Practice Problems

Problem of the Day: Integer Square Root — keep your streak alive!

Practice Problems — combinatorics

#ProblemTopicsDifficulty
830 Strings Avoiding 000 combinatorics kmp matrix-exponentiation 2100
831 Strings Avoiding 111 combinatorics kmp matrix-exponentiation 2100
832 Strings Avoiding 222 combinatorics kmp matrix-exponentiation 2100
861 Strings Avoiding 1011 combinatorics kmp matrix-exponentiation 2100
862 Strings Avoiding 0100 combinatorics kmp matrix-exponentiation 2100
863 Strings Avoiding 102 combinatorics kmp matrix-exponentiation 2100
864 Strings Avoiding 210 combinatorics kmp matrix-exponentiation 2100
865 Strings Avoiding 112 combinatorics kmp matrix-exponentiation 2100
866 Strings Avoiding 00110 combinatorics kmp matrix-exponentiation 2100
867 Strings Avoiding 10101 combinatorics kmp matrix-exponentiation 2100
938 Binary Strings Avoiding 101 combinatorics kmp matrix-exponentiation 2100
939 Binary Strings Avoiding 011 combinatorics kmp matrix-exponentiation 2100
940 Binary Strings Avoiding 001 combinatorics kmp matrix-exponentiation 2100
941 Binary Strings Avoiding 100 combinatorics kmp matrix-exponentiation 2100
942 Binary Strings Avoiding 110 combinatorics kmp matrix-exponentiation 2100
943 Binary Strings Avoiding 1001 combinatorics kmp matrix-exponentiation 2100
944 Binary Strings Avoiding 0111 combinatorics kmp matrix-exponentiation 2100
945 Binary Strings Avoiding 1000 combinatorics kmp matrix-exponentiation 2100
946 Binary Strings Avoiding 0011 combinatorics kmp matrix-exponentiation 2100
947 Binary Strings Avoiding 1101 combinatorics kmp matrix-exponentiation 2100
948 Binary Strings Avoiding 00100 combinatorics kmp matrix-exponentiation 2100
949 Binary Strings Avoiding 11011 combinatorics kmp matrix-exponentiation 2100
950 Binary Strings Avoiding 01001 combinatorics kmp matrix-exponentiation 2100
951 Binary Strings Avoiding 10110 combinatorics kmp matrix-exponentiation 2100
952 Binary Strings Avoiding 000111 combinatorics kmp matrix-exponentiation 2100
991 Binary Strings Avoiding 01011 combinatorics kmp matrix-exponentiation 2100
992 Binary Strings Avoiding 10100 combinatorics kmp matrix-exponentiation 2100
993 Binary Strings Avoiding 11000 combinatorics kmp matrix-exponentiation 2100
994 Binary Strings Avoiding 00011 combinatorics kmp matrix-exponentiation 2100
995 Binary Strings Avoiding 01101 combinatorics kmp matrix-exponentiation 2100
996 Binary Strings Avoiding 10011 combinatorics kmp matrix-exponentiation 2100
997 Binary Strings Avoiding 11100 combinatorics kmp matrix-exponentiation 2100
998 Binary Strings Avoiding 00111 combinatorics kmp matrix-exponentiation 2100
586 Counting Necklaces combinatorics number-theory 2200
908 Avoid the Set {00, 11} combinatorics aho-corasick matrix-exponentiation 2400
909 Avoid the Set {010, 101} combinatorics aho-corasick matrix-exponentiation 2400
910 Avoid the Set {000, 111} combinatorics aho-corasick matrix-exponentiation 2400
912 Avoid the Set {11, 010} combinatorics aho-corasick matrix-exponentiation 2400
913 Avoid the Set {00, 11, 22} combinatorics aho-corasick matrix-exponentiation 2400
914 Avoid the Set {012, 210} combinatorics aho-corasick matrix-exponentiation 2400
915 Avoid the Set {00, 12} combinatorics aho-corasick matrix-exponentiation 2400
916 Avoid the Set {aa, bab} combinatorics aho-corasick matrix-exponentiation 2400
917 Avoid the Set {ab, bc, ca} combinatorics aho-corasick matrix-exponentiation 2400