Step 1: Read the problem statement.

Step 2: Scratch your head and try to figure out what the problem is asking.

Step 3: Go for a walk to clear your mind.

Step 4: Eat a snack to fuel your brain.

Step 5: Realize that you have no idea what you're doing.

Step 6: Google the problem and read other people's solutions.

Step 7: Realize that you still have no idea what you're doing.

Step 8: Cry a little bit.

Step 9: Try to implement a solution.

Step 10: Submit your code and pray that it passes the test cases.

Conclusion: Congratulations! You have now successfully solved a Codeforces problem in just 10 easy steps (or not). Remember, coding can be challenging, but it's also a lot of fun. Keep practicing and never give up!

In the realm of algorithms and code,

Where the brightest minds seek to decode,

A name echoes through the hallowed halls,

Of a programming legend who never falls.

Gennady Korotkevich, the Tourist they say,

A prodigy from Belarus, in every way,

He conquers competitions with ease,

Leaving his rivals on their knees.

With his fingers on the keyboard, he flies,

Through problems that leave most mortals paralyzed,

In his mind, he sees the answer clear,

A genius unmatched, year after year.

He's won the IOI six times in a row,

And countless other titles, as we know,

Yet he remains humble, a gentle soul,

A role model for every young goal.

His passion for coding inspires,

A whole generation to reach higher,

And dream of a future, where they too,

Can create the impossible, like he can do.

So let us pay homage to this coding star,

Whose brilliance shines from near and far,

Gennady Korotkevich, the Tourist, we sing,

A true legend, a programming king.

int L = 0, R = 0;
while(L < R){
    if(v[L] == x) cout << "I found it";
    if(v[R] == x) cout << "I found it";

    L++, R--;
}

Marinush only expert XD LOL!!!!!! DROPPED TO EXPERT HAHHAHAHAHAHAHA.

sstudyyyyyy moreeee!!!!