User Isaac13

Points breakdown

15 / 15

AC | C++11

CCC '18 S4 - Balanced Trees

on Feb. 19, 2024, 5:41 a.m.

15pp

weighted 100% (15pp)

15 / 15

AC | C

CCC '22 S4 - Good Triplets

on Aug. 23, 2022, 6:21 p.m.

15pp

weighted 95% (14pp)

100 / 100

AC | C++11

CCO '04 P6 - Orko

on June 12, 2021, 8:51 p.m.

15pp

weighted 90% (14pp)

28 / 28

AC | C++11

King Graff's Defense

on June 12, 2021, 3:17 p.m.

15pp

weighted 86% (13pp)

105 / 105

AC | C++14

CCC '06 S5 - Origin of Life

on May 30, 2021, 3:57 p.m.

15pp

weighted 81% (12pp)

25 / 25

AC | C++11

CCO '13 P3 - LHC

on Feb. 19, 2024, 10:26 p.m.

12pp

weighted 77% (9.3pp)

20 / 20

AC | C++11

WC '18 Contest 3 S2 - Gym Tour

on Sept. 2, 2022, 11:23 p.m.

12pp

weighted 74% (8.8pp)

50 / 50

AC | C++14

CCO '05 P4 - Primed Sequences

on July 26, 2022, 4:45 p.m.

12pp

weighted 70% (8.4pp)

100 / 100

AC | C++17

Dynamic Range Minimum Test

on May 10, 2022, 11:16 a.m.

12pp

weighted 66% (8.0pp)

100 / 100

AC | C

DMOPC '16 Contest 1 P5 - Blood Tubes

on March 18, 2022, 7:01 p.m.

12pp

weighted 63% (7.6pp)

Problem	Score
An Animal Contest 2 P1 - Koala Konundrum	5 / 5
An Animal Contest 2 P2 - Koala Party	5 / 5
An Animal Contest 2 P4 - Koala Gambling	12 / 12

Problem	Score
Another Contest 3 Problem 1 - Diverse Arrays	7 / 7
Another Contest 3 Problem 3 - Lexicographically Largest Common Subsequence	7 / 7
Another Contest 8 Problem 3 - Replay Double Ignition	10 / 10

