我在尝试编写数独求解器时遇到此问题(某些部分引用http://norvig.com/sudoku.html)
以下是我到目前为止参考上述网址所做的代码。
puzzle = '003198070890370600007004893030087009079000380508039040726940508905800000380756900'
cell = '123456789'
cell_break = ['123','456','789']
def generate_keys(A, B):
"Cross product of elements in A and elements in B."
return [a+b for a in A for b in B]
#print generate_keys(cell,cell)
def dict_puzzle(puzzle,cell):
'Making a dictionary to store the key and values of the puzzle'
trans_puzzle = {}
key_list = generate_keys(cell,cell)
i=0
for x in puzzle:
trans_puzzle[str(key_list[i])] = x
i = i + 1
return trans_puzzle
dict_puzzle(puzzle,cell)['11'] = 'die'
print dict_puzzle(puzzle,cell)['11']
对于代码的最后两行,我试图改变字典,但无济于事。它只返回0,这是原始值。 (即突变不成功)
我不确定为什么会这样:(
答案 0 :(得分:1)
您再次调用该函数,因此它返回一个新字典。您需要将第一次调用的结果分配给变量并改变它。
public class Instrument {
@JsonProperty("one")
private String myPropOne;
@JsonProperty("two")
private String myPropTwo;
@JsonProperty("three")
private String myPropThree;
}