One liner & Code Golf | Contest

I invite everyone to the contest, which will take place on August 1, 2023 at 15:00UTC

Contest Rules:

In this contest, you need to write one-line solutions for problems.

The solution is scored by the length of the code (Code Golf). No penalties.

Only Python.

Contest info:

• Number of problems: 8

• Duration: 3 hours

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

UPD

Contest is finished

Best solutions:

print('YNeos'[int(input())%int(input())>0::2])

print((lambda*a:a[1]+a[-1])(*map(int,open(0).read().split())))

print(['14','23']['.'>input()]['.'>input()])

print(*sorted(open(0).read().split()[1:],key=lambda x:(sum(map(int,x)),x[0],int(x))))

print([1+(i%4*5+i%100*4-i%400)%7for i in range(4000)].index(*[int(input())for i in'  '][::-1])+1)

print(max(__import__('collections').Counter(str(sorted(i.split()))for i in open(0)).values()))

print(sum(int(c)*int('132645'[i%6])for i,c in enumerate(input()[::-1]))%7)

print((lambda a:len(set(__import__('functools').reduce(lambda x,y:(lambda l,a,b:[i if i!=l[a]else l[b]for i in l])(x,*map(int,input().split())),range(a[1]),range(a[0]+1))))-1)([*map(int,input().split())]))

CPython Intermediate Contest #11

I invite everyone to the contest, which will take place on July 30, 2023 at 14:35UTC

Contest info:

• Number of problems: 12

• Difficulty of problems: < 2300

• Duration: 3 hours

• Contest type: ACM20M

• Languages: C++, Python, C, Kotlin, Haskell, R, Nodejs, PHP, C#, Java.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

CPython Beginner Contest #32

I invite everyone to the contest, which will take place on July 26, 2023 at 14:35UTC

Contest info:

• Number of problems: 13

• Difficulty of problems: easy problems(800-2100)

• Duration: 3 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R, Nodejs, PHP, C#, Java.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

CPython Intermediate Contest #10

I invite everyone to the contest, which will take place on July 4, 2023 at 15:00UTC

Contest info:

• Number of problems: 12

• Difficulty of problems: < 2300

• Duration: 3 hours

• Languages: C++, Python, C, Kotlin, Haskell, R, Nodejs, PHP, C#.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

UPD. Winners:

1. physics
2. shivang.tiwari.9236
3. anonim.ghost.uz
4. aminjonshermatov
5. The_Samurai

Code Golf | Contest

I invite everyone to the contest, which will take place on July 2, 2023 at 15:00UTC

Code golf is a type of recreational programming competition in which participants try to write the shortest source code that implements some algorithm.

There are two languages available in this contest: C++ and Python. Each problem has a points. You will get 100% points for the problem if you solve the problem using no more than x characters (including spaces), where x is given separately for each language.

Contest rules:

• You must implement the shortest solution for the problems.

• The shorter the length of the solutions, the more points you get for the problem

• Number of problems: 8

• Duration: 3 hours

• Languages: C++, Python.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

UPD

The contest is over. The best solutions for all problems:

A

#import<iostream>
int n,a;int main(){std::cin>>n;for(;n;n--)a+=n%10==3|n/10%10==3|n/100%10==3;std::cout<<a;}

print(sum('3'in str(i+1)for i in range(int(input()))))

B

#import<iostream>
int a,b,k,s;main(){std::cin>>a>>b>>k;while(a<=b)s+=a*(a%k==0),a++;std::cout<<s;}

a,b,k=map(int,input().split());print(sum(range(a-1+k-(a-1)%k,b+1,k)))

C

#import<iostream>
int n,s,i,j;main(){std::cin>>n;int a[n];for(int&i:a){std::cin>>i;for(int&j:a)if(&j<&i)s+=j>2*i;}std::cout<<s;}

n,a,s=int(input()),[0]*1001,0
for x in map(int,input().split()):s+=sum(a[2*x+1:]);a[x]+=1
print(s)

D

#import<bits/stdc++.h>
int n,x,c[25];main(){std::cin>>n;while(n--)std::cin>>x,c[24-x/100]++;std::cout<<25-(std::max_element(c,c+25)-c);}

l=[0]*21;exec("l[int(input())//100]+=1;"*int(input()));print(21-l[::-1].index(max(l)))

E

#import<bits/stdc++.h>
using namespace std;
main(){int n,m;cin >> n;tuple<int,int,int>a[n];for(auto&[x,y,z]:a){cin>>m;z=m;while(m)x+=m%10,y=m%10,m/=10;}sort(a,a+n);for(auto&[x,y,z]:a)cout<<z<<" ";}

input();print(*sorted(input().split(),key=lambda x:(sum(map(int,x)),x[0],int(x))))

