質問編集履歴
3
変更ミス
test
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test
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./Main.c:
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./Main.c:3:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
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3 | main()
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| ^~~~
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./Main.c: In function ‘main’:
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./Main.c:
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./Main.c:8:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
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8 | scanf("%d",&n);
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| ^~~~~~~~~~~~~~
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./Main.c:1
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./Main.c:12:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
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12 | scanf("%f",&x[i]);
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-
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| ^~~~~~~~~~~~~~~~~
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/tmp/cc24RTvI.o: In function `main':
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-
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Main.c:(.text.startup+0x95): undefined reference to `narabekae'
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31
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-
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collect2: error: ld returned 1 exit status
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-
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14 | if(x>=-0.1*0.01*(1+sqrt(5))/2 and x<=-0.1*0.01*(1+sqrt(5))/2){
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35
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| ~ ^~~~
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37
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-
| )
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-
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39
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./Main.c:17:13: error: expected ‘;’ before ‘}’ token
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40
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41
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17 | }i=i+1
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| ^
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| ;
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18 | }
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| ~
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-
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51
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./Main.c:18:10: error: expected declaration or statement at end of input
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52
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-
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53
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18 | }
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54
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-
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55
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-
| ^
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2
題名間違い
test
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@@ -1 +1 @@
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1
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1
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クイックソートについて
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test
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File without changes
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1
打っている途中で投稿した
test
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test
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@@ -56,4 +56,104 @@
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59
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+
自分の書いたプログラムはこれです
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60
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+
|
61
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+
#include<stdio.h>
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62
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+
|
63
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+
void narabekae(int,float[]);
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64
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+
|
65
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+
main()
|
66
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+
|
67
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+
{
|
68
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+
|
69
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+
int i,j,n;
|
70
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+
|
71
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+
float x[1000];
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72
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+
|
73
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+
printf("Please input n.");
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74
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+
|
75
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+
scanf("%d",&n);
|
76
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+
|
77
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+
i=0;
|
78
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+
|
79
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+
while (i<=n-1){
|
80
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+
|
81
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+
printf("Please input %dth data.",i);
|
82
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+
|
83
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+
scanf("%f",&x[i]);
|
84
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+
|
85
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+
i=i+1;
|
86
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+
|
87
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+
}
|
88
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+
|
89
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+
narabekae(n,x);
|
90
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+
|
91
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+
i=0;
|
92
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+
|
93
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+
while(i<=n-1){
|
94
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+
|
95
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+
printf("%f\n",x[i]);
|
96
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+
|
97
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+
i=i+1;
|
98
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+
|
99
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+
}
|
100
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+
|
101
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+
}
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102
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+
|
103
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+
|
104
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+
|
105
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+
void swap(int* a, int* b)
|
106
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+
|
107
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+
{
|
108
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+
|
109
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+
int t = *a;
|
110
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+
|
111
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+
*a = *b;
|
112
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+
|
59
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-
|
113
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+
*b = t;
|
114
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+
|
115
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+
}
|
116
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+
|
117
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+
|
118
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+
|
119
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+
int partition (int array[], int l, int r) {
|
120
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+
|
121
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+
int pivot = array[r];
|
122
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+
|
123
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+
int i = (l - 1);
|
124
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+
|
125
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+
|
126
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+
|
127
|
+
for (int j = l; j <= r - 1; j++) {
|
128
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+
|
129
|
+
if (array[j] <= pivot) {
|
130
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+
|
131
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+
i++;
|
132
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+
|
133
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+
swap(&array[i], &array[j]);
|
134
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+
|
135
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+
}
|
136
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+
|
137
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+
}
|
138
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+
|
139
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+
swap(&array[i + 1], &array[r]);
|
140
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+
|
141
|
+
return (i + 1);
|
142
|
+
|
143
|
+
}
|
144
|
+
|
145
|
+
|
146
|
+
|
147
|
+
void quickSort(int array[], int l, int r) {
|
148
|
+
|
149
|
+
if (l < r) {
|
150
|
+
|
151
|
+
int pivot = partition(array, l, r);
|
152
|
+
|
153
|
+
quickSort(array, l, pivot - 1);
|
154
|
+
|
155
|
+
quickSort(array, pivot + 1, r);
|
156
|
+
|
157
|
+
}
|
158
|
+
|
159
|
+
}
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