Problem	Score
CCC '00 J1 - Calendar	5 / 5
CCC '00 S2 - Babbling Brooks	7 / 7
CCC '00 S4 - Golf	7 / 7
CCC '01 S2 - Spirals	5 / 5
CCC '02 J2 - AmeriCanadian	3 / 3
CCC '02 S2 - Fraction Action	5 / 5
CCC '02 S3 - Blindfold	10 / 15
CCC '03 J1 - Trident	3 / 3
CCC '03 S2 - Poetry	5 / 5
CCC '04 J1 - Squares	3 / 3
CCC '04 J4 - Simple Encryption	5 / 5
CCC '04 S1 - Fix	5 / 5
CCC '04 S2 - TopYodeller	5 / 5
CCC '05 J1 - The Cell Sell	2.200 / 3
CCC '05 J3 - Returning Home	5 / 5
CCC '05 J4 - Cross Spiral	7 / 7
CCC '05 J5 - Bananas	10 / 10
CCC '05 S1 - Snow Calls	5 / 5
CCC '05 S2 - Mouse Move	5 / 5
CCC '05 S5 - Pinball Ranking	12 / 12
CCC '06 J1 - Canadian Calorie Counting	3 / 3
CCC '06 J2 - Roll the Dice	3 / 3
CCC '06 J3 - Cell-Phone Messaging	3 / 3
CCC '06 J4 - It's tough being a teen!	7 / 7
CCC '06 S1 - Maternity	5 / 5
CCC '06 S2 - Attack of the CipherTexts	0.100 / 5
CCC '06 S5 - Origin of Life	15 / 15
CCC '07 J1 - Who is in the Middle?	3 / 3
CCC '07 S2 - Boxes	5 / 5
CCC '08 J1 - Body Mass Index	3 / 3
CCC '08 J2 - Do the Shuffle	3 / 3
CCC '08 J4 - From Prefix to Postfix	7 / 7
CCC '08 S1 - It's Cold Here!	5 / 5
CCC '08 S2 - Pennies in the Ring	5 / 5
CCC '09 J1 - ISBN	3 / 3
CCC '09 J3 - Good Times	5 / 5
CCC '09 S2 - Lights Going On and Off	2 / 10
CCC '09 S3 - Degrees Of Separation	10 / 10
CCC '10 J2 - Up and Down	5 / 5
CCC '10 J4 - Global Warming	5 / 5
CCC '10 J5 - Knight Hop	7 / 7
CCC '10 S1 - Computer Purchase	5 / 5
CCC '10 S2 - Huffman Encoding	5 / 5
CCC '11 J1 - Which Alien?	3 / 3
CCC '11 J4 - Boring Business	7 / 7
CCC '11 J5 - Unfriend	7 / 7
CCC '11 S1 - English or French?	5 / 5
CCC '11 S2 - Multiple Choice	3 / 3
CCC '11 S3 - Alice Through the Looking Glass	10 / 10
CCC '12 J1 - Speed fines are not fine!	3 / 3
CCC '12 J2 - Sounds fishy!	3 / 3
CCC '12 J3 - Icon Scaling	3 / 3
CCC '12 J4 - Big Bang Secrets	3 / 3
CCC '12 S2 - Aromatic Numbers	5 / 5
CCC '12 S5 - Mouse Journey	7 / 7
CCC '13 J1 - Next in line	3 / 3
CCC '13 J2 - Rotating letters	3 / 3
CCC '13 S2 - Bridge Transport	5 / 5
CCC '13 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
CCC '14 J1 - Triangle Times	3 / 3
CCC '14 J2 - Vote Count	3 / 3
CCC '14 J3 - Double Dice	3 / 3
CCC '15 J1 - Special Day	3 / 3
CCC '15 J2 - Happy or Sad	3 / 3
CCC '15 J3 - Rövarspråket	5 / 5
CCC '15 J4 - Wait Time	5 / 5
CCC '15 S1 - Zero That Out	3 / 3
CCC '15 S2 - Jerseys	5 / 5
CCC '16 J1 - Tournament Selection	3 / 3
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 J4 - Arrival Time	5 / 5
CCC '16 S2 - Tandem Bicycle	5 / 5
CCC '17 J1 - Quadrant Selection	3 / 3
CCC '17 J2 - Shifty Sum	3 / 3
CCC '17 J4 - Favourite Times	5 / 5
CCC '17 S1 - Sum Game	3 / 3
CCC '17 S2 - High Tide, Low Tide	5 / 5
CCC '17 S3 - Nailed It!	7 / 7
CCC '18 J1 - Telemarketer or not?	3 / 3
CCC '18 J2 - Occupy parking	3 / 3
CCC '18 J3 - Are we there yet?	3 / 3
CCC '18 J5 - Choose your own path	7 / 7
CCC '18 S1 - Voronoi Villages	3 / 3
CCC '18 S2 - Sunflowers	5 / 5
CCC '18 S3 - RoboThieves	10 / 10
CCC '18 S4 - Balanced Trees	15 / 15
CCC '19 J1 - Winning Score	3 / 3
CCC '19 J2 - Time to Decompress	3 / 3
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 S1 - Flipper	3 / 3
CCC '19 S2 - Pretty Average Primes	5 / 5
CCC '20 J1 - Dog Treats	3 / 3
CCC '20 S1 - Surmising a Sprinter's Speed	5 / 5
CCC '20 S2 - Escape Room	10 / 10
CCC '21 J4 - Arranging Books	7 / 7
CCC '21 S1 - Crazy Fencing	5 / 5
CCC '21 S2 - Modern Art	7 / 7
CCC '21 S3 - Lunch Concert	10 / 10
CCC '22 J5 - Square Pool	10 / 10
CCC '22 S1 - Good Fours and Good Fives	5 / 5
CCC '22 S3 - Good Samples	10 / 10
CCC '22 S4 - Good Triplets	15 / 15
CCC '97 S1 - Sentences	5 / 5
CCC '97 S2 - Nasty Numbers	5 / 5
CCC '98 S2 - Cross Number Puzzle	5 / 5
CCCHK '08 J3 - Phone book	5 / 5
CCCHK '15 J3 - Queens can't attack me!	5 / 5

