| 63 × | time-limit-exceeded | 7 × | python | 3 × | runtime-error | ||
| 51 × | wrong-answer | 6 × | limit-exceeded | 3 × | output-limit-exceeded | ||
| 44 × | test-case | 6 × | memory | 3 × | word-break | ||
| 29 × | run-time-error | 4 × | vague | 3 × | linked-list-cycle | ||
| 26 × | time-complexity | 4 × | binary-tree | 3 × | binary-search | ||
| 17 × | testcase-wrong | 4 × | leetcode-issue-only | 3 × | requirements | ||
| 15 × | java | 4 × | wrong-execution-result | 2 × | explanations4problem | ||
| 12 × | space-complexity | 4 × | input | 2 × | leetcode-only | ||
| 11 × | clarification | 3 × | compile-error | 2 × | leetcode-library | ||
| 9 × | improve | 3 × | post-order-traversal | 2 × | internal-error |