回答編集履歴
2
文言修正
test
CHANGED
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@@ -4,7 +4,7 @@
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4
4
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5
5
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6
6
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7
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-
128で割った時の
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7
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+
128で割った時の切り上げの結果を元に、switch文で処理してます。
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8
8
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9
9
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速度への影響はわかりませんが、if文よりはいくらかましなんですかね。
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10
10
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1
提示コードのフォーマット修正
test
CHANGED
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@@ -20,119 +20,119 @@
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20
20
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21
21
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22
22
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23
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-
int main()
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23
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+
int main() {
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24
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25
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-
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25
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int alarm_h = 6;
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27
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-
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int alarm_m = 30;
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29
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-
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vector<int> resistances = {0, 1, 127, 128, 129, 255, 256, 257,
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30
30
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31
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-
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31
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383, 384, 385, 511, 512, 513, 767, 768,
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32
32
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33
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-
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769, 895, 896, 897, 1022, 1023, 1024};
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34
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35
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-
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35
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int ans;
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36
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37
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-
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37
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for(int i = 0; i < resistances.size(); i++) {
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38
38
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39
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-
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39
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cout << resistances[i] << " ";
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40
40
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41
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-
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41
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ans = (resistances[i] + 128 - 1) / 128;
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42
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43
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-
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cout << ans;
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45
45
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46
46
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47
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-
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47
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+
switch(ans) {
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48
48
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49
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-
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49
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+
case 0: // if (resistance <= 128) {
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50
50
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51
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-
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51
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+
case 1:
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52
52
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53
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-
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53
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alarm_h = 6;
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54
54
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55
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-
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55
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alarm_m = 0;
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56
56
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57
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-
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57
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+
cout << " A h:" << alarm_h << " m:" << alarm_m << endl;
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58
58
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59
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-
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59
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+
break;
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60
60
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61
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-
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61
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+
case 2: // if (resistance <= 256) {
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62
62
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63
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-
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63
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alarm_h = 6;
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64
64
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65
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-
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65
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+
alarm_m = 30;
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66
66
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67
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-
alarm_m = 30;
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68
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-
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69
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-
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67
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cout << " B h:" << alarm_h << " m:" << alarm_m << endl;
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70
68
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69
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72
70
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73
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-
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71
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+
break;
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74
72
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75
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-
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73
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+
case 3: // else if (resistance <= 384)
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76
74
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77
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-
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75
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alarm_h = 6;
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78
76
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79
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-
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77
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+
alarm_m = 45;
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80
78
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81
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-
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79
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cout << " C h:" << alarm_h << " m:" << alarm_m << endl;
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82
80
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83
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-
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81
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+
break;
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84
82
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85
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-
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83
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+
case 4: // else if (resistance <= 512)
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86
84
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87
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-
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85
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alarm_h = 7;
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88
86
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89
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-
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87
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+
alarm_m = 0;
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90
88
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91
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-
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89
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cout << " D h:" << alarm_h << " m:" << alarm_m << endl;
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92
90
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93
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-
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91
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+
break;
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94
92
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95
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-
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93
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+
case 5: // else if (resistance <= 768)
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96
94
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97
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-
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95
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+
case 6:
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98
96
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99
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-
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97
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alarm_h = 7;
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100
98
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101
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-
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99
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+
alarm_m = 30;
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102
100
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103
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-
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101
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+
cout << " E h:" << alarm_h << " m:" << alarm_m << endl;
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104
102
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105
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-
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103
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+
break;
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106
104
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107
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-
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105
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+
case 7: // else if (resistance <= 896)
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108
106
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109
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-
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107
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+
alarm_h = 8;
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110
108
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111
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-
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109
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+
alarm_m = 0;
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112
110
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113
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-
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111
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+
cout << " F h:" << alarm_h << " m:" << alarm_m << endl;
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114
112
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115
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-
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113
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+
break;
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116
114
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117
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-
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115
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+
case 8: // else if (resistance <= 1023)
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118
116
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119
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-
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117
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+
alarm_h = 8;
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120
118
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121
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-
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119
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+
alarm_m = 30;
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122
120
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123
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-
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121
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+
cout << " G h:" << alarm_h << " m:" << alarm_m << endl;
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124
122
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125
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-
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123
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+
break;
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126
124
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127
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-
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125
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+
default:
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128
126
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129
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-
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127
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+
break;
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130
128
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131
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-
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129
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+
}
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132
130
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133
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-
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131
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+
}
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134
132
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135
133
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}
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134
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+
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135
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+
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136
136
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137
137
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138
138
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