Transposition Cryptography Algorithms Decryption Cipher Text to Plain Text using c++

Code Here

	#include <bits/stdc++.h>
	using namespace std;
	string Transposition_Decryption(string cipherText, string key_value)
	{
	int numbers[10], saveNumbers[10], sortarray[10];
	for(int i = 0; i < 10; i ++){
	numbers[i] = 0;
	saveNumbers[i] = 0;
	sortarray[i] = 0;
	}
	int cipherTextln = cipherText.size();
	int keyln = key_value.size();
	int cnt = 0;
	bool check = true;
	for(int i = 0; i < keyln; i++){
	int num = key_value[i] - '0';
	numbers[num]++;
	if(numbers[num] > 1){
	check = false;
	break;
	}
	saveNumbers[i] = num;
	sortarray[i] = num;
	}
	if(check == false) return "Wronh Key TRy to Use Unique Digits";
	int row = cipherTextln / keyln;
	int col = keyln;
	char plainArray[row][col];
	sort(sortarray, sortarray + keyln);
	// find col and push chars on this col
	int pos = 0;
	for(int i = 0; i < keyln; i++){
	int foundCol = 0;
	for(int j = 0; j < keyln; j++){
	if(sortarray[i] == saveNumbers[j]){
	foundCol = j;
	break;
	}
	}
	for(int i1 = 0; i1 < row; i1++){
	plainArray[i1][foundCol] = cipherText[pos++];
	}
	}
	string plainTxt = "";
	for(int i = 0; i < row; i++){
	for(int j = 0; j < col; j++){
	plainTxt += plainArray[i][j];
	}
	}
	char chArray[10] = {'Z', 'Y', 'X', 'W', 'V', 'U', 'T', 'S', 'R', 'Q'};
	int extraChar = 0;
	for(int i = cipherTextln - 1; ; i--){
	if(plainTxt[i] == chArray[extraChar]) extraChar++;
	else break;
	}
	string ansPlainText = "";
	for(int i = 0; i < cipherTextln - extraChar; i++){
	ansPlainText += plainTxt[i];
	}
	return ansPlainText;
	}
	int main()
	{
	string CipherText, key_value;
	cout << "Enter Cipher Text.... : " << endl;
	getline(cin, CipherText);
	cout << "Enter Key Value.... : " << endl;
	cin >> key_value;
	cout << "Plain Text : " << endl;
	cout << Transposition_Decryption(CipherText, key_value) << endl;
	}

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