Problem	Score
CCO '04 P6 - Orko	15 / 15
CCO '05 P4 - Primed Sequences	12 / 12
CCO '12 P5 - Sample Size	7 / 7
CCO '13 P3 - LHC	12 / 12
CCO '14 P1 - Troyangles	10 / 10
CCO '14 P4 - Where's That Fuel?	7 / 7
CCO '96 P1 - Train Swapping	5 / 5
CCO '97 P2 - Alien Invasion	10 / 10

Problem	Score
Next Prime	5 / 5
Longest Common Subsequence	7 / 7
Single Source Shortest Path	7 / 7

User Isaac13

Points breakdown

AAC (22 points)

ACC (24 points)

Baltic OI (10 points)

Bulgarian OI (12 points)

CCC (575.300 points)

CCO (78 points)

Classics (19 points)

COCI (167 points)

Data Structure Tests (10 points)

DMOPC (321 points)

DWITE (108 points)

ECOO (44 points)

FHC (20 points)

GFSSOC (32 points)

ICPC (15 points)

Mock CCC (51 points)

Mock CCO (10 points)

MWC (23 points)

Olympiads School (17 points)

SAC Coding Challenge (15 points)

Seasonal (46 points)

TLE (38 points)

TSOC (17 points)

Uncategorized (374 points)

VM7WC (45 points)

WAC (12 points)

Woburn Challenge (22 points)

YAC (5 points)

Problem	Score
COCI '06 Contest 2 #2 ABC	3 / 3
COCI '06 Contest 3 #1 Patuljci	5 / 5
COCI '06 Contest 5 #2 Natrij	5 / 5
COCI '06 Contest 6 #1 Prase	5 / 5
COCI '07 Contest 3 #3 Tajna	5 / 5
COCI '07 Contest 6 #2 Semafori	7 / 7
COCI '07 Contest 6 #3 Granica	10 / 10
COCI '08 Contest 1 #1 Skocimis	5 / 5
COCI '08 Contest 2 #1 Kornislav	5 / 5
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '08 Contest 3 #1 Pet	5 / 5
COCI '09 Contest 1 #1 Note	3 / 3
COCI '10 Contest 7 #2 Kolo	5 / 5
COCI '10 Contest 7 #3 Gitara	7 / 7
COCI '13 Contest 1 #2 Kušač	5 / 5
COCI '14 Contest 2 #2 Utrka	5 / 5
COCI '14 Contest 3 #4 Coci	5 / 15
COCI '14 Contest 5 #1 Funghi	3 / 3
COCI '14 Contest 5 #3 Traktor	7 / 7
COCI '15 Contest 2 #1 Marko	5 / 5
COCI '15 Contest 4 #3 Deathstar	7 / 7
COCI '15 Contest 5 #3 Perica	10 / 10
COCI '16 Contest 1 #1 Tarifa	3 / 3
COCI '16 Contest 3 #1 Imena	3 / 3
COCI '16 Contest 4 #2 Kartomat	5 / 5
COCI '17 Contest 2 #2 ZigZag	5 / 5
COCI '21 Contest 1 #1 Ljeto	5 / 5
COCI '21 Contest 6 #3 Naboj	10 / 10
COI '06 #1 Patrik	12 / 12

