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In a previous exercise you wrote code to implement a best of n match for Rock, Paper, Scissors.

Now take that code and extract a function <tt>int rps()</tt> that simulates a SINGLE game and returns:
<ul><li>1 if Player 1 wins
<li>2 if Player 2 wins
<li>0 if it is a tie
</ul>

Also update the code to make a best-of-n match where <tt>n</tt> is an odd number entered by the user at the start of the program.
Your program should output the result of each game in the format:
<tt>Game {1,2,3} Winner = P1</tt> ...or...
<tt>Game {1,2,3} Winner = P2</tt> ...or...
<tt>Game {1,2,3} Tie</tt>

As soon as a winner of the best-of-n match can be determined, quit the program and output:
<tt>P1 wins match</tt> ...or...
<tt>P2 wins match</tt> ...or...
<tt>No winner</tt> (if there is a tie)


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Copied from problem cpp/for/rps-bestof3 (author: redekopp@usc.edu)
Copied from problem cpp/conditionals/rps (author: redekopp@usc.edu)
Copied from problem cpp/conditionals/taxbrackets (author: redekopp@usc.edu)
Copied from problem cpp/conditionals/nestedec (author: redekopp@usc.edu)
Copied from problem cpp/conditionals/extracredit (author: redekopp@usc.edu)
Copied from problem cpp/control/flag (author: daveagp@gmail.com)

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Choices
json list of string, bool pairs
e.g. [["good", true], ["bad", false]]

Correct answer
Template / Reference solution

Template / Reference solution

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

int rps()
{
int winner = 0;
\[
cout << "Enter the choices of the 2 players: " << endl;
int choice1, choice2;
cin >> choice1 >> choice2;

if( choice1 == choice2){
winner = 0;
}
else if( ((choice1 == 0) && (choice2 == 2)) ||
((choice1 == 1) && (choice2 == 0)) ||
((choice1 == 2) && (choice2 == 1)) )
{
winner = 1;
}
else
{
winner = 2;
}
]\
return winner;
}

int main() {
int p1 = 0, p2 = 0;
int n;
cin >> n; // get n for best-of-n match
\[
for(int i = 1; i <= n; i++)
{
int winner = rps();
if(winner == 1){
cout << "Game " << i << " winner = P1" << endl;
p1++;
}
else if(winner == 2){
cout << "Game " < p2 ) {
cout << "P1 wins match" << endl;
}
else if(p1 < p2){
cout << "P2 wins match" << endl;
}
else {
cout << "No winner" << endl;
}

\show:
for(int i = 1; i <= 3; i++)
{
cout << "Enter the choices of the 2 players: " << endl;
int choice1, choice2;
cin >> choice1 >> choice2;

if( choice1 == choice2){
cout << "Game " << i << " Tie" << endl;
}
else if( ((choice1 == 0) && (choice2 == 2)) ||
((choice1 == 1) && (choice2 == 0)) ||
((choice1 == 2) && (choice2 == 1)) )
{
cout << "Game " < p2 ) {
cout << "P1 wins match" << endl;
}
else if(p1 < p2){
cout << "P2 wins match" << endl;
}
else {
cout << "No winner" << endl;
}
]\
return 0;
}

Java test suite
See manual

C++ test suite
json list of stdin/args tests
e.g. [{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]
to just run once with no input use [{}]

[
{"stdin": "3 0 1 0 2 1 2", "args": ""},
{"stdin": "3 0 2 0 2 1 2", "args": ""},
{"stdin": "3 2 0 2 0 2 1", "args": ""},
{"stdin": "7 0 1 0 1 0 1 0 1 1 0 1 0 1 0", "args": ""},
{"stdin": "5 2 0 0 2 2 2 2 0 0 2", "args": ""}
]

