10 fixed bug-fix tasks, scored pass/fail by real test execution.
| Task | Repair strategy A (comparison + equality + off-by-one) | Repair strategy B (equality + boolean + logic) |
|---|
| Sum integers from 1 to n (inclusive) | PASS | FAIL |
| Voting age eligibility (18 counts as eligible) | PASS | FAIL |
| Check whether a number is even | PASS | PASS |
| Check whether a list contains a target value | PASS | PASS |
| Strictly-below-limit check (equal to limit doesn't count) | PASS | FAIL |
| Index of the last element in a list | PASS | FAIL |
| Position after moving one step forward | PASS | FAIL |
| Only admins get permission | FAIL | PASS |
| Weekend if Saturday OR Sunday | FAIL | PASS |
| Reverse a string | FAIL | FAIL |
| TOTAL | 7/10 | 4/10 |