Problem	Score
DMOPC '13 Contest 3 P2 - Phone Microwave	7 / 7
DMOPC '13 Contest 3 P3 - Crossing Field	7 / 7
DMOPC '14 Contest 2 P1 - Logging Log	3 / 3
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 3 P3 - Not Enough Personnel!	7 / 7
DMOPC '14 Contest 3 P4 - Not Enough Testers!	10 / 10
DMOPC '14 Contest 5 P3 - Brotherly Sequence	5 / 5
DMOPC '14 Contest 6 P2 - GO Faster	5 / 5
DMOPC '15 Contest 3 P3 - Dimethylbenzene	7 / 7
DMOPC '16 Contest 1 P3 - Shoe Shopping	7 / 7
DMOPC '16 Contest 1 P5 - Blood Tubes	12 / 12
DMOPC '16 Contest 4 P1 - Fast Exponents	5 / 5
DMOPC '16 Contest 4 P2 - Systests	7 / 7
DMOPC '17 Contest 1 P1 - Fujō Neko	5 / 5
DMOPC '17 Contest 5 P2 - Mimi and Binary	5 / 5
DMOPC '17 Contest 5 P3 - Mimi and Primes	7 / 7
DMOPC '18 Contest 2 P0 - Mimi and Video Games	3 / 3
DMOPC '18 Contest 2 P1 - Pumpkin Patches	3 / 3
DMOPC '18 Contest 2 P2 - Booster Cushions	5 / 5
DMOPC '18 Contest 2 P4 - Damage Output	7 / 7
DMOPC '18 Contest 3 P2 - Bob and French Class	7 / 7
DMOPC '18 Contest 4 P2 - Dr. Henri and Responsibility	7 / 7
DMOPC '18 Contest 5 P3 - A Familiar Problem	7 / 7
DMOPC '18 Contest 6 P1 - DNA or RNA?	3 / 3
DMOPC '19 Contest 1 P1 - Test Scores	5 / 5
DMOPC '19 Contest 1 P2 - Good Writing	7 / 7
DMOPC '19 Contest 2 P1 - Box and Whiskers	5 / 5
DMOPC '19 Contest 2 P2 - Squares	7 / 7
DMOPC '19 Contest 3 P1 - Mode Finding	5 / 5
DMOPC '19 Contest 4 P0 - Yikes	3 / 3
DMOPC '19 Contest 4 P1 - Valid Strings	5 / 5
DMOPC '19 Contest 5 P2 - Charlie's Crazy Conquest	5 / 5
DMOPC '19 Contest 7 P0 - Contest Feedback	3 / 3
DMOPC '19 Contest 7 P1 - Hydrocarbons	7 / 7
DMOPC '19 Contest 7 P2 - Dinner Party	10 / 10
DMOPC '20 Contest 1 P2 - Victor's Moral Dilemma	5 / 5
DMOPC '20 Contest 1 P3 - Victor's Algorithm	7 / 7
DMOPC '20 Contest 2 P1 - Laugh Graphs	5 / 5
DMOPC '20 Contest 2 P2 - Lousy Christmas Presents	5 / 5
DMOPC '20 Contest 5 P2 - On The Clock	7 / 7
DMOPC '20 Contest 6 P2 - Interpretive Art	7 / 7
DMOPC '21 Contest 3 P1 - Sums & Differences	7 / 7
DMOPC '21 Contest 7 P1 - Chika Grids	5 / 5
DMOPC '21 Contest 7 P2 - Knitting Scarves	7 / 7
DMPG '15 S5 - Black and White	12 / 12
DMPG '16 B1 - BFS	3 / 3
DMPG '16 S1 - Admin War II	5 / 5
DMPG '16 S5 - Pizza Bag	12 / 12
DMPG '17 B2 - Yoda	3 / 3
DMPG '17 S2 - Anime Conventions	10 / 10
DMPG '18 B1 - Pizza Orders	3 / 3
DMPG '18 S2 - Mimi and K-uteness	7 / 7
DMPG '19 B1 - Registration	3 / 3

Problem	Score
DWITE '07 R1 #1 - Vanilla Primes	3 / 3
DWITE '07 R1 #4 - Stacks of Blocks	5 / 5
DWITE '07 R2 #4 - All Is Balanced	5 / 5
DWITE '07 R2 #5 - Bridges In A Graph	7 / 7
DWITE '07 R3 #2 - There's An Essay In My Code	5 / 5
DWITE '07 R4 #2 - And the winner is...	5 / 5
DWITE '07 R4 #4 - Shortest path around	7 / 7
DWITE '07 R5 #2 - Number of factors	5 / 5
DWITE '08 R2 #2 - My favourite digit	3 / 3
DWITE '08 R3 #2 - Wordcount++	5 / 5
DWITE '09 R1 #3 - That Missing Number	5 / 5
DWITE '09 R1 #5 - Running In Circles	7 / 7
DWITE '09 R2 #2 - Mini DWITE	3 / 3
DWITE '09 R3 #2 - Rounding to Fibonacci	5 / 5
DWITE '09 R5 #2 - Round to Second Prime	5 / 5
DWITE '10 R1 #1 - Age Gate	3 / 3
DWITE '10 R5 #2 - Safe from Rooks	5 / 5
DWITE '11 R1 #2 - Penny Game	5 / 5
DWITE '11 R5 #1 - Age Gate	3 / 3
DWITE '12 R1 #4 - Trick or Tree'ing	5 / 5
DWITE '12 R2 #4 - Magic Trick	7 / 7
DWITE '12 R5 #2 - Copycat SMS	5 / 5

