I am trying to solve PROBLEM . It seems to me that my logic is good but still it gives wrong answer. Can anyone show what is wrong with my logic? here is my 84964687

I have found a guideline which A Way to Practice Competitive Programming . In this he said that whose rating is between 1000-1400 they should solve atcoders beginner contest B,C problem while there was total 4 problem at the time of writting this tutorial. Now atcoders beginner contest has total 6 problems. Now how should i proceed?

I am trying to solve atcoder beginner contest 168 but there is no language C++14. How can i do that?

I am trying to solve a problem in Atcoder using C++ lang. But compiler can not execute my code. But code runs in my pc. How can i fix that?

#include<bits/stdc++.h> using namespace std; int main() { ** int k;** ** string s;** **** ** cin>>k>>s;** ** if(s.size()<=k)** ** {** ** cout<<s<<endl;** ** }** **** ** else** ** {** ** for(int i=k;i<s.size();i++)** ** {** ** s[i]='.';** ** }** **** ** cout<<s<<endl;** ** }** }

I am trying to solve 478B - Random Teams . And here is my submission 81868059 . Logic is good but still gives wrong answer in 12th test case. before 12th case there was large integer input but answer was good. I have failed to understand whats wrong with this. How should i fix this?

I don't understand what is the difference between Educational Codeforces Round and Codeforces round

I am trying to solve 1358C - Обновление Celex . Here is my submission 81604588 but getting runtime error. how can i fix this?

I am new to CF. How can i find editorial of contest that took place yesterday.

I am trying to solve https://mirror.codeforces.com/contest/478/problem/B this problem. but in test case 4 it give me erron in codeforces compiler but in my pc it gives correct answer. how can i fix this? 81477732 .