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evsaid
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Problems
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Etibar Seyidzade
Last visit 17 hours ago
Azerbaijan, Sumgayit
Baku Engineering University (Qafqaz University)
Joined September, 2010
Rank
25
Solved problems
2055
Submissions
11755
Accepted submits
6274
Recently submitted problems
319
Binomial coefficients 2
255 / 325
931
The ratio of product to the sum
8271 / 9573
1286
Tuck-shop
11861 / 12332
1287
Tennis competitions
2960 / 3363
1288
n-digit numbers
1250 / 1900
1289
Lunch
5177 / 5740
1325
Vas`kin track
857 / 986
1327
Rooks on a chessboard
1600 / 2063
1328
Drawings on a piece of paper in the box
381 / 617
1548
Diagonal
716 / 830
2385
The number of permutations
2256 / 2361
2392
Interesting Sum
1848 / 2743
3835
Minimal Spanning Tree
1210 / 1391
4368
Triangular web
510 / 596
4538
Bob and balls
907 / 1076
4915
Tree
294 / 359
5716
Card houses
986 / 1186
7817
Good number
2028 / 2242
9592
Concatenation of two palindromes
549 / 640
11258
Number of rectangles
95 / 159