User Yubo_Zhao

Points breakdown

15 / 15

AC | JAVA

CCC '25 S5 - To-Do List

on Nov. 20, 2025, 5:53 p.m.

17pp

weighted 100% (17pp)

15 / 15

AC | JAVA

CCC '20 S4 - Swapping Seats

on Feb. 18, 2025, 6:29 p.m.

12pp

weighted 95% (11pp)

15 / 15

AC | JAVA

CCC '24 S4 - Painting Roads

on April 4, 2024, 7:29 p.m.

12pp

weighted 90% (11pp)

20 / 20

AC | JAVA

CCC '20 S3 - Searching for Strings

on Feb. 18, 2024, 4:04 p.m.

12pp

weighted 86% (10pp)

15 / 15

AC | JAVA

CCC '25 S3 - Pretty Pens

on Nov. 20, 2025, 4:36 p.m.

10pp

weighted 81% (8.1pp)

16 / 16

AC | JAVA

CCC '23 S3 - Palindromic Poster

on April 6, 2024, 2:18 a.m.

10pp

weighted 77% (7.7pp)

30 / 30

AC | JAVA

CCC '15 S3 - Gates

on Feb. 25, 2024, 11:04 p.m.

10pp

weighted 74% (7.4pp)

13 / 15

TLE | JAVA

CCC '20 S2 - Escape Room

on May 26, 2024, 3:02 p.m.

9pp

weighted 70% (6.1pp)

8 / 15

TLE | JAVA

CCC '16 S4 - Combining Riceballs

on May 12, 2024, 2:50 p.m.

8pp

weighted 66% (5.3pp)

15 / 15

AC | JAVA

CCC '24 J5 - Harvest Waterloo

on March 3, 2024, 3:08 p.m.

7pp

weighted 63% (4.4pp)

Problem	Score
CCC '10 J5 - Knight Hop	3.500 / 7
CCC '10 S1 - Computer Purchase	5 / 5
CCC '11 J5 - Unfriend	7 / 7
CCC '11 S1 - English or French?	5 / 5
CCC '12 S1 - Don't pass me the ball!	3 / 3
CCC '13 S1 - From 1987 to 2013	5 / 5
CCC '13 S2 - Bridge Transport	5 / 5
CCC '14 S1 - Party Invitation	5 / 5
CCC '14 S2 - Assigning Partners	5 / 5
CCC '15 J2 - Happy or Sad	3 / 3
CCC '15 J4 - Wait Time	5 / 5
CCC '15 J5 - π-day	5.333 / 10
CCC '15 S1 - Zero That Out	3 / 3
CCC '15 S2 - Jerseys	5 / 5
CCC '15 S3 - Gates	10 / 10
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 J4 - Arrival Time	5 / 5
CCC '16 S1 - Ragaman	3 / 3
CCC '16 S4 - Combining Riceballs	8 / 15
CCC '17 J2 - Shifty Sum	3 / 3
CCC '17 J3 - Exactly Electrical	3 / 3
CCC '17 J4 - Favourite Times	5 / 5
CCC '17 S1 - Sum Game	3 / 3
CCC '18 J2 - Occupy parking	3 / 3
CCC '18 J3 - Are we there yet?	3 / 3
CCC '18 S2 - Sunflowers	5 / 5
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 S1 - Flipper	3 / 3
CCC '20 J3 - Art	3 / 3
CCC '20 J4 - Cyclic Shifts	5 / 5
CCC '20 S1 - Surmising a Sprinter's Speed	5 / 5
CCC '20 S2 - Escape Room	8.667 / 10
CCC '20 S3 - Searching for Strings	12 / 12
CCC '20 S4 - Swapping Seats	12 / 12
CCC '21 J1 - Boiling Water	3 / 3
CCC '21 J2 - Silent Auction	3 / 3
CCC '21 J3 - Secret Instructions	5 / 5
CCC '21 J4 - Arranging Books	7 / 7
CCC '21 S1 - Crazy Fencing	5 / 5
CCC '21 S2 - Modern Art	7 / 7
CCC '22 J3 - Harp Tuning	5 / 5
CCC '22 S1 - Good Fours and Good Fives	5 / 5
CCC '22 S2 - Good Groups	5 / 5
CCC '23 J1 - Deliv-e-droid	3 / 3
CCC '23 J2 - Chili Peppers	3 / 3
CCC '23 J3 - Special Event	5 / 5
CCC '23 J5 - CCC Word Hunt	4 / 10
CCC '23 S1 - Trianglane	5 / 5
CCC '23 S2 - Symmetric Mountains	7 / 7
CCC '23 S3 - Palindromic Poster	10 / 10
CCC '24 J4 - Troublesome Keys	5 / 5
CCC '24 J5 - Harvest Waterloo	7 / 7
CCC '24 S1 - Hat Circle	3 / 3
CCC '24 S2 - Heavy-Light Composition	5 / 5
CCC '24 S3 - Swipe	2.667 / 10
CCC '24 S4 - Painting Roads	12 / 12
CCC '25 S3 - Pretty Pens	10 / 10
CCC '25 S5 - To-Do List	17 / 17

User Yubo_Zhao

Points breakdown

CCC (318.167 points)

IOI (0.375 points)