【题解】
就一傻逼模拟题【代码】
class Solution { public: bool isValidSudoku(vector<vector<char>>& board) { bool bo[10]; for (int i = 0;i < 9;i++){ memset(bo,0,sizeof(bo)); for (int j = 0;j < 9;j++){ if (board[i][j]!=\'.\'){ if (bo[board[i][j]-\'0\']) return false; bo[board[i][j]-\'0\'] = 1; } } } for (int j = 0;j < 9;j++){ memset(bo,0,sizeof(bo)); for (int i = 0;i < 9;i++){ if (board[i][j]!=\'.\'){ if (bo[board[i][j]-\'0\']) return false; bo[board[i][j]-\'0\'] = true; } } } for (int x0 = 0;x0<9;x0+=3) for (int y0 = 0;y0<9;y0+=3){ memset(bo,0,sizeof(bo)); for (int i = 0;i < 3;i++) for (int j = 0;j < 3;j++) { if (board[x0+i][y0+j]!=\'.\'){ if (bo[board[x0+i][y0+j]-\'0\']) return false; bo[board[x0+i][y0+j]-\'0\'] = true; } } } return true; } };