chance assignment of random

Hi, I need to be pointed towards the correct way to express,
a greater percent chance of something happending.
For example:

a and b are playing cards and a has a 60% chance of winning.
and the wins are generated by rand.(got that part) it's just
the percentages
Thanks
Michele

Code:

#include<iostream>
#include<cstdlib>
#include<ctime>
#include<iomanip>
#include<iostream>
#include<fstream> 
using namespace std;


//function prototype
int pp (int&);
int score = 0;

void main()
{

ofstream outfile("A:\\0F1017_6_2.txt"); 
if(!outfile){ 
cerr << "Cannot open output file" << endl; 

} 

srand((unsigned) time(0));
int a = 0(.56);
int b = 0(.44);
int aa = 0;
int bb = 0; 
............................
//my function is:
	int pp (int &score)           	//function pp
			{score = ( rand() % 2); 
			return score;}

i thought that by assigning them to the initialization of the int of each it would work, but i cannot tell if it is...is it?
should i be expressing the chances in the random expression of the function?
thanks Michele/scuba22

Integers are integers, so you can't store decimal numbers in them (like 0.44).
Use a range from 0-100 instead.

so
something like:

Code:

int a = 0(1-56);
int b = 0(57-100);

???

I have no idea what 0(12345) does.

This calculates a random percentage in the range 1-100, and checks if Player1 or Player2 wins.

Code:

int GetPercent()
{
   return ((rand() % 100) + 1);
}

int main()
{
   srand(time(NULL));
   int Result = GetPercent();

   if(Result <= 56)
   {
      cout << "Player 1 wins!" << endl;
   }
   else
   {
      cout << "Player 2 wins!" << endl;
   }

   return 0;
}

PS: Notice the int main()

<edit>
Are you aware that you include unneccessary headers, and one is included twice?
</edit>

hi, i didn't realize iostream was in there twice...i'm not sure what isn't necessary though?

#include<iostream> is this the unecessary?
#include<cstdlib> needed for rand fx
#include<ctime> for my time seed
#include<iomanip> for my setw()
#include<fstream> and for my outfile.....(that's my ultimate goal to print to a file)
____________________________
i don't understand your explanation...
what i need to do is write a program for 3 "games" to be won at a score of 11.
Player A has a 56% chance of winning, player B has a 44% chance.
here is the entire thing..maybe you can point to how i can encorporate your method into my loops or function.
Sorry if I am dense, I am 6 weeks into C++ :-D.
Thx
Michele

Code:

//Michele DAddio CS210
//10_17_02::HW #6 : RANDOM

#include<iostream>
#include<cstdlib>
#include<ctime>
#include<iomanip>
#include<fstream> 
using namespace std;


		//function prototype
			int pp (int&);
			

		int main()
		{

			ofstream outfile("A:\\0F1017_6_2.txt"); 
			if(!outfile){ 
				cerr << "Cannot open output file" << endl; 
			  
		} 
	
			srand((unsigned) time(0));
			int a = 0(1-56);
			int b = 0(57-100);
			int aa = 0;
			int bb = 0;
			int score = 0;
		
		for (int pg=0; pg < 3;pg++){

			outfile << "\t\t\n Game " << pg +1 << endl;

		bool zz = true;	
		if (zz == true){
		outfile << setw(11) << "\n\tAda" << setw(16) << "Blaise" << endl;
		bool zz = false;}


		for ( int c = 0; c <= 22; c++) {
			
			score = pp(score);
			if (score == 1){
				outfile << setw (20) << a+1 <<setw(15)<< "0" << endl;
				a++;
				aa++;}
			else {
				outfile << setw (20)<< "0"<< setw(15) << b+1 << endl;
				b++;
				bb++;}


			if (a == 11){
				outfile << setw(10) << "\tAda won 11 to " << b << endl;
			a = 0;
			b = 0;
			break;}
			else if (b == 11){
				outfile << setw(10) << "\tBlaise won 11 to " << a << endl;
			a = 0;
			b = 0;
			break;}
				
			}
		}
				
			outfile <<"\t\t\n";
			if ( aa > bb ){
				outfile << "Ada is the overall winner\n";}
			else {outfile << "Blaise is the overall winner\n";}

			return 0;

	}

			int pp (int &score)           	//function pp
			{score = ( rand() % 2); 
			return score;}

&#91;code]&#91;/code]tagged by Salem