B. Max and Mex | Codeforces Round #706 | CODEFORCES | SORTING | MATH

[elmoad]

thanks for the explanation and for the perfect english

[sricharan]

we are searching for miss element in array .in the question they have mentioned array is multi set. for example - [0, 0, 1, 2, 3, 3] in this case when we are searching for mex element a[1] !=1 .then as per your logic 1 is mex but mex is 4 .can you explain this.

[sivach]

Sri Charan asked one of the questions I had... So, I'm asking you another one...

I researched on few lines of your code in main(), but didn't get satisfactory explanation for what you have done and why you've done that way... The lines of code are:

ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cout<<fixed;
cout<<setprecision(10);

Can you point me to the right resource to learn and understand the advantage of writing the code this way?

[sangepunaveen]

Bro, we can also calculate, mex value in O(n), by swapping values😀😎, good explanation bro 🔥🔥

[aakashtiwari]

Tell me how can i improve main sirf A kr paata hu B nhi hota h