Research Rover

Cyclic Cipher

The New Year: Meeting Friends

模拟 · 数学

Text Document Analysis

Polycarp at the Radio

Lakes in Berland

One-Way Reform

st-Spanning Tree

Checking the Calendar

Batch Sort

Ray Tracing

Dense Subsequence

Goods transportation

Uniformly Branched Trees

动态规划 DP · 组合数学 · 树的重心

Xor-matic Number of the Graph

进制 · 概率论 · 线性基

Jumping Ball

Food on the Plane

Hidden Word

Contest Balloons

模拟 · 贪心 · 优先队列 · 队列

Too Much Money

Family Photos

贪心 · 排序

Messages on a Tree

Transformation: from A to B

Bill Total Value

Guess the Array

T-shirts Distribution

Games on a CD

Polycarp's problems

Interview with Oleg

Spotlights

Road to Cinema

Sea Battle

Subordinates

Financiers Game

Toda 2

Minimum and Maximum

Bulmart

Running Over The Bridges

Award Ceremony

Ber Patio

Car Repair Shop

Delete Them

Olympiad in Programming and Sports

动态规划 DP · 贪心 · 堆 · 费用流 · 反悔贪心

Bottles

贪心 · 枚举 · 背包 DP

Roads Orientation Problem

Expression Queries

Night at the Museum

Coupons and Discounts

Socks

80-th Level Archeology