Problem	Score
ECOO '07 R3 P1 - Sum of Primes	7 / 7
ECOO '13 R1 P2 - The Luhn Algorithm	5 / 5
ECOO '17 R3 P2 - Family Trees	7 / 7
ECOO '19 R2 P1 - Email	5 / 5
ECOO '20 P3 - Captcha Fun	7 / 7
ECOO '21 P2 - DNA Derren	3 / 3
ECOO '21 P3 - Quintessential Questions	3 / 3
ECOO '21 P4 - Chris' Candy	7 / 7

Problem	Score
Facebook Hacker Cup '15 Round 1 P1 - Homework	10 / 10
Facebook Hacker Cup '15 Round 2 P1 - Lazy Sort	10 / 10

Problem	Score
GFSSOC '15 Fall J1 - CodeFights	3 / 3
GFSSOC '15 Fall J4 - Marathon	7 / 7
GFSSOC '15 Fall J5 - Nightmare-a-thon	10 / 10
GFSSOC '15 Fall S2 - Hearth	5 / 5
GFSSOC '15 Winter J5 - Secret Santa	7 / 7

Problem	Score
ACM U of T Tryouts C0 B - Interleaving Leaves	5 / 5
ICPC NAQ 2016 J - Quick Estimates	3 / 3
ICPC PACNW 2016 C - Cameras	7 / 7

Problem	Score
Mock CCC '14 S3 - Spreadsheet Sorting	7 / 7
Mock CCC '15 J1 - 416	3 / 3
Mock CCC '18 Contest 1 J4/S2 - A Square Problem	5 / 5
Mock CCC '18 Contest 2 J3/S1 - An Array Problem	7 / 7
Mock CCC '18 Contest 3 J4/S2 - A Median Problem	5 / 5
Mock CCC '18 Contest 3 S4 - A Graph Problem	10 / 10
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity	7 / 7
Valentine's Day '18 J5 & S2 - Ctudor's Cute Orchids	7 / 7

Problem	Score
MWC '15 #1 P2: Postcard	3 / 3
MWC '15 #1 P5: Love Guru	7 / 7
MWC '15 #2 P2: Towering Towers	10 / 10
MWC '15 #8 P1: Push-up Contest	3 / 3

Problem	Score
DMOJLand Series: Fake Judges	7 / 7
Mynerva	7 / 7
OCC '19 B1 - Darcy_Liu	3 / 3

Problem	Score
SAC '22 Code Challenge 3 P2 - Unicycle License	5 / 5
SAC '22 Code Challenge 3 P3 - Bob Sort	5 / 5
SAC '22 Code Challenge 4 P3 - Obligatory Math Problem	5 / 5

Problem	Score
Back To School '16: Paradox	5 / 5
Back To School '18: Letter Frequency	7 / 7
Is it a Tree?	7 / 7
Valentine's Day '15 P2 - Simon and Marcy	7 / 7
WOSS Dual Olympiad 2022 J3/S1: Christmas List	5 / 5
WOSS Dual Olympiad 2022 S2: Festive Card Game	7 / 7
New Year's '15 P1 - Invitation Devastation	3 / 3
New Year's '16 P3 - Arithmetic Snowman	5 / 5

Problem	Score
TLE '15 P1 - Power Rankings	5 / 5
TLE '16 Contest 6 (Mock CCC) S1 - Writing the CCC	5 / 5
TLE '16 Contest 7 P4 - Abstract Problem	10 / 10
TLE '17 Contest 2 P2 - Unlucky Numbers	5 / 5
TLE '17 Contest 4 P2 - Microwave Buttons	5 / 5
TLE '17 Contest 5 P1 - Guess the Number	3 / 3
TLE '17 Contest 8 P2 - Ship Defense	5 / 5

