all i request is simple: help me solve my \"Roadblock\". the roadblock in my cod
ID: 3552192 • Letter: A
Question
all i request is simple: help me solve my "Roadblock".
the roadblock in my code is that i'm supposed to read in the number of cards (ranging from 2 to 5) and the card values into my blackjack program, and output the card values;
If my card values are <= 21, the program outputs the value of the cards to a result file called "output.txt"
If my cards are of invalid type, the program outputs "Invalid card type"
If my card values are >21, the program outputs "busted" to the result file.
Here's the full explanation:
The cards 2 through 10 are scored as 2 through 10 points each. The face cards - jack, queen, and king - are scored as 10 points. The goal is to come as close to a score of 21 as possible without going over 21. Hence, any score over 21 is called
Explanation / Answer
#include <iostream>
#include<fstream>
#include<string.h>
using namespace std;
//*n is the value of no:of cards(N)
//takes input from user
void getInput(char cards[], int *n, ifstream &fin)
{
fin >> *n;
cout<<"Reading cards from file: ";
for(int i=0;i<*n;i++) fin >> cards[i];
for(int i=0;i<*n;i++) cout << cards[i]<<" ";
cout<<endl;
}
//given a card computes its value
int getValueofCard(char card)
{
if(card >='2' && card <= '9') return (card - '0');
else if(card == 't' || card == 'j' || card == 'q' || card == 'k') return 10;
else if(card == 'T' || card == 'J' || card == 'Q' || card == 'K') return 10;
else if(card =='a'||card=='A')return 1;
else return 0;
}
//given the cards computes score
int computeValue(char cards[], int *n,int *flag)
{
int value; //value of a card
int sum = 0;//total
int aceCount = 0; //counter for aces
for(int i=0;i<*n;i++)
{
value = getValueofCard(cards[i]);
if(value == 0)
{
*flag=1;
return 0;
}
if(value == 1) aceCount++;
sum += value; //adding all cards with aces as ones
}
while(aceCount && sum + 10 <= 21) //if you have any aces and using ace as 11 doesnt exceed 21
{
sum += 10;
aceCount--;
}
return sum;
}
int main()
{
//opening input file
ifstream fin("input.txt");
if(!fin)
{
cout<<"Cannot open input.txt ";
return 1;
}
//opening output file
ofstream fout;
fout.open("output.txt");
if(!fout)
{
cout<<"Cannot open output.txt ";
return 1;
}
char cards[5];//array to store cards
int n; //number of cards
int score; //score of the hand
char opt; //option chose by user
int flag;
while(1)
{
flag=0;
getInput(cards, &n, fin);
score = computeValue(cards,&n,&flag);
if(flag ==1)
{
fout<<"invalid card type"<<endl<<endl;
}
else
{
if(score > 21) fout << "Busted"<<endl<<endl;
else fout<<"Score is "<<score<<endl<<endl;
}
while(1)
{
cout<<"Do you want to continue?(y/n) ";
cin >>opt;
if(opt == 'y' || opt == 'Y') break; //if yes stop asking to continue again
else if(opt == 'n' || opt == 'N') return 0; //if no exit the program
}
}
fin.close();
fout.close();
return 0;
}
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.