Codeforces Round 729 - All Solutions (A-E2) + Screencast (51st)

Colin Galen • November 24, 2021

Colin Galen

About

General videos about learning and maximizing your brain's power (for now) Some stats (competitive programming stuff): Codeforces (max. rating): 2657 - international grandmaster Codechef (max. rating): 2555 - 7 stars ICPC progress: world finalist '23, ranked 3rd and silver medal in NAC (all of US + Canada) IOI progress: USACO camp/finalist '21 Best leetcode contest rank: 4th (weekly 323) Best kickstart rank: 10th (twice)

Codeforces Round 729 - All Solutions (A-E2) + Screencast (51st)

Colin Galen

About

Latest Posts

A Deep Understanding of Dynamic Programming [Intro / Overview]

You May Also Like

Coding Challenge Must-Haves

10.1 Inch Touch Portable Monitor IPS Screen 1366x768P 60Hz 400 Brightness 99% sRGB HDMI USB-C Monitors Switch for Xbox PS3/4/5 Laptop Compatible with Raspberry Pi, Mini Touch Screen

Logitech M185 Wireless Mouse, 2.4GHz with USB Mini Receiver, 12-Month Battery Life, 1000 DPI Optical Tracking, Ambidextrous, Compatible with PC, Mac, Laptop - Black

Logitech K250 Bluetooth Keyboard with Numpad, Easy Connectivity, Compact Wireless Keyboard Made with Recycled Plastic, Spill-Resistant, Comfortable Keys - Windows/MacOS - Graphite

Logitech G203 Wired Gaming Mouse, 8,000 DPI, Rainbow Optical Effect LIGHTSYNC RGB, 6 Programmable Buttons, On-Board Memory, Screen Mapping, PC/Mac Computer and Laptop Compatible - Black

Logitech G305 LIGHTSPEED Wireless Gaming Mouse, Hero 12K Sensor, 12,000 DPI, Lightweight, 6 Programmable Buttons, 250h Battery Life, On-Board Memory, PC/Mac - Black

SAMSUNG 870 EVO SATA SSD 500GB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E500B/AM [Canada Version]

SAMSUNG 870 EVO SATA III SSD 4TB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E4T0B/AM [Canada Version]

Samsung 990 EVO Plus - 4TB PCIe Gen4. X4, Gen5. X2 NVMe 2.0 - M.2 Internal SSD, Speed Up to 7,250 MBs, Upgrade Storage for PC-Laptops, HMB Technology and Intelligent Turbowrite (MZ-V9S4T0B/AM)

SAMSUNG EVO Select Micro SD-Memory-Card + Adapter, 128GB microSDXC 160MB/s Full HD &amp; 4K UHD, UHS-I, U3, A2, V30, for Android Smartphones, Tablets, Nintendo-Switch (MB-ME128SA/AM) [Canada Version]

KOORUI 27 Inch 4K Monitor, UHD(3840 x 2160) IPS Computer Monitors, HDR10, 90% DCI-P3, Frameless, 2X HDMI 2.0 &amp; DisplayPort 1.4, VESA Mountable, Eye Care, N07

Dell 27 Plus 4K Monitor - S2725QS - 27-inch 4K (3840 x 2160) 120Hz 16:9 Display, IPS Panel, AMD FreeSync Premium, sRGB 99%, Integrated Speakers, 1500:1 Contrast Ratio, Comfortview Plus - Ash White

TP-Link USB WiFi Adapter for PC(TL-WN725N), N150 Wireless Network Adapter for Desktop - Nano Size WiFi Dongle for Windows 11/10/7/8/8.1/XP/ Mac OS 10.9-10.15 Linux Kernel 2.6.18-4.4.3, 2.4GHz Only

TP-Link USB WiFi Adapter for Desktop PC (Archer T3U Plus) - AC1300Mbps USB 3.0 WiFi Dual Band Network Adapter with 2.4GHz/5GHz High Gain Antenna, MU-MIMO, Windows 11/10/8.1/8/7/XP, Mac OS 10.9-10.15

TP-Link AC1300 USB WiFi Adapter (Archer T3U) - 2.4G/5G Dual Band Wireless Network Adapter for PC Desktop, MU-MIMO WiFi Dongle, USB 3.0, Supports Windows 11/10/8.1/8/7/XP, Mac OS 10.9-10.14

