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#include <iostream>
#include <iomanip>
#include <ctime>
#include <cstdlib>
#include <thread>
using namespace std;
const int length{ 9 };
void showthesudoku(int array[][length]);
int theinterface(char move);
int randomnumber();
int randomrow();
int randomcol();
void thanksforplaying();
int thegame();
int humaninput(int array[][length]);
int machineinput(int array[][length]);
int doesitfit(int array[][length]);
int calculations(int array[][length]);
struct astruct
{
int precious[length][length]{ 0 };
int row{ 0 };
int col{ 0 };
int number{0};
int dummy[length][length]{ 0 };
char move;
int additionrow{ 0 };
int additioncol{ 0 };
int addition3x3box{ 0 };
}sud;
int main()
{
theinterface(sud.move);
thanksforplaying();
return 0;
}
int theinterface(char move)
{
sud.move = 'a';
while (true)
{
cout << "press q to quit, or p to play\n";
cin >> sud.move;
if (sud.move == 'q')
{
cout << "i spend days making this, #@#??@#\n";
break;
}
else if (sud.move != 'p' && sud.move != 'q')
{
cout << "use the keyboard, ok? Stump your foot once for yes and two for no\n";
}
else if (sud.move == 'p')
{
cout << "thank you and enjoy\n";
thegame();
break;
}
}
return 0;
}
int thegame()
{
sud.row = 0; //i put these here so they reset every time to 0
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
sud.move = 'a';// i put this so it has not a q value from the previous menu.
while (1)
{
cout << "press c to choose numbers or m for the machine to do it for you or q to quit\n";
cin >> sud.move;
if (sud.move == 'c')
{
humaninput(sud.precious);
doesitfit(sud.precious);
if (sud.number != 0)
{
sud.precious[sud.row][sud.col] = sud.number;
}
showthesudoku(sud.precious);
}
else if (sud.move == 'm')
{
machineinput(sud.precious);
doesitfit(sud.precious);
if (sud.number != 0)
{
sud.precious[sud.row][sud.col] = sud.number;
}
showthesudoku(sud.precious);
}
else if (sud.move == 'q')
{
break;
}
}
return 0;
}
int doesitfit(int array[][length])
{ //spent about a lot of hours here, for this thing
//checks every row for the same number
for (int j = 0, i = sud.row; j < length; j++)
{ //|not needed| | this one | excludes the number we choose
if (((sud.number == sud.precious[i][j]) && ((sud.row == i && sud.col != j) && sud.precious[i][j] != 0)))
{
cout << "not possible, you already have one in the same line\n";
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
break;// not needed
}
}
//checks every column for the same number
for (int i = 0, j = sud.col; i < length; i++)
{
if (((sud.number == sud.precious[i][j]) && ((sud.row != i && sud.col == j) && sud.precious[i][j] != 0)))
{
cout << "not possible, you have one in the same column\n";
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
break;
}
}
//this one i hate. try to exclude the same number in a 3x3 box spend 6 or more hours here. stop laughing
int resizedrow = (sud.row / 3) * 3;
int resizedcolumn = (sud.col / 3) * 3;
for (int i = resizedrow; i < (resizedrow + 3); i++)
{
for (int j = resizedcolumn; j < (resizedcolumn + 3); j++)
{
//Always checks for 4 boxes. the diagonal positions if you choose middle box.A 2x2 if you choose corner box and so on
if (((sud.number == sud.precious[i][j]) && ((sud.row != i && sud.col != j) && sud.precious[i][j] != 0)))
{
cout << "you cant, i wish you could\n";
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
i = 10;
break;
}
}
}
calculations(sud.precious);
if (sud.additionrow > 45)
{
cout << "you exceed the max sum allowed in this row\n";
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
}
else if (sud.additioncol > 45)
{
cout << "you exceed the max sum allowed in this column\n";
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
}
else if (sud.addition3x3box > 45)
{
cout << "you exceed the max sum allowed in this box\n";
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.dummy[sud.row][sud.col] = 0;
}
//absolutely worth it
return 0;
}
int calculations(int array[][length])
{
sud.additionrow = 0;//calculates the sum of all the numbers in the row the user chose, from his row input
for (int i = sud.row, j = 0; j < length; j++)
{
sud.additionrow += sud.precious[i][j];
}
sud.additionrow+=sud.dummy[sud.row][sud.col];
sud.additioncol = 0;//calculates the sum of all the numbers in the column the user chose, from his column selection
for (int i = 0, j = sud.col; i < length; i++)
{
sud.additioncol += sud.precious[i][j];
}
sud.additioncol += sud.dummy[sud.row][sud.col];
sud.addition3x3box = 0;//calculates the sum of all the numbers in a 3x3square with magic. learned that here, ty.
