Problems
Sum 1#9970
Very easy · Math
Sum 2#9971
Very easy · Math · Implementation
Sum 3#9972
Easy · Math
Sum 4#9973
Very easy · Math
Sum 5#9974
Very easy · Math
Sum 6#9975
Very easy · Dynamic programming · Math
Sum 7#9976
Very easy · Math
Sum 8#9977
Very easy · Math
Sum 9#9978
Very easy · Math
Steps Down#9979
Very easy · Implementation
Steps Up#9980
Very easy · Implementation
Still such steps#9981
Very easy · Implementation
Matrix 1#9982
Very easy · Implementation
Matrix 2#9983
Very easy · Implementation
Matrix 3#9984
Very easy · Implementation
Two-digit numbers#9985
Very easy · Brute force
Two-digit numbers 2#9986
Very easy · Brute force
Two-digit numbers 3#9987
Very easy · Brute force
Two-digit numbers 4#9988
Very easy · Brute force
Two-digit numbers 5#9989
Very easy · Brute force
Two-digit numbers 6#9990
Very easy · Brute force
Three-digit numbers#9991
Very easy · Brute force
Three-digit numbers 2#9992
Very easy · Brute force
Three-digit numbers 3#9993
Very easy · Brute force
Three-digit numbers 4#9994
Very easy · Brute force