| 13 × | time-limit-exceeded | 4 × | java | 1 × | clone-graph | ||
| 13 × | test-case | 3 × | input | 1 × | word-ladder | ||
| 11 × | time-complexity | 3 × | memory | 1 × | postorder | ||
| 9 × | wrong-answer | 2 × | binary-search | 1 × | combination-sum | ||
| 6 × | run-time-error | 2 × | question-not-clear | 1 × | output-limit-exceeded | ||
| 6 × | testcase-wrong | 2 × | bst | 1 × | word-break | ||
| 6 × | clarification | 1 × | leetcode-library | 1 × | bitset | ||
| 4 × | leetcode-issue-only | 1 × | internal-error | 1 × | wrong-execution-result | ||
| 4 × | space-complexity | 1 × | runtime-error | 1 × | unique-binary-search-tree | ||
| 4 × | limit-exceeded | 1 × | jump-game | 1 × | linked-list-cycle |