📊 Update scoreboards for: challenge-21

  - Updated test results for modified submissions
  - Refreshed completion statistics

Author: actions-user

challenge-21/SCOREBOARD.md

@@ -1,6 +1,7 @@
 # Scoreboard for challenge-21
 | Username   | Passed Tests | Total Tests |
 |------------|--------------|-------------|
+| 4m4x | 35 | 35 |
 | Ali-Fartoot | 35 | 35 |
 | Be1chenok | 35 | 35 |
 | BrianHuang813 | 35 | 35 |
@@ -22,6 +23,7 @@
 | akolpakov-somehash | 35 | 35 |
 | awsl1110 | 35 | 35 |
 | binoymanoj | 35 | 35 |
+| duplabe | 35 | 35 |
 | grozdovk | 35 | 35 |
 | himanshum9 | 35 | 35 |
 | hodgechung | 35 | 35 |
@@ -47,5 +49,6 @@
 | tmsankaram | 35 | 35 |
 | wxai2324 | 35 | 35 |
 | y1hao | 35 | 35 |
+| yz4230 | 35 | 35 |
 | ashwinipatankar | 33 | 35 |
 | VFarsiyants | 24 | 26 |