質問編集履歴
2
書式の改善
title
CHANGED
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File without changes
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body
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@@ -14,14 +14,24 @@
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14
14
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#include <stdio.h>
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15
15
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#include <stdlib.h>
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16
16
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17
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-
int main(int
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17
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+
int main(int argc, char *argv[])
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18
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+
{
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18
19
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char *a, *b, *c;
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19
20
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int i, n, na, nb, nc, r;
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20
21
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22
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+
if (argc != 2) {
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21
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-
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23
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+
printf("usage: %s number_of_digits\n", argv[0]);
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24
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+
return 1;
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25
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+
}
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26
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+
n = atoi(argv[1]);
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27
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+
if (n < 1) {
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28
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puts("number of digits should be greater than 1");
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29
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return 1;
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30
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+
}
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31
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+
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22
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-
a = calloc(n+1, sizeof(char));
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32
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+
a = calloc(n + 1, sizeof(char));
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23
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-
b = calloc(n+1, sizeof(char));
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33
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+
b = calloc(n + 1, sizeof(char));
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24
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-
c = calloc(n+1, sizeof(char));
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34
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+
c = calloc(n + 1, sizeof(char));
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25
35
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if ((a == NULL) || (b == NULL) || (c == NULL)) {
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26
36
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printf("cannot allocate memory.\n");
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27
37
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exit(1);
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@@ -31,28 +41,28 @@
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31
41
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b[0] = 1;
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32
42
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na = nb = 1;
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33
43
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34
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-
for (; nb<=n;){
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44
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+
for (; nb <= n;) {
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35
45
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r = 0;
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36
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-
for (i=0; i!=nb; i++) {
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46
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+
for (i = 0; i != nb; i++) {
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37
47
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r = a[i] + b[i] + r;
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38
48
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c[i] = r % 10;
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39
49
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r = r / 10;
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40
50
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}
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41
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-
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51
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+
if (r == 1) {
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42
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-
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52
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+
c[i] = 1;
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43
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-
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53
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+
nc = nb + 1;
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44
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-
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54
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+
} else {
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45
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-
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55
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+
nc = nb;
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46
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-
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56
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+
}
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47
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-
for (i=0; i!=nb; i++) a[i] = b[i];
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57
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+
for (i = 0; i != nb; i++) a[i] = b[i];
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48
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-
for (i=0; i!=nc; i++) b[i] = c[i];
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58
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+
for (i = 0; i != nc; i++) b[i] = c[i];
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49
59
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na = nb;
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50
60
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nb = nc;
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51
61
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}
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52
62
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53
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-
for (i=na-1; i>=0; i--) printf("%d", a[i]);
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63
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+
for (i = na - 1; i >= 0; i--) printf("%d", a[i]);
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54
64
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printf("\n");
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55
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-
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65
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+
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56
66
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free(a);
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57
67
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free(b);
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58
68
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free(c);
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1
書式の改善
title
CHANGED
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File without changes
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body
CHANGED
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@@ -9,8 +9,8 @@
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9
9
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標準出力に83621143489848422977と出力されることを求めています。
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10
10
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11
11
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### 該当のソースコード
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12
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-
C言語```ここに言語を入力
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13
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-
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12
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+
```C
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13
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+
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|
14
14
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#include <stdio.h>
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15
15
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#include <stdlib.h>
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16
16
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|
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@@ -58,7 +58,8 @@
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58
58
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free(c);
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59
59
|
|
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60
60
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return 0;
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61
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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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62
63
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63
64
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64
65
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### 試したこと
|