String
Problems
| Length | 1407 / 1418 | 800 | |
| Word Count | 1269 / 1316 | 800 | |
| lowercase | 1254 / 1270 | 800 | |
| Vowel | 1176 / 1196 | 800 | |
| Digit sum | 1175 / 1201 | 800 | |
| Strong password | 1132 / 1153 | 800 | |
| Letter frequencies | 1041 / 1050 | 800 | |
| Palindrome string | 1088 / 1093 | 800 | |
| Palindrome substring | 865 / 894 | 800 | |
| Caesar cipher | 832 / 905 | 800 | |
| String occurences | 875 / 893 | 800 | |
| Sum | 767 / 848 | 800 | |
| String normalization | 770 / 844 | 800 | |
| Run-length encoding | 688 / 782 | 800 | |
| Expression | 512 / 546 | 800 |