Contest | Problem |
---|---|
MAY18 | CHSIGN |
LTIME61 | XORSORT2 |
TBGRAPH | |
TREESORT | |
DOCSDEL | |
SUMPOWER | |
NUM239 | |
OTHERS | DIV3 |
DIVPUZ | |
STRSPL | |
MAKEPOLY | |
RLEVEL | |
DOMINOG | |
OCTOPUS | |
OCT20 | RANDKNAP |
DEC20 | LCASQRT |
Ivan Safonov
- 7★isaf27
- Russia
- Student
- Higher School of Economics
- No Active Plan. View Details
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Ratings System Update
(2021-12-13 16:30:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
None
Practice Paths (0)
None
Contests (30)
March Challenge 2017
Cooking Schedule, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, Bandwidth of a matrix
April Challenge 2017
Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
October Challenge 2017
Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
December Challenge 2017
Total Diamonds, Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out, Chef and Hamming Distance of arrays
June Cook-Off 2017
Ada and crayons, SnackUp
June Cook-Off 2018 Division 1
Masha and Minions, Sonya and Segments, Danya and Numbers, Batman and Tree, Good Permutations
October Mega Cook-Off 2018 Division 1
Binary Nim 2, Power Tree, Pumping Water, Ada Bishop
May Lunchtime 2018 Division 1
Count Substrings, Shifted Palindrome, Weak in the Middle, Maximum Plus
April Challenge 2018 Division 1
Chef and Array (Challenge), Vaibhav and Ministers, Chef at the Food Fair, Cutting Plants, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes
June Challenge 2018 Division 1
Two Flowers, Vision, Ways to Work, Archi and Tree, Binary Board
July Challenge 2018 Division 1
Pizza Delivery, Reach Equilibrium, No Minimum No Maximum, Gears
September Challenge 2018 Division 1
AND Square Subsegments, Selinas the Chefs Falling on the Tree, Sasha and Photos, Chef and Lost Story, Chef and Condition Zero (Challenge), Factorize, Table Game, Bad Shuffle
November Challenge 2018 Division 1
Chef and Recipes, Chef and Equations, Appy Loves One, Good Median, Chef, Primes and Trees (Challenge), Magician versus Chef 2
December Lunchtime 2018 Division 1
Choosing from Buckets, Drawing Lines, Maximize the NOSS, Find Best Path, Age Calculator
February Cook-Off 2019 Division 1
Max Range Queries, Chef and Secret Password, The Most Amazing Dish, Chef in Evil Land, Chef and Party
March Cook-Off 2019 Division 1
XOR N-bonacci Sequence, Points and Convex Hulls, Markers and Caps, Music Shopping
April Challenge 2019 Division 1
Offer for Chef, Kira Loves Palindromes, Mininum XOR over Tree, Playing with Numbers, Subtree Removal, Moving Rectangles (Challenge)
April Lunchtime 2019 Division 1
Dream Problem, The Last Droid, Firdavs and Planet F, Minimum Sum, Chef Rami and Inventions
May Cook-Off 2019 Division 1
Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Searching for a Biclique
May Lunchtime 2019 Division 1 (Unrated)
Grid Tour, Reverse Maximisation, XOR Magic, Intervals and Intersections, Abdullah and Toll Discounts
June Cook-Off 2019 Division 1
Zawad and Index Sum, Nice Subsets, The Secret Recipe, Ants and Anteaters, Drink Slush
June Lunchtime 2019 Division 1
Fuzzy Conversions, The Grux Permutation , Gii and His Club, Igzi and Burly Array
July Challenge 2019 Division 1
Hit the Coconuts, Guess the Prime!, Codechef War, Circular Merging
October Mega Cook-Off 2019 Division 1
D-Value, Hidden Sequence, D-Or
November Challenge 2019 Division 1
Physical Exercise, Smallest Beautiful Number, From Zero to Infinity, Single Point of Failure
January Cook-Off 2020 Division 1
Almost Palindromic, Profitable Paths, Count It, Range AND, Chefina and Sums
July Challenge 2020 Division 1
LCM Constraints, Chefina and Swaps, Easy Geo xD, Chef and Dragon Dens, Missing a Point, Weird Product
July Lunchtime 2020 Division 1
Profitable Paths 2, Golomb Sequence, Coloured Pairings, Binary Concatenation , Pairs of Pairs
June Cook-Off 2020 Division 1
Per Capita Income, Carry Bed, Checkpoints, Banned Quotient, Drawing
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
SnackDown 2021 - Online Round 1B
Insider Subsequences, Queens Placement , Largest Laddu, Help Nishant
SnackDown 2021 - Online Pre-Elimination
Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers
SnackDown 2021 - Online Elimination Round (Rated for all)
One Change Subsequences, Random Convex Hull, Graduate Work Matters, Sorting Segments, Sorter Prodigy
SnackDown 2021 - Final Round
Ones Guessing, Equal Number of Prefix Maximums, Finally, Non Ad-Hoc Problem, AND of Maximums
Total Problems Solved: 185
Contributions
Problems Authored (16)
Problems Tested (0)
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Editorials Contributed (0)
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