回答編集履歴
3
d
test
CHANGED
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@@ -88,17 +88,15 @@
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88
88
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89
89
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{
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90
90
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91
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-
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92
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-
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93
91
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for (size_t i = 0; i < mat.size(); ++i) {
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94
92
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95
93
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for (size_t j = 0; j < mat[0].size(); ++j) {
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96
94
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97
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-
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95
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+
std::cout << mat[i][j] << " ";
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98
96
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99
97
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}
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100
98
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101
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-
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99
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+
std::cout << std::endl;
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102
100
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103
101
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}
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104
102
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@@ -130,6 +128,4 @@
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130
128
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131
129
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}
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132
130
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133
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-
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134
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-
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135
131
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```
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2
d
test
CHANGED
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@@ -61,3 +61,75 @@
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61
61
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62
62
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63
63
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```
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64
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+
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65
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+
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66
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+
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67
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+
## vector で書き直した例
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68
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+
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69
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+
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70
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+
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71
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+
C++ なら C の配列でなく、std::vector を使ったほうがよいでしょう。
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72
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+
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73
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+
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74
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+
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75
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+
```cpp
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76
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+
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77
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+
#include <iostream>
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78
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+
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79
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+
#include <vector>
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80
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+
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81
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+
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82
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+
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83
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+
using Mat = std::vector<std::vector<int>>;
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84
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+
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85
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+
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86
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+
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87
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+
void print_array(const Mat &mat)
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88
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+
|
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89
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+
{
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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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+
for (size_t i = 0; i < mat.size(); ++i) {
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94
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+
|
|
95
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+
for (size_t j = 0; j < mat[0].size(); ++j) {
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96
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+
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|
97
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+
printf("%d ", mat[i][j]);
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98
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+
|
|
99
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+
}
|
|
100
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+
|
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101
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+
printf("\n");
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102
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+
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103
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+
}
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104
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+
|
|
105
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+
}
|
|
106
|
+
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|
107
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+
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108
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+
|
|
109
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+
int main()
|
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110
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+
|
|
111
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+
{
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112
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+
|
|
113
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+
Mat mat{
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|
114
|
+
|
|
115
|
+
{1, 2, 3},
|
|
116
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+
|
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117
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+
{4, 5, 6},
|
|
118
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+
|
|
119
|
+
{7, 8, 9},
|
|
120
|
+
|
|
121
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+
};
|
|
122
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+
|
|
123
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+
|
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124
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+
|
|
125
|
+
print_array(mat);
|
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126
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+
|
|
127
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+
|
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128
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+
|
|
129
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+
return 0;
|
|
130
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+
|
|
131
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+
}
|
|
132
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+
|
|
133
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+
|
|
134
|
+
|
|
135
|
+
```
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1
e
test
CHANGED
|
@@ -12,15 +12,15 @@
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12
12
|
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13
13
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14
14
|
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15
|
-
void print_array(int array[][3], size_t
|
|
15
|
+
void print_array(int array[][3], size_t rows)
|
|
16
16
|
|
|
17
17
|
{
|
|
18
18
|
|
|
19
19
|
|
|
20
20
|
|
|
21
|
-
for (size_t i = 0; i <
|
|
21
|
+
for (size_t i = 0; i < rows; ++i) {
|
|
22
22
|
|
|
23
|
-
for (size_t j = 0; j <
|
|
23
|
+
for (size_t j = 0; j < 3; ++j) {
|
|
24
24
|
|
|
25
25
|
printf("%d ", array[i][j]);
|
|
26
26
|
|