Problem	Score
TSOC '15 Contest 1 #5 - Giant Ants	7 / 7
TSOC '15 Contest 2 #2 - Diamonds	5 / 5
TSOC '15 Contest 2 #5 - Bebiliths	5 / 5

Problem	Score
16 BIT S/W ONLY	3 / 3
2-D Permutations	10 / 10
2spooky4me	7 / 7
Appleby Contest '19 P1 - Darcy's Debilitating Demands	3 / 3
Appleby Contest '19 P2 - The Love Letter	5 / 5
Appleby Contest '19 P4 - Rectangles	7 / 7
Appleby Contest '19 P5 - Matrix Operation	10 / 10
ACSL '09 Practice P4 - Rank	7 / 7
Sum of Primes 2	5 / 5
Another Sorting	5 / 5
A Plus B	3 / 3
Palindromic Integer Partition	5 / 5
List Minimum	3 / 3
List Minimum (Easy)	3 / 3
Boolean	3 / 3
Mighty Cactus	7 / 7
Champion Contest	7 / 7
CPC '19 Contest 1 P1 - Distance	3 / 3
Educational DP Contest AtCoder C - Vacation	7 / 7
Educational DP Contest AtCoder D - Knapsack 1	7 / 7
Educational DP Contest AtCoder E - Knapsack 2	7 / 7
Educational DP Contest AtCoder G - Longest Path	10 / 10
Educational DP Contest AtCoder K - Stones	10 / 10
Exam Prep	7 / 7
Flip the Switches	5 / 5
PEG Test '11 - Cyclopian Puzzle	10 / 10
King Graff's Defense	15 / 15
Graph Contest 2 P1 - Connected Components	7 / 7
A Greedy Problem	5 / 5
Hardcore Grinding	5 / 5
Hello, World!	3 / 3
Word Scrambler	5 / 5
Count The Triplets	7 / 7
Multiplication Improvement	5 / 5
OCC '19 S2 - Rimuru's Number Game	5 / 5
Prefix Digits	7 / 7
The Mirror	5 / 5
PIB '20 P1 - Marcus and Head Bonks	3 / 3
Postfix Notation	7 / 7
Prime Factorization	5 / 5
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
RGPC '18 P3 - Chocolate Day	10 / 10
Riddle Troll	10 / 10
RTE '16 S3 - School Traversal	7 / 7
The Cosmic Era P2 - Uneven Sand	5 / 5
The Cosmic Era P3 - Battle Positions	7 / 7
Dynamic Range Minimum Test	12 / 12
Coding Spree	7 / 7
STNBD P2 - Claire Elstein	12 / 12
TSS Club Fair 2017 Problem A	3 / 3
TSS Club Fair 2017 Problem B	7 / 7
UCC Coding Competition '20 P2 - Optimal Skiing	3 / 3
UCC Coding Competition '20 P3 - Farmer Bob	5 / 5
UCC Coding Competition '21 P3 - Long Pizza	5 / 5
UCC Coding Competition '21 P5 - Woodcutting Game	10 / 10
Intertwined Strings	7 / 7
UTS Open '18 P3 - Restaurants	7 / 7
A Very Coordinated Christmas	7 / 7

Problem	Score
VM7WC '15 #1 Silver - Jung Goon	5 / 5
VM7WC '15 #2 Bronze - Recruits!	3 / 3
VM7WC '15 #2 Gold - Uniting the Earth Empire	12 / 12
VM7WC '16 #2 Bronze - G	5 / 5
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #4 Silver - Tests or Test Cases?	5 / 5
VM7WC '16 #6 Gold - Cold War Telecom	10 / 10

Problem	Score
Wesley's Anger Contest 5 Problem 1 - Matryoshka Acorns	5 / 5
Wesley's Anger Contest 5 Problem 2 - MATH 137 at Squirreloo	7 / 7

Problem	Score
WC '18 Contest 3 J2 - Net Weight	5 / 5
WC '18 Contest 3 S2 - Gym Tour	12 / 12
WC '18 Finals J1 - Conditional Contracts	5 / 5