int resizedrow = (sud.row / 3) * 3; //3 possible outcomes each to get the 3x3box.(0,3,6)^2=1 to 9 possible 3x3box
int resizedcolumn = (sud.col / 3) * 3;// i know what it does.I don't know what are the principles behind it.
//anyway it is still amazing!!
for (int i = resizedrow; i < (resizedrow + 3); i++)
{
for (int j = resizedcolumn; j < (resizedcolumn + 3); j++)
{
sud.addition3x3box += sud.precious[i][j];
}
}
sud.addition3x3box += sud.dummy[sud.row][sud.col];
return 0;
}
int humaninput(int array[][length])
{
while (true)
{
cout << "enter row, column and your number\n";
cin >> sud.row >> sud.col >> sud.number;//if i put a letter all hell breaks loose
if (sud.row < 0 || sud.row >= length)
{
cout << "out of bounds row\n";
}
else if (sud.col < 0 || sud.col >= length)
{
cout << "out of bounds column\n";
}
else if (sud.number < 0 || sud.number > length)
{
cout << "out of bounds number\n";
}
else if (sud.precious[sud.row][sud.col] != 0)
{
cout << "already assigned\n";
}
else break;
}
sud.dummy[sud.row][sud.col] = sud.number;
return 0;// i was trying to return sud.dummy[][]. Wrongly thought it's out of scope and gone when i exit but struct are good
}
int machineinput(int array[][length])
{
while (1)
{
sud.row = 0;
sud.col = 0;
sud.number = 0;
sud.row = randomrow();
sud.col = randomcol();
sud.number = randomnumber();
//just copy paste from human input
if (sud.row < 0 || sud.row >= length)
{
cout << "out of bounds row\n";
}
else if (sud.col < 0 || sud.col >= length)
{
cout << "out of bounds column\n";
}
else if (sud.number < 0 || sud.number > length)
{
cout << "out of bounds number\n";
}
else if (sud.precious[sud.row][sud.col] != 0)
{
cout << "already assigned\n";
}
else break;
}
sud.dummy[sud.row][sud.col] = sud.number;
return 0;
}
//it prints diagonal and in succession numbers. Dont understand it
int randomnumber()//the numbers follow a pattern unfortunately, i thought the delay will fix it
{
unsigned int k = 0;
this_thread::sleep_for(967ms);//maybe this number will help
srand((unsigned)time(NULL)); //no idea how it works i will study it further
k = (rand() % 9) + 1;
cout << k<<"\n";
return k;
}
int randomrow()
{
unsigned int l = 0;
this_thread::sleep_for(573ms);//dont really understand it. Stole it from a onelonecoder video
srand((unsigned)time(NULL));
l = rand() % 9;
cout << l;
return l;
}
int randomcol()
{
unsigned int m = 0;
this_thread::sleep_for(666ms);//curse you satan, not even you will help me
srand((unsigned)time(NULL));
m = rand() % 9 ;
cout << m;
return m;
}
void showthesudoku(int array[][length])
{
for (int i = 0; i < length; i++)
{
for (int j = 0; j < length; j++)
{
cout << setw(3)<<array[i][j];
}cout <<"\n";
}
}
void thanksforplaying()
{
cout << "thanks for playing";
}
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