Ad-hoc Problems

Given a long string of text, you will have to print it following these rules: Replace all consecuti...

Implementation Hard 31/122/475

In this problem, you will have to print the nnn-th prime number. The first few prime numbers are giv...

Implementation, NumberTheory Hard 711/1k/4k

Byang and his little brother Kuno loves Cricket. But they never went to the stadium to watch a match...

TarifEzaz BruteForce, Implementation Moderate 908/1k/2k

Given any circle, if you divide the circumference of that circle with its diameter, you would always...

TarifEzaz BruteForce, Implementation, String Moderate 454/474/832

Goats are interesting creatures. They are incredibly durable and can fall from great heights, be str...

Implementation Moderate 382/457/934

Montu Mia is a student of “Omok School”. He likes to eat an icecream everyday. But he also likes to ...

Raiyan13 Implementation Moderate 349/359/562

You all know Emrul bhai, right? He is a genius guy. He knows how to add two integer numbers and so d...

Farhan_meb Bignum, Implementation, String Hard 198/302/760

There is a string sss of length nnn containing lowercase letters and an integer kkk. Among the lette...

nurshuvo51 BruteForce, Greedy Hard 122/198/801

Bangladesh Premier League is in Sylhet for the first time. Today's match is Sylhet Sixers vs the Dha...

emoncse Implementation Moderate 935/1k/3k

You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c...

iammarajul BruteForce, DP, Implementation Hard 138/363/1k

Giving Hashtag in Social Network is very popular now a day. But Poltu is very new in Social Network....

tahmedge Implementation, String Easy 950/990/1k

Itsy needs your help with her magic cards. Her magic cards grant her special spider-witch powers. Un...

BruteForce, Graph, Implementation Moderate 135/259/600

Given an integer N, print the trailing 4 digits of N!N!N! (N factorial). N!=N×(N−1)×(N−2)×...×1N! = ...

Implementation Moderate 1k/1k/3k

Given an array of N numbers and two indices, determine the sum of the numbers in the array between (...

Implementation Easy 1k/1k/1k

Given a sequence of opening and closing parentheses ("(" and ")") you will have ...

DataStructure, Implementation Moderate 657/804/2k

Salam is a school teacher. He takes ICT of class 8th. The head of the school wants to know how many ...

shojib_mu Implementation Easy 337/341/401

Michael Scofield and Lincoln Burrows are working on a secret mission. Michael is needed to give a se...

HillolTalukdar Implementation, String Moderate 122/130/219

'Eeny meeny miny moe' is a well-known nursery rhyme in English, used (among other things) by kids to...

Implementation, Simulation Moderate 41/45/83

Shibli is a very good student. He is very regular and attentive in his classes. He is very serious a...

hasan169 BruteForce, Implementation Easy 686/721/1k

Java Development Kit (JDK) installer for Mac OS X has a bug: Can you spot it? Notice how Java is ch...

faiyaz26 Implementation, String Hard 221/382/749

Alayna loves playing. Every night before going to sleep, she plays different games with Baba. Now Al...

shajia BruteForce, Implementation Moderate 715/747/1k

Sohel vai reads newspaper every morning. The newspaper he reads contains some good features includin...

darkprinx Implementation Moderate 649/702/1k

Jenith is a student of CSE of Metropolitan University (MU). Recently her fifth term’s result has bee...

Jakaria_MU BruteForce, Implementation Moderate 132/162/428

Monu mia is a reverse man! Never heard of reverse man? It means if you ask him to write something in...

subeen Implementation, String Easy 893/1k/2k

Did you know that certain crops cannot grow next to each other? Given the layout of a field as a gri...

Implementation Moderate 539/597/1k