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# Problem Tags Rating Solved
540-B School Marks
greedy implementation
1700
540-A Combination Lock
implementation
800
538-H Summer Dichotomy
2-sat data structures dfs and similar +1
3200
538-G Berserk Robot
constructive algorithms math sortings
3100
538-F A Heap of Heaps
brute force data structures math +1
2200
538-E Demiurges Play Again
dfs and similar dp math +1
2200
538-D Weird Chess
brute force constructive algorithms implementation
1800
538-C Tourist's Notes
binary search brute force greedy +2
1600
538-B Quasi Binary
constructive algorithms dp greedy +1
1400
538-A Cutting Banner
brute force implementation
1400
536-E Tavas on the Path
data structures divide and conquer trees
3100
536-D Tavas in Kansas
dp games
2900
535-E Tavas and Pashmaks
geometry math
2600
535-D Tavas and Malekas
greedy hashing string suffix structures +1
1900
535-C Tavas and Karafs
binary search greedy math
1900
535-B Tavas and SaDDas
bitmasks brute force combinatorics +1
1100
535-A Tavas and Nafas
brute force implementation
1000
534-F Simplified Nonogram
bitmasks dp hashing +1
2400
534-E Berland Local Positioning System
constructive algorithms greedy hashing +1
2400
534-D Handshakes
binary search constructive algorithms data structures +1
1900
534-C Polycarpus' Dice
math
1600
534-B Covered Path
dp greedy math
1400
534-A Exam
constructive algorithms implementation math
1100
533-F Encoding
hashing string suffix structures strings
2400
533-E Correcting Mistakes
constructive algorithms dp greedy +3
1800
533-D Landmarks
data structures dp
3000
533-C Board Game
games greedy implementation +1
1700
533-B Work Group
dfs and similar dp graphs +2
2000
533-A Berland Miners
binary search data structures dfs and similar +2
3000
530-I Different variables
*special
2500
530-H Points in triangle
*special geometry
2100
530-G Levenshtein distance
*special
2100
530-F Jumping frogs
*special
2100
530-E Sum and product
*special
1700
530-D Set subtraction
*special
1600
530-C Diophantine equation
*special
1500
530-B String inside out
*special
1600
530-A Quadratic equation
*special
1500
529-B Group Photo 2 (online mirror version)
brute force greedy sortings
1900
528-E Triangles 3000
geometry sortings
3100
528-D Fuzzy Search
bitmasks brute force fft
2500
527-E Data Center Drama
dfs and similar graphs
2600
527-D Clique Problem
data structures dp greedy +2
1800
527-C Glass Carving
binary search data structures implementation
1500
527-B Error Correct System
greedy
1500
527-A Playing with Paper
implementation math
1100
526-G Spiders Evil Plan
greedy trees
3300
526-F Pudding Monsters
data structures divide and conquer
3000
526-E Transmitting Levels
dp implementation
2400
526-D Om Nom and Necklace
hashing string suffix structures strings
2200