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发表于 2020-10-6 15:29:24
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'''在以下这个 20×20 的网格中,四个处于同一对角线上的相邻数字用红色标了出来:
08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00
81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65
52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91
22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80
24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50
32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70
67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21
24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72
21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95
78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92
16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57
86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58
19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40
04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66
88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69
04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36
20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16
20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54
01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48
这四个数字的乘积是:26 × 63 × 78 × 14 = 1788696。
在这个 20×20 网格中,处于任何方向上(上,下,左,右或者对角线)的四个相邻数字的乘积的最大值是多少?'''
square = "08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08 \n"\
"49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00 \n"\
"81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65 \n"\
"52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91 \n"\
"22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80 \n"\
"24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50 \n"\
"32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70 \n"\
"67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21 \n"\
"24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72 \n"\
"21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95 \n"\
"78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92 \n"\
"16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57 \n"\
"86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58 \n"\
"19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40 \n"\
"04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66 \n"\
"88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69 \n"\
"04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36 \n"\
"20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16 \n"\
"20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54 \n"\
"01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48 "
def findmax():
# 创建矩阵
numsquare = [[8, 2, 22, 97, 38, 15, 0, 40, 0, 75, 4, 5, 7, 78, 52, 12, 50, 77, 91, 8],
[49, 49, 99, 40, 17, 81, 18, 57, 60, 87, 17, 40, 98, 43, 69, 48, 4, 56, 62, 0],
[81, 49, 31, 73, 55, 79, 14, 29, 93, 71, 40, 67, 53, 88, 30, 3, 49, 13, 36, 65],
[52, 70, 95, 23, 4, 60, 11, 42, 69, 24, 68, 56, 1, 32, 56, 71, 37, 2, 36, 91],
[22, 31, 16, 71, 51, 67, 63, 89, 41, 92, 36, 54, 22, 40, 40, 28, 66, 33, 13, 80],
[24, 47, 32, 60, 99, 3, 45, 2, 44, 75, 33, 53, 78, 36, 84, 20, 35, 17, 12, 50],
[32, 98, 81, 28, 64, 23, 67, 10, 26, 38, 40, 67, 59, 54, 70, 66, 18, 38, 64, 70],
[67, 26, 20, 68, 2, 62, 12, 20, 95, 63, 94, 39, 63, 8, 40, 91, 66, 49, 94, 21],
[24, 55, 58, 5, 66, 73, 99, 26, 97, 17, 78, 78, 96, 83, 14, 88, 34, 89, 63, 72],
[21, 36, 23, 9, 75, 0, 76, 44, 20, 45, 35, 14, 0, 61, 33, 97, 34, 31, 33, 95],
[78, 17, 53, 28, 22, 75, 31, 67, 15, 94, 3, 80, 4, 62, 16, 14, 9, 53, 56, 92],
[16, 39, 5, 42, 96, 35, 31, 47, 55, 58, 88, 24, 0, 17, 54, 24, 36, 29, 85, 57],
[86, 56, 0, 48, 35, 71, 89, 7, 5, 44, 44, 37, 44, 60, 21, 58, 51, 54, 17, 58],
[19, 80, 81, 68, 5, 94, 47, 69, 28, 73, 92, 13, 86, 52, 17, 77, 4, 89, 55, 40],
[4, 52, 8, 83, 97, 35, 99, 16, 7, 97, 57, 32, 16, 26, 26, 79, 33, 27, 98, 66],
[88, 36, 68, 87, 57, 62, 20, 72, 3, 46, 33, 67, 46, 55, 12, 32, 63, 93, 53, 69],
[4, 42, 16, 73, 38, 25, 39, 11, 24, 94, 72, 18, 8, 46, 29, 32, 40, 62, 76, 36],
[20, 69, 36, 41, 72, 30, 23, 88, 34, 62, 99, 69, 82, 67, 59, 85, 74, 4, 36, 16],
[20, 73, 35, 29, 78, 31, 90, 1, 74, 31, 49, 71, 48, 86, 81, 16, 23, 57, 5, 54],
[1, 70, 54, 71, 83, 51, 54, 69, 16, 92, 33, 48, 61, 43, 52, 1, 89, 19, 67, 48]]
global temp
temp = 0
product = 0
numbers = []
location = []
#横向对比
for line in range (20):
for horitem in range(17):
product = numsquare[line][horitem]*\
numsquare[line][horitem+1]*\
numsquare[line][horitem+2]*\
numsquare[line][horitem+3]
if product > temp:
temp = product
numbers = [numsquare[line][horitem],
numsquare[line][horitem+1],
numsquare[line][horitem+2],
numsquare[line][horitem+3]]
location = [[line,horitem+1],
[line,horitem+2],
[line,horitem+3],
[line,horitem+4]]
#纵向对比
for line in range (20):
for vertitem in range(17):
product = numsquare[vertitem][line]*\
numsquare[vertitem+1][line]*\
numsquare[vertitem+2][line]*\
numsquare[vertitem+3][line]
if product > temp:
temp = product
numbers = [numsquare[vertitem][line],
numsquare[vertitem+1][line],
numsquare[vertitem+2][line],
numsquare[vertitem+3][line]]
location = [[vertitem+1,line+1],
[vertitem+2,line+1],
[vertitem+3,line+1],
[vertitem+4,line+1]]
#右斜对比
for horiline in range (17):
for vertiline in range(17):
product = numsquare[horiline][vertiline]*\
numsquare[horiline+1][vertiline+1]*\
numsquare[horiline+2][vertiline+2]*\
numsquare[horiline+3][vertiline+3]
if product > temp:
temp = product
number = [numsquare[horiline][vertiline],
numsquare[horiline+1][vertiline+1],
numsquare[horiline+2][vertiline+2],
numsquare[horiline+3][vertiline+3]]
location = [[horiline+1,vertiline+1],
[horiline+2,vertiline+2],
[horiline+3,vertiline+3],
[horiline+4,vertiline+4]]
#左斜对比
for rehoriline in range(17):
for revertiline in range(19,2,-1):
product = numsquare[rehoriline][revertiline]*\
numsquare[rehoriline+1][revertiline-1]*\
numsquare[rehoriline+2][revertiline-2]*\
numsquare[rehoriline+3][revertiline-3]
if product > temp:
temp = product
numbers = [numsquare[rehoriline][revertiline],
numsquare[rehoriline+1][revertiline-1],
numsquare[rehoriline+2][revertiline-2],
numsquare[rehoriline+3][revertiline-3]]
location = [[rehoriline+1,revertiline+1],
[rehoriline,revertiline],
[rehoriline-1,revertiline-1],
[rehoriline-2,revertiline-2]]
print("在该矩阵中连续四个数字的乘积最大为:%d" %temp)
print("这四个数字是:%d,%d,%d,%d" %(numbers[0],numbers[1],numbers[2],numbers[3]))
print("这四个数字的位置在:" + str(location))
start_findmax = time.time()
findmax()
time_findmax = time.time() - start_findmax
print("%f秒" %time_findmax)
在该矩阵中连续四个数字的乘积最大为:70600674
这四个数字是:89,94,97,87
这四个数字的位置在:[[13, 7], [12, 6], [11, 5], [10, 4]]
0.000473秒
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