C++ test suite
See manual

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Property	Value
Description html markup shown to student	<p>In a previous exercise you wrote code to implement a best of n match for <strong>Rock, Paper, Scissors</strong>.</p> <p>Now take that code and extract a function <tt>int rps()</tt> that simulates a <strong>SINGLE</strong> game and returns:</p> <ul><li>1 if Player 1 wins <li>2 if Player 2 wins <li>0 if it is a tie </ul> <p>Also update the code to make a <strong>best-of-n</strong> match where <tt>n</tt> is an odd number entered by the user at the start of the program.</p> <p>Your program should output the result of each game in the format:</p> <p><tt>Game {1,2,3} Winner = P1</tt> ...or... <tt>Game {1,2,3} Winner = P2</tt> ...or... <tt>Game {1,2,3} Tie</tt> </p> <p>As soon as a winner of the best-of-n match can be determined, quit the program and output:</p> <p><tt>P1 wins match</tt> ...or... <tt>P2 wins match</tt> ...or... <tt>No winner</tt> (if there is a tie) </p>
Epilogue html markup shown when solved	remove
Public permissions	remove
Remarks Comments, history, license, etc.	Copied from problem cpp/for/rps-bestof3 (author: redekopp@usc.edu) Copied from problem cpp/conditionals/rps (author: redekopp@usc.edu) Copied from problem cpp/conditionals/taxbrackets (author: redekopp@usc.edu) Copied from problem cpp/conditionals/nestedec (author: redekopp@usc.edu) Copied from problem cpp/conditionals/extracredit (author: redekopp@usc.edu) Copied from problem cpp/control/flag (author: daveagp@gmail.com) remove
Engine
Choices json list of string, bool pairs e.g. `[["good", true], ["bad", false]]`
Correct answer
Template / Reference solution
Template / Reference solution	#include <iostream> #include <iomanip> using namespace std; int rps() { int winner = 0; \[ cout << "Enter the choices of the 2 players: " << endl; int choice1, choice2; cin >> choice1 >> choice2; if( choice1 == choice2){ winner = 0; } else if( ((choice1 == 0) && (choice2 == 2)) \|\| ((choice1 == 1) && (choice2 == 0)) \|\| ((choice1 == 2) && (choice2 == 1)) ) { winner = 1; } else { winner = 2; } ]\ return winner; } int main() { int p1 = 0, p2 = 0; int n; cin >> n; // get n for best-of-n match \[ for(int i = 1; i <= n; i++) { int winner = rps(); if(winner == 1){ cout << "Game " << i << " winner = P1" << endl; p1++; } else if(winner == 2){ cout << "Game " << i << " winner = P2" << endl; p2++; } else { cout << "Game " << i << " Tie" << endl; } if(p1 == (n+1)/2 \|\| p2 == (n+1)/2){ break; } } if( p1 > p2 ) { cout << "P1 wins match" << endl; } else if(p1 < p2){ cout << "P2 wins match" << endl; } else { cout << "No winner" << endl; } \show: for(int i = 1; i <= 3; i++) { cout << "Enter the choices of the 2 players: " << endl; int choice1, choice2; cin >> choice1 >> choice2; if( choice1 == choice2){ cout << "Game " << i << " Tie" << endl; } else if( ((choice1 == 0) && (choice2 == 2)) \|\| ((choice1 == 1) && (choice2 == 0)) \|\| ((choice1 == 2) && (choice2 == 1)) ) { cout << "Game " << i << " winner = P1" << endl; p1++; } else { cout << "Game " << i << " winner = P2" << endl; p2++; } if(p1 == 2 \|\| p2 == 2){ break; } } if( p1 > p2 ) { cout << "P1 wins match" << endl; } else if(p1 < p2){ cout << "P2 wins match" << endl; } else { cout << "No winner" << endl; } ]\ return 0; }
Java test suite See manual
C++ test suite json list of stdin/args tests e.g. `[{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]` to just run once with no input use `[{}]`	[ {"stdin": "3 0 1 0 2 1 2", "args": ""}, {"stdin": "3 0 2 0 2 1 2", "args": ""}, {"stdin": "3 2 0 2 0 2 1", "args": ""}, {"stdin": "7 0 1 0 1 0 1 0 1 1 0 1 0 1 0", "args": ""}, {"stdin": "5 2 0 0 2 2 2 2 0 0 2", "args": ""} ]
C++ test suite See manual
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Java imports json list of importables e.g. `["java.util.*"]`	remove
Override Java classname else defaults to websheet name	remove
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Is example? i.e., just a demo	remove
Add compiler flag(s) json list of flags e.g. `["-Wno-unused-variable"]`	remove
Remove default compiler flag(s) json list of flags see default_cppflags e.g. `["-Wno-write-strings"]`	remove

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