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fix: Remove function-like macros

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This commit is contained in:
David Leal
2020-10-14 22:13:05 -05:00
parent 7808390bbe
commit 9a27fb7458
1 changed files with 14 additions and 12 deletions
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26
backtracking/n_queens_all_solution_optimised.cpp
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@@ -10,9 +10,6 @@
#include <array>
#include <iostream>
#define inc_loop(var, start, stop) for (int var = start; var <= stop; var++)
#define dec_loop(var, start, stop) for (int var = start; var >= stop; var--)
/**
* @namespace backtracking
* @brief Backtracking algorithms
@@ -31,14 +28,18 @@ namespace n_queens_optimized {
*/
template <size_t n>
void PrintSol(const std::array<std::array<int, n>, n> &board) {
inc_loop(i, 0, n - 1) {
inc_loop(j, 0, n - 1) { std::cout << board[i][j] << " "; }
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
std::cout << board[i][j] << " ";
}
std::cout << std::endl;
}
std::cout << std::endl;
if (n % 2 == 0 || (n % 2 == 1 && board[n / 2 + 1][0] != 1)) {
inc_loop(i, 0, n - 1) {
dec_loop(j, n - 1, 0) { std::cout << board[i][j] << " "; }
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
std::cout << board[j][i] << " ";
}
std::cout << std::endl;
}
std::cout << std::endl;
@@ -58,7 +59,7 @@ template <size_t n>
bool CanIMove(const std::array<std::array<int, n>, n> &board, int row,
int col) {
/// check in the row
inc_loop(i, 0, col - 1) {
for (int i = 0; i <= col; i++) {
if (board[row][i] == 1) {
return false;
}
@@ -90,7 +91,7 @@ void NQueenSol(std::array<std::array<int, n>, n> board, int col) {
PrintSol<n>(board);
return;
}
inc_loop(i, 0, n - 1) {
for (int i = 0; i < n; i++) {
if (CanIMove<n>(board, i, col)) {
board[i][col] = 1;
NQueenSol<n>(board, col + 1);
@@ -102,14 +103,15 @@ void NQueenSol(std::array<std::array<int, n>, n> board, int col) {
} // namespace backtracking
/**
* Main function
* @brief Main function
* @returns 0 on exit
*/
int main() {
const int n = 4;
std::array<std::array<int, n>, n> board{};
if (n % 2 == 0) {
inc_loop(i, 0, n / 2 - 1) {
for (int i = 0; i <= n / 2 - 1; i++) { // 😎
if (backtracking::n_queens_optimized::CanIMove(board, i, 0)) {
board[i][0] = 1;
backtracking::n_queens_optimized::NQueenSol(board, 1);
@@ -117,7 +119,7 @@ int main() {
}
}
} else {
inc_loop(i, 0, n / 2) {
for (int i = 0; i <= n / 2; i++) { // 😏
if (backtracking::n_queens_optimized::CanIMove(board, i, 0)) {
board[i][0] = 1;
backtracking::n_queens_optimized::NQueenSol(board, 1);