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8 queens C++
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#include <conio.h> | |
#include <iostream> | |
using namespace std; | |
int z = 0; // кількість варіантів розміщення | |
char check(int A[], int n) | |
{ | |
int i, j; | |
for (i = 0; i < n; i++) | |
{ | |
for (j = 0; j < n; j++) | |
{ | |
if (A[i] == A[j] && i != j && A[i] != 0) | |
return 0; | |
if (A[i] + i == A[j] + j && i != j && A[i] != 0 && A[j] != 0) | |
return 0; | |
if (A[i] - i == A[j] - j && i != j && A[i] != 0 && A[j] != 0) | |
return 0; | |
} | |
} | |
return 1; | |
} | |
void print_field(int A[], int n) | |
{ | |
int i, j; | |
for (i = 0; i < n; i++) | |
{ | |
cout << "-"; | |
for (j = 0; j < n; j++) | |
cout << "--"; | |
cout << endl; | |
for (j = 1; j < A[i]; j++) | |
cout << "| "; | |
cout << "|F"; | |
for (j = A[i]; j < n; j++) | |
cout << "| "; | |
cout << "|\n"; | |
} | |
for (j = 0; j < n; j++) | |
cout << "--"; | |
cout << "-\n\n"; | |
z++; | |
} | |
void build(int A[], const int n) | |
{ | |
int i, k; | |
for (k = 0; A[k] != 0 && k < n; k++); | |
if (k >= n) | |
{ | |
print_field(A, n); | |
return; | |
} | |
int* B = new int[n]; | |
for (i = 0; i < k; i++) | |
B[i] = A[i]; | |
for (i = k; i < n; i++) | |
B[i] = 0; | |
for (i = 1; i <= n; i++) | |
{ | |
B[k] = i; | |
if (check(B, n)) | |
build(B, n); | |
} | |
delete[] B; | |
} | |
int main() | |
{ | |
setlocale(0, "UKR"); | |
system("title Queens"); | |
const int n = 8; | |
int A[n]; | |
for (int i = 0; i < n; i++) | |
A[i] = 0; | |
cout << "Розташування:\n"; | |
build(A, n); | |
cout << "Всього варіантів: " << z << "\n\n"; | |
} |
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