F

#import<bits/stdc++.h>
main(){int n;std::cin>>n;std::tuple<int,int,int>a[n];for(auto&[y,m,d]:a)scanf("%d/%d/%d",&d,&m,&y);std::sort(a,a+n);for(auto[y,m,d]:a)printf("%02d/%02d/%04d\n",d,m,y);}

print('\n'.join(sorted([input()for _ in range(int(input()))],key=lambda x:x.split('/')[::-1])))

G

#import<iostream>
using namespace std;main(){int n,i=1;cin>>n;while(++i<n)if(n%i<1){cout<<i<<" "<<n/i;i+=n/i;while(i++<n)cout<<" 1";exit(0);}cout<<"-1";}

n=int(input())
for i in range(2,n):if n%i<1:n//=i;print(i,n,*[1]*(i*n-n-i));exit(0)
print(-1)

CPython Beginner Contest #31

I invite everyone to the contest, which will take place on June 27, 2023 at 15:00UTC

Contest info:

• Number of problems: 14

• Difficulty of problems: easy problems(800-2100)

• Duration: 3 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R, Nodejs, PHP, C#.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

CPython Beginner Contest #30

I invite everyone to the contest, which will take place on June 17, 2023 at 15:00UTC

Contest info:

• Number of problems: 14

• Difficulty of problems: easy problems(800-2100)

• Duration: 4 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R, Nodejs, PHP, C#.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

CPython Intermediate Contest #9

I invite everyone to the contest, which will take place on May 30, 2023 at 15:00UTC

Contest info:

• Number of problems: 12

• Difficulty of problems:800-2200

• Duration: 3 hours

• Type: Ball550

• Languages: C++, Python, C, Kotlin, Haskell, R, PHP, JS, C#.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

CPython Beginner Contest #29

I invite everyone to the contest, which will take place on May 24, 2023 at 15:00UTC

Contest info:

• Number of problems: 13

• Difficulty of problems: easy problems(800-2100)

• Duration: 3 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

The ability to read someone else's solution and find errors is useful in CF rounds, and not only.

I invite you to the practice contest, where you need to hack specially selected solutions to problems.

Link to first contest: Hack it #1

P.S. Registration via Gmail/Github only.

CPython Beginner Contest #28

I invite everyone to the contest, which will take place on May 21, 2023 at 14:35UTC

Contest info:

• Number of problems: 13

• Difficulty of problems: 800-2200

• Duration: 4 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R.

Link to the platform: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github. The submit button is in the right bottom corner.

If anyone wants to try their hand at writing One Line solutions to problems, join: CPython

P.S. Registration via Gmail/Github only.l.

CPython Beginner Contest #26

I invite everyone to the contest, which will take place on May 9, 2023 at 14:35UTC

Contest info:

• Number of problems: 13

• Difficulty of problems: ezi

• Duration: 2 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R.

Link to the contest: https://cpython.uz/competitions/contests/

P.S. Registration on the platform only via Gmail/Github.

CPython Beginner Contest #25

I invite everyone to the contest, which will take place on April 28, 2023 at 14:35UTC

Contest info:

• Number of problems: 12

• Difficulty of problems: Div 2.5

• Duration: 4 hours

• Type: ACM20M(20 minute penalty for wrong attempt)

• Languages: C++, Python, C, Kotlin, Haskell, R.

Link to the contest: https://cpython.uz/competitions/contests/contest/245

P.S. Registration on the platform only via Gmail/Github.

UPD.

1. Husanboy — 7
2. Imperator — 6
3. NarzullayevMe — 6

Here you can practice on Linux.

There are 14 tasks in total. Commands runs on Ubuntu distribution.

P.S. Registration via Gmail/Github only.

If someone wants to practice using the libraries NumPy and Pandas, join.

The problems are mostly easy, but there are also problems of medium difficulty. The total number of problems = 50.

P.S. Registration via Gmail/Github only.

I invite pythonists to this contest.

Here are collected simple tasks that require python programming skills. Tasks are interesting and non-standard.

P.S. Registration via Gmail/Github only.

The ability to read someone else's solution and find errors is useful in CF rounds, and not only.

I invite you to the practice contest, where you need to hack specially selected solutions to problems.

P.S. Registration via Gmail/Github only.

If anyone wants to try their hand at writing One Line solutions to problems, join: CPython

P.S. Registration via Gmail/Github only.