Starting Code.cpp

#include<bits/stdc++.h>
using namespace std;
#define int long long

const int N=100000+50;

signed main(){
    ios::sync_with_stdio(false);
    
    
}
/*

Mistakes to take care of-

1. For string s, s+=a is similar to appending to s. s = s + a takes O|s| + O|a| time. 
Relevant problem where I made mistake - https://codeforces.com/contest/1326/problem/D2

2. Try using constant value of N to declare arrays, etc. Else you might get hacked / FST.
Relevant problem where I made a mistake - https://codeforces.com/contest/1307/problem/D

3. While exponentiation, avoid modding the exponent. Or mod with mod-1.
Relevant problem where I made a mistake - https://codeforces.com/contest/1332/problem/E

4. modulo operator (%) in c++ returns the sign of the divisor.
Eg. (-1%8) = -1
Relevant problem where I made a mistake - https://codeforces.com/contest/1345/submission/79809463

5. a*k=b*k (mod m) does not necessarily mean a=b (mod m)

Relevant problem where I made a mistake - https://codeforces.com/contest/1389/problem/E

6. Strategies when getting stuck-
a) Check for logic
b) WRITE EXAMPLES even if it is tedious
c) Rethink
d) Make a wise decision, about solving current one or going to next one
e) GOOGLE stuff, if its some math problem or stuff
*/