//五子棋#include<graphics.h>#define board_size 20
#define pixel 600
int pr pixel / board_size;
char board_data[board_size][board_size];
char current_piece o;
int count 0;//检测指定玩家是否获胜
bool CheckWin(char c)
{int i, j;//检查行for (i 0; i &…
高斯消元能在 O ( n 3 ) O(n^3) O(n3)的时间复杂度内求解n个方程,n个未知数的多元线性方程组,即 a 11 x 1 a 12 x 2 a 13 x 3 ⋯ a 1 n x n b 1 a 21 x 1 a 22 x 2 a 23 x 3 ⋯ a 2 n x n b 2 … a n 1 x 1 a n 2 x 2 a n 3 x 3 ⋯ a n n…