TP-Link AC1300 High Gain WiFi USB Adapter (Archer T4U)- Dual Band Wireless Network Adapter for Desktop with 2.4GHz/5GHz High Gain Antennas, MU-MIMO, Support Windows 10/8.1/8/7/XP, Mac OS

NEEWER Advanced 18 inch LED Ring Light for Phone, LCD Touch Screen, 2.4G Remote Lights Control, 3200-5600K, Tripod Light for iPhone Action Camera, for Studio Makeup TikTok YouTube Video Salon (Black)

Logitech G203 Wired Gaming Mouse, 8,000 DPI, Rainbow Optical Effect LIGHTSYNC RGB, 6 Programmable Buttons, On-Board Memory, Screen Mapping, PC/Mac Computer and Laptop Compatible - Black

Logitech G305 LIGHTSPEED Wireless Gaming Mouse, Hero 12K Sensor, 12,000 DPI, Lightweight, 6 Programmable Buttons, 250h Battery Life, On-Board Memory, PC/Mac - Black

Mind Reader Monitor Stand, Height Adjustable, Ventilated Laptop Riser, Office, Metal, 36.8L x 23.5W x 14H cm, Black

Laptop Stand for Desk, Adjustable Laptop Riser ABS+Silicone Foldable Portable Laptop Holder, Ventilated Cooling Notebook Stand for 10-15.6” Laptops,Tablet-Black

ZSCMALLS Portable Monitor, 15.6&quot; FHD 1080P IPS Laptop Screen Extender with Adjustable Stand, USB-C HDMI Portable Screen, Portable Monitor for Laptop Mac PC Phone Xbox PS4/5 Switch

Ingnok Portable Monitor, Ultra Slim 15.6 Inch FHD IPS Laptop Screen Extender with Adjustable Stand, USB C Compatible, Ideal for Travel and Office

Dell P2725H 27&quot; Full HD 1920 x 1080 Monitor - 1 Year Warranty, Computer Monitor Screen Bundle with Power Cable + USB 3.0 Upstream Cable + Display Port Cable + HDMI Cable + Microfiber Cloth Included

Dell P2425H Computer Monitor Screen 24&quot; 16:9 IPS Display 100Hz w/Stand - 1 Year Warranty, Full HD, 1920 x 1080 with Power Cord + DisplayPort Cable + HDMI Cable + USB 3.0 Cable + Microfiber Cloth

Acer PM161Q Bbmiuux 15.6&quot; Full HD (1920 x 1080) Widescreen Portable IPS Display | AMD FreeSync Technology | 4ms (G to G) | 2 Speakers | USB Type-C Cable and Mini HDMI Cable

Acer EDA270U Pbmiipx 27" WQHD (2560 x 1440) 1500R Curved Widescreen Gaming Display | AMD FreeSync Premium | 1ms (VRB) | up to 170Hz Refresh | HDR 10 | 2 Speakers | Display Port and HDMI Cable Incl.

Loading...

SAMSUNG EVO Select Micro SD-Memory-Card + Adapter, 128GB microSDXC 160MB/s Full HD & 4K UHD, UHS-I, U3, A2, V30, for Android Smartphones, Tablets, Nintendo-Switch (MB-ME128SA/AM) [Canada Version]

KOORUI 27 Inch 4K Monitor, UHD(3840 x 2160) IPS Computer Monitors, HDR10, 90% DCI-P3, Frameless, 2X HDMI 2.0 & DisplayPort 1.4, VESA Mountable, Eye Care, N07

ZSCMALLS Portable Monitor, 15.6" FHD 1080P IPS Laptop Screen Extender with Adjustable Stand, USB-C HDMI Portable Screen, Portable Monitor for Laptop Mac PC Phone Xbox PS4/5 Switch

Dell P2725H 27" Full HD 1920 x 1080 Monitor - 1 Year Warranty, Computer Monitor Screen Bundle with Power Cable + USB 3.0 Upstream Cable + Display Port Cable + HDMI Cable + Microfiber Cloth Included

Dell P2425H Computer Monitor Screen 24" 16:9 IPS Display 100Hz w/Stand - 1 Year Warranty, Full HD, 1920 x 1080 with Power Cord + DisplayPort Cable + HDMI Cable + USB 3.0 Cable + Microfiber Cloth

Acer PM161Q Bbmiuux 15.6" Full HD (1920 x 1080) Widescreen Portable IPS Display | AMD FreeSync Technology | 4ms (G to G) | 2 Speakers | USB Type-C Cable and Mini HDMI Cable