blitz Round #182 か月前
QRQ4 solved problem Monkey and Apple-trees (#7488) on 10 attempt3 か月前
QRQ4 solved problem Connectivity (#982) on first attempt3 か月前
QRQ4 solved problem From adjacency matrix to adjacency list (#3981) on first attempt3 か月前
QRQ4 has completed the contest Blitz Round #14 and scored no score3 か月前
QRQ4 has joined contest Blitz Round #143 か月前
QRQ4 solved problem Counting Pairs (#12313) on 3 attempt5 か月前
QRQ4 solved problem Digit Queries (#12312) on first attempt5 か月前
QRQ4 solved problem Bouncing Ball (#12311) on first attempt5 か月前
QRQ4 has joined contest Blitz Round #105 か月前