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Switch Statement Problem

dasboshiet (30)
So... I know it is a long code and messy but bear with me on this.
The problem is that when I enter the same letter twice, it works, but then it jumps to case 'P' after it checks for the same letter. I don't know why this happens because before i added the check for consonant function, it worked fine.

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#include <cstdlib>
#include <cmath>
#include <string>
#include <iostream>
#include <cstring>
#include <vector>
#include <ctime>

using namespace std;

int main()
{
    int test = 0;
    string phrase, sentence;
    std::vector<char> guesses;

    srand (time(NULL));
    test = rand() % 4 + 1;
    cout << "#" << test << endl;

    switch(test) {
    case 1:
        phrase = "thing";
        sentence = "computer science";
        break;

    case 2:
        phrase = "Subject";
        sentence = "math and science";
        break;

    case 3:
        phrase = "Subject";
        sentence = "pony and unicorn";
        break;

    case 4:
        phrase = "Subject";
        sentence = "dinosaurs and rhino";
        break;
    }

    cout << "The phrase is..." << phrase << endl;
    cout << "Here is your sentence..." << sentence << endl;

    int length;
    length = sentence.length();
    char letter;
    int arysize[length];
    string rounds = "";
    string again = "";
    for(int z = 0; z < length; z++) {
        arysize[z] = 0;
    }

    int count = 0;

    while(count != 10) {
        cout << "Type S (to spin wheel), P(to guess word), or V(to buy a vowel)" << endl;
        char option;

        while(cin) {
            cin >> option;
            if(option == 'S' || option == 'P' || option == 'V')
                break;
            else {
                cout << "You have to enter either S, P or V." << endl;
            }
        }

        switch(option) {

        case 'S':
        {
            int wordsCorrect = 0;
            int wordsCount = 0;
            cout << "Enter a letter" << endl;
            cin >> letter;
            bool letterCheck = false;

            guesses.push_back(letter);
            int size = guesses.size();

            while(letterCheck != true) {
                if(letter == 'a' || letter == 'e' || letter == 'i' || letter == 'o' || letter == 'u') {
                    letterCheck = false;
                    guesses.pop_back();
                    cout << "You cannot enter a vowel. Please enter a consonant." << endl;
                    cin >> letter;
                } else {
                    letterCheck = true;
                    break;
                }
            }
//Checks for duplicate letters
            if(size > 1) {
                for(int y = 0; y < size-1 ; y++) {

                    if(letter == guesses[y]) {
                        letterCheck = false;
                        guesses.pop_back();
                        cout << "You cannot enter the same letter twice." << endl;
                        break;
                    } else
                        letterCheck = true;
                }
            }

            if(letterCheck == true)
            {
                for(int j = 0; j < length; j++) {
                    if(sentence[j] == letter) {
                        arysize[j] = 1;
                        wordsCorrect++;
                    } else if (sentence[j] == ' ')
                        arysize[j] = 1;
                }

                for (int m = 0; m < length; m++) {
                    if(arysize[m] == 1) {
                        cout << sentence[m];
                    } else
                        cout << "_";
                }

                cout << "\nThe amount of words correct is... " << wordsCorrect << endl;

                for(int a = 0; a < length; a++) {
                    if(arysize[a] == 1)
                        wordsCount++;
                }

                if(wordsCount == length) {
                    cout << "You win this round!" << endl;
                    break;
                }

                count++;
                cout << "\nYou have " << 10 - count << " tries left." << endl;
                break;
            }
        }

        case 'P': {
            string guessPhrase = "";

            cout << "Enter your guess here." << endl;
            cin.ignore();
            getline(cin,guessPhrase);
            if(sentence == guessPhrase) {
                cout << "You win!" << endl;
                int temp = (10 - count);
                count += temp;
            } else {
                count++;
                cout << "You lose all your money." << endl;
                cout << "\nYou have " << 10 - count << " tries left." << endl;
                break;
            }
        }
        }
    }
}
Codermik (835)

You are missing a break; at the end of your case 'S' and case 'P' blocks. The only breaks I see are inside IF statements, but of those IF statements are not true then no break will be run and it will continue and run the case 'P' code.
KyiannaJones (20)
You are missing a few breaks within your switch, if you correct this your code should run.
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