📘 Day 20 – Teacher's Day Challenge | Translation

🗓️ Date: September 04, 2025
🧩 Platform: Codeforces
🔢 Problems Solved Today: 1
🎯 Focus Topic: Strings, Reversal Check

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🔗 Table of Contents

• Problem 1 – Translation

• Daily Summary

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🧩 Problem 1 – Translation

📚 Difficulty: Easy
🧠 Concepts: Strings, Reverse, Comparison

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📄 Problem Statement (Summary):
You are given two words:

• s – a Berlandish word

• t – Vasya's translation into Birlandish

The languages differ such that a valid translation means word t should be the reverse of s.

Your task is to check if Vasya translated correctly.

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🔢 Input Format:

• First line: string s (Berlandish word)

• Second line: string t (Vasya's translation)

🧾 Output Format:

• Print "YES" if t is exactly the reverse of s.

• Otherwise, print "NO".

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🔍 Example 1:
Input:

code
edoc

Output:

YES

🔍 Example 2:
Input:

abb
aba

Output:

NO

🔍 Example 3:
Input:

code
code

Output:

NO

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💡 Approach:

• Reverse string t.

• Compare reversed t with s.

• If they are equal → print "YES".

• Otherwise → print "NO".

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🧪 Code (C++):

#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    string s, s1, s2 = "";
    cin >> s;
    cin >> s1;
    for (int i = 0; i < s1.length(); i++)
    {
        s2 = s1[i] + s2;  // building reverse
    }
    if (s2 == s)
    {
        cout << "YES";
    }
    else
    {
        cout << "NO";
    }
    return 0;
}

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📸 Submission Screenshot:

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✅ Key Takeaways:

• Simple string reversal problems can be solved using reverse() or by manually reversing.

• Always check equality after reversal for correctness.

• Good practice for string manipulation basics.

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📈 Daily Summary

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🏷️ Tags:
#codeforces #strings #reverse #cpp #dsa #43DaysChallenge