UOI
    Головна
    Задачі
    Змагання
    Архіви
happy_69
Sign in
happy
happy_69
Ukraine
Ukraine
Joined Oct 28, 2025
Overview
Problems8
Submissions11
Dec
2020
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2021
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2022
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2023
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2024
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2025
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
happy_69 solved problem Конструктор (#472) on first attempt21 hours ago
happy_69 solved problem Матричка (#470) on first attempt21 hours ago
happy_69 has joined contest UOI 2026. I stage21 hours ago
happy_69 solved problem Transportation Dilemma (#4) on first attempt2 days ago
happy_69 solved problem Petryk and the exam (#3) on 2 attempt2 days ago
happy_69 solved problem Mean arithmetic (#2) on first attempt2 days ago
happy_69 solved problem Debts (#1) on first attempt2 days ago
happy_69 has joined contest Тренувальний тур I етапу Всеукраїнської олімпіади з інформатики7 days ago
happy_69 solved problem Координати (#466) on first attempt7 days ago
happy_69 solved problem Grandchildren (#464) on first attempt7 days ago