回答編集履歴
3
実験コード差し替え
test
CHANGED
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@@ -24,31 +24,37 @@
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24
24
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25
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27
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+
`dis = 12`ですので`wind_speed = 0.2`となりますが、`wind_speed<=0.2`の条件には引っかかりません。
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28
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29
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30
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27
31
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```c
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32
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33
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#include <stdio.h>
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34
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35
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int main(void){
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36
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33
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-
fo
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37
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+
float dis = 12;
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34
38
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35
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-
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39
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float wind_speed = dis/60;
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36
40
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37
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-
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41
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+
wind_speed = round(wind_speed*10.0)/10.0;
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42
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39
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-
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-
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printf("%f\n",wind_speed);
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46
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-
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47
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if(wind_speed<=0.2){
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48
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45
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-
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49
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printf("<=");
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50
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47
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-
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51
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}else if(wind_speed>=0.3){
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48
52
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-
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53
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printf(">=");
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50
54
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51
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-
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55
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}else{
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56
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57
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printf("else");
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58
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}
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60
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@@ -64,14 +70,8 @@
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70
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65
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```
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66
72
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67
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-
0.00000
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73
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+
0.200000
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68
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-
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69
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-
0.100000 <= 0.2
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70
74
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71
75
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else
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72
76
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73
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-
0.300000 >= 0.3
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74
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-
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75
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-
0.400000 >= 0.3
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76
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-
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77
77
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```
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2
追加
test
CHANGED
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@@ -16,7 +16,7 @@
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16
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17
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18
18
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19
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-
`wind_speed`が`0.2`と`0.3`の間になってしまったときに問題が発生します。
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19
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+
`wind_speed`が`0.2`と`0.3`の間になってしまったときに問題が発生します。他の箇所も同様です。
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20
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21
21
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「小数点第2位で四捨五入しているからそんなことはありえない」と思うかもしれませんので
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22
22
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1
実験コード差し替え
test
CHANGED
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@@ -30,19 +30,19 @@
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30
30
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31
31
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int main(void){
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32
32
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33
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-
for(int i=0; i<
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33
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for(int i=0; i<5;i++){
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34
34
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35
35
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float x = (float)i/10;
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36
36
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37
37
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38
38
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39
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-
if(x<=0.
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if(x<=0.2){
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40
40
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41
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-
printf("%f <= 0.
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printf("%f <= 0.2\n", x);
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42
42
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43
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-
}else if( x >=0.
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43
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}else if( x >=0.3){
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44
44
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45
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-
printf("%f >= 0.
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45
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+
printf("%f >= 0.3\n", x);
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46
46
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47
47
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}else{
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48
48
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@@ -54,6 +54,8 @@
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54
54
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55
55
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}
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56
56
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57
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+
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58
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+
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57
59
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```
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60
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59
61
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@@ -62,24 +64,14 @@
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62
64
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63
65
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```
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64
66
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65
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-
0.000000 <= 0.
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67
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+
0.000000 <= 0.2
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66
68
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67
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-
0.100000 <= 0.
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69
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+
0.100000 <= 0.2
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68
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-
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69
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-
0.200000 <= 0.3
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70
70
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71
71
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else
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72
72
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73
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-
0.
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73
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+
0.300000 >= 0.3
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74
74
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75
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-
0.
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75
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+
0.400000 >= 0.3
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76
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-
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77
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-
0.600000 >= 0.4
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78
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-
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79
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-
0.700000 >= 0.4
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80
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-
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81
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-
0.800000 >= 0.4
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82
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-
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83
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-
0.900000 >= 0.4
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84
76
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85
77
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```
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