Problems
Colorful Wizards#1944
Very easy · Graphs
Articulation Points#1945
Easy · Graphs
Mailman#1946
Medium · Graphs
Condensation of the graph#1947
Very easy · Graphs
Topological Sort#1948
Very easy · Graphs
Cake#1949
Very easy · Math · Implementation
School algebra#1950
Easy · Implementation
IP-address#1951
Very easy · Implementation
Contr-operation#1952
Easy · Implementation
The results of the Olympiad#1953
Easy · Sorting
Mosaic#1954
Very easy · Math
Calendar#1955
Very easy · Implementation
The young hacker#1956
Very easy · Implementation
Silver medal#1957
Very easy · Brute force
Is it divisible?#1958
Easy · Divide and Conquer · Implementation · Math
Deletion#1959
Easy · Brute force
Cockroaches#1960
Easy · Combinatorics
Forest dwellers#1961
Easy · Math · Implementation
The results of the Olympiad#1962
Very easy · Sorting
Theater#1963
Very easy · Implementation
What is left?#1964
Medium · Math · Number theory
Line#1965
Very easy · Implementation
A big plus#1966
Very easy · Implementation
Winnie the Pooh#1967
Easy · Math
Balls#1968
Easy · Implementation · Brute force