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#include <iostream>
#include <stdlib.h>
using namespace std;
//Бикове и крави.
//Число: 1234
//Предположение: 4253 - 2 крави (4 и 3) и 1 бик (2).
bool hasDuplicateDigits(int n) ///1343
{
const int DIGITCOUNT = 10;
bool found[DIGITCOUNT];
for (int i = 0; i < DIGITCOUNT; i++)
found[i] = false;
while (n != 0)
{
int lastDigit = n % 10;
if (found[lastDigit] == true)
return true;
else
found[lastDigit] = true;
n /= 10;
}
return false;
}
void convertNumberToArr(int n, int arr[])
{
for (int i = 3; i >= 0; i--)
{
arr[i] = n % 10;
n /= 10;
}
}
int countBulls(int myNumber[], int compNumber[])
{
int bullsCount = 0;
for (int i = 0; i <= 3; i++)
{
if (myNumber[i] == compNumber[i])
bullsCount++;
}
return bullsCount;
}
int countCows(int myNumber[], int compNumber[])
{
int cowsCount = 0;
for (int i = 0; i <= 3; i++)
{
int myDigit = myNumber[i];
for (int j = 0; j <= 3; j++)
{
if (j == i) // çà äà íå áðîèì áèêîâåòå
continue;
if (myDigit == compNumber[j])
cowsCount++;
}
}
return cowsCount;
}
int main()
{
int numberToGuess;
do
{
numberToGuess = 1000 + rand() % 9000; // [1000..9999]
}
while (hasDuplicateDigits(numberToGuess));
cout << "Computer has picked a number! Try to guess it!" <<endl;
int numberToGuessArr[4];
convertNumberToArr(numberToGuess, numberToGuessArr);
int bullsCount = 0, cowsCount = 0;
do
{
int myNumber;
cin >> myNumber;
int myNumberArr[4];
convertNumberToArr(myNumber, myNumberArr);
bullsCount = countBulls(myNumberArr, numberToGuessArr);
cowsCount = countCows(myNumberArr, numberToGuessArr);
cout << "Bulls: " << bullsCount << " Cows:" << cowsCount << endl;
} while (bullsCount != 4);
cout << "Success!" << endl;
}
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