Problems — CP Platform

#	Problem	Tags	Rating
13-A	Numbers	implementation math	1000
12-E	Start of the session	constructive algorithms	2100
12-D	Ball	data structures sortings	2400
12-C	Fruits	greedy implementation sortings	1100
12-B	Correct Solution?	implementation sortings	1100
12-A	Super Agent	implementation	800
11-E	Forward, march!	binary search dp greedy	2800
11-D	A Simple Task	bitmasks dp graphs	2200
11-C	How Many Squares?	implementation	2200
11-B	Jumping Jack	math	1600
11-A	Increasing Sequence	constructive algorithms implementation math	900
10-E	Greedy Change	constructive algorithms	2600
10-D	LCIS	dp	2800
10-C	Digital Root	number theory	2000
10-B	Cinema Cashier	dp implementation	1500
10-A	Power Consumption Calculation	implementation	900
9-E	Interestring graph and Apples	dfs and similar dsu graphs	2300
9-D	How many trees?	combinatorics divide and conquer dp	1900
9-C	Hexadecimal's Numbers	brute force implementation math	1200
9-B	Running Student	brute force geometry implementation	1200
9-A	Die Roll	math probabilities	800
8-E	Beads	dp graphs	2600
8-D	Two Friends	binary search geometry	2600
8-C	Looking for Order	bitmasks dp	2000
8-B	Obsession with Robots	constructive algorithms graphs implementation	1400
8-A	Train and Peter	strings	1200
7-E	Defining Macros	dp expression parsing implementation	2600
7-D	Palindrome Degree	hashing strings	2200
7-C	Line	math number theory	1800
7-B	Memory Manager	implementation	1600
7-A	Kalevitch and Chess	brute force constructive algorithms	1100
6-E	Exposition	binary search data structures dsu +2	1900
6-D	Lizards and Basements 2	brute force dp	2600
6-C	Alice, Bob and Chocolate	greedy two pointers	1200
6-B	President's Office	implementation	1100
6-A	Triangle	brute force geometry	900
5-E	Bindian Signalizing	data structures	2400
5-D	Follow Traffic Rules	implementation math	2100
5-C	Longest Regular Bracket Sequence	constructive algorithms data structures dp +3	1900
5-B	Center Alignment	implementation strings	1200
5-A	Chat Servers Outgoing Traffic	implementation	1000
4-D	Mysterious Present	dp sortings	1700
4-C	Registration System	data structures hashing implementation	1300
4-B	Before an Exam	constructive algorithms greedy	1200
4-A	Watermelon	brute force math	800
3-D	Least Cost Bracket Sequence	greedy	2600
3-C	Tic-tac-toe	brute force games implementation	1800
3-B	Lorry	greedy sortings	1900
3-A	Shortest path of the king	greedy shortest paths	1000
2-C	Commentator problem	geometry	2600