回答編集履歴
3
追記
test
CHANGED
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@@ -129,3 +129,49 @@
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129
129
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.ToArray();
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130
130
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131
131
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```
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132
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+
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133
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+
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134
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+
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135
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+
# 追記
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136
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+
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137
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+
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138
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+
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139
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+
多次元配列の別解
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140
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+
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141
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+
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142
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+
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143
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+
```C#
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144
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+
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145
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+
var cells = new int[,]
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146
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+
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147
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+
{
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148
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+
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149
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+
{ 0, 0, 0 },
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150
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+
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151
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{ 0, 0, 0 },
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152
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+
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153
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+
{ 1, 1, 0 },
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154
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+
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155
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+
{ 0, 0, 0 },
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156
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+
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157
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+
{ 1, 1, 1 },
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158
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+
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159
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+
};
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160
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+
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161
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+
var comparison = new int[] { 0, 0, 0 };
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162
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+
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163
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+
int[] indexarr = Enumerable
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164
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+
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165
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+
.Range(0, cells.GetLength(0))
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166
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+
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167
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+
.Where(index => Enumerable
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168
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+
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169
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+
.Range(0, cells.GetLength(1))
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170
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+
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171
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.Select(a => cells[index, a])
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172
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+
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173
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.SequenceEqual(comparison))
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174
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+
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175
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.ToArray();
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176
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+
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177
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```
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2
追記
test
CHANGED
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@@ -83,3 +83,49 @@
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83
83
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.ToArray();
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84
84
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85
85
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```
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86
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+
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87
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+
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88
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+
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89
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+
# 追記
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90
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+
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91
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+
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92
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+
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93
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+
多次元配列の別解
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94
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+
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95
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+
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96
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+
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97
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+
```C#
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98
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+
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99
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+
var cells = new int[,]
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100
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+
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101
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{
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102
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+
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103
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{ 0, 0, 0 },
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104
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+
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105
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{ 0, 0, 0 },
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106
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+
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107
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{ 1, 1, 0 },
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108
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+
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109
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{ 0, 0, 0 },
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110
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+
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111
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{ 1, 1, 1 },
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112
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+
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113
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};
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114
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+
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115
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+
var comparison = new int[] { 0, 0, 0 };
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116
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+
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117
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+
int[] indexarr = cells
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118
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+
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119
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+
.Cast<int>()
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120
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+
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121
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.Select((value, index) => new { value, index })
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122
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+
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123
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+
.GroupBy(a => a.index / cells.GetLength(1), a => a.value)
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124
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+
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125
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+
.Where(a => a.SequenceEqual(comparison))
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126
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+
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127
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+
.Select(a => a.Key)
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128
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+
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129
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+
.ToArray();
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130
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+
|
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131
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+
```
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1
追記
test
CHANGED
|
@@ -43,3 +43,43 @@
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43
43
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.ToArray();
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44
44
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45
45
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```
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|
46
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+
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47
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+
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48
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+
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49
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+
# 追記
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|
50
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+
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51
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+
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52
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+
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53
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+
ジャグ配列を使った場合
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|
54
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+
|
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55
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+
|
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56
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+
|
|
57
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+
```C#
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|
58
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+
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59
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+
var cells = new int[][]
|
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60
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+
|
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61
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+
{
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62
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+
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63
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+
new[] { 0, 0, 0 },
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64
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+
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65
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+
new[] { 0, 0, 0 },
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66
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+
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67
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+
new[] { 1, 1, 0 },
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68
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+
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69
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+
new[] { 0, 0, 0 },
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70
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+
|
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71
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+
new[] { 1, 1, 1 },
|
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72
|
+
|
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73
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+
};
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74
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+
|
|
75
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+
var comparison = new int[] { 0, 0, 0 };
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76
|
+
|
|
77
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+
int[] indexarr = cells
|
|
78
|
+
|
|
79
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+
.Select((a, i) => a.SequenceEqual(comparison) ? i : -1)
|
|
80
|
+
|
|
81
|
+
.Where(a => a != -1)
|
|
82
|
+
|
|
83
|
+
.ToArray();
|
|
84
|
+
|
|
85
|
+
```
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