实验4 - 秦始皇，打钱

实验1 源代码

 1 #include <stdio.h>
 2 #define N 4
 3 
 4 void test1() {
 5     int a[N] = {1, 9, 8, 4};          
 6     int i;
 7 
 8     printf("sizeof(a) = %d\n", sizeof(a));
 9 
10     for (i = 0; i < N; ++i)
11         printf("%p: %d\n", &a[i], a[i]);
12 
13     printf("a = %p\n", a); 
14 }
15 
16 void test2() {        
17     char b[N] = {'1', '9', '8', '4'}; 
18     int i;
19 
20     printf("sizeof(b) = %d\n", sizeof(b));
21 
22     for (i = 0; i < N; ++i)
23         printf("%p: %c\n", &b[i], b[i]);
24     
25     printf("b = %p\n", b); 
26 }
27 
28 int main() {
29     printf("测试1: int类型一维数组\n");
30     test1();
31 
32     printf("\n测试2: char类型一维数组\n");
33     test2();
34 
35     return 0;
36 }

 1 #include <stdio.h>
 2 #define N 2
 3 #define M 4
 4 
 5 void test1() {
 6     int a[N][M] = {{1, 9, 8, 4}, {2, 0, 4, 9}};
 7     int i, j;
 8 
 9     printf("sizeof(a) = %d\n", sizeof(a));
10 
11     for (i = 0; i < N; ++i)
12         for (j = 0; j < M; ++j)
13             printf("%p: %d\n", &a[i][j], a[i][j]);
14     printf("\n");
15 
16     printf("a = %p\n", a);
17     printf("a[0] = %p\n", a[0]);
18     printf("a[1] = %p\n", a[1]);
19     printf("\n");
20 }
21 
22 void test2() {
23     char b[N][M] = {{'1', '9', '8', '4'}, {'2', '0', '4', '9'}};
24     int i, j;
25 
26     printf("sizeof(b) = %d\n", sizeof(b));
27 
28     for (i = 0; i < N; ++i)
29         for (j = 0; j < M; ++j)
30             printf("%p: %c\n", &b[i][j], b[i][j]);
31     printf("\n");
32 
33     printf("b = %p\n", b);
34     printf("b[0] = %p\n", b[0]);
35     printf("b[1] = %p\n", b[1]);
36 }
37 
38 int main() {
39     printf("测试1: int型两维数组");
40     test1();
41 
42     printf("\n测试2: char型两维数组");
43     test2();
44 
45     return 0;
46 }

实验一截屏

实验二源代码

 1 #include <stdio.h>
 2 #include <string.h>
 3 
 4 #define N 80
 5 
 6 void swap_str(char s1[N], char s2[N]);
 7 void test1();
 8 void test2();
 9 
10 int main() {
11     printf("测试1: 用两个一维char数组，实现两个字符串交换\n");
12     test1();
13 
14     printf("\n测试2: 用二维char数组，实现两个字符串交换\n");
15     test2();
16 
17     return 0;
18 }
19 
20 void test1() {
21     char views1[N] = "hey, C, I hate u.";
22     char views2[N] = "hey, C, I love u.";
23 
24     printf("交换前: \n");
25     puts(views1);
26     puts(views2);
27 
28     swap_str(views1, views2);
29 
30     printf("交换后: \n");
31     puts(views1);
32     puts(views2);
33 }
34 
35 void test2() {
36     char views[2][N] = {"hey, C, I hate u.", 
37                         "hey, C, I love u."};
38 
39     printf("交换前: \n");
40     puts(views[0]);
41     puts(views[1]);
42 
43     swap_str(views[0], views[1]);
44 
45     printf("交换后: \n");
46     puts(views[0]);
47     puts(views[1]);
48 }
49 
50 void swap_str(char s1[N], char s2[N]) {
51     char tmp[N];
52 
53     strcpy(tmp, s1);
54     strcpy(s1, s2);
55     strcpy(s2, tmp);
56 }

实验二截屏

实验三源代码

 1 #include <stdio.h>
 2 #define N 80
 3 
 4 int count(char x[]);
 5 
 6 int main() {
 7     char words[N+1];
 8     int n;
 9 
10     while(gets(words) != NULL) {
11         n = count(words);
12         printf("单词数: %d\n\n", n);
13     }
14 
15     return 0;
16 }
17 
18 int count(char x[]) {
19     int i;
20     int word_flag = 0;  
21     int number = 0; 
22 
23     for(i = 0; x[i] != '\0'; i++) {
24         if(x[i] == ' ')
25             word_flag = 0;
26         else if(word_flag == 0) {
27             word_flag = 1;
28             number++;
29         }
30     }
31 
32     return number;
33 }

 1 #include <stdio.h>
 2 #define N 1000
 3 
 4 int main() {
 5     char line[N];
 6     int word_len;   
 7     int max_len;  
 8     int end;  
 9     int i;
10 
11     while(gets(line) != NULL) {
12         word_len = 0;
13         max_len = 0;
14         end = 0;
15 
16         i = 0;
17         while(1) {
18             while(line[i] == ' ') {
19                 word_len = 0;  
20                 i++;
21             }
22 
23             while(line[i] != '\0' && line[i] != ' ') {
24                 word_len++;
25                 i++;
26             }
27         
28             if(max_len < word_len) {
29                 max_len = word_len;
30                 end = i;  
31             }
32 
33             if(line[i] == '\0')
34                 break;
35         }
36 
37         printf("最长单词: ");
38         for(i = end - max_len; i < end; ++i)
39             printf("%c", line[i]);
40         printf("\n\n");
41     }
42 
43     return 0;
44 }

实验三截屏

实验四源代码

 1 #include <stdio.h>
 2 #include <string.h>
 3 #define N 100
 4 
 5 void dec_to_n(int x, int n);
 6 
 7 int main() {
 8     int x;
 9 
10     printf("输入一个十进制整数: ");
11     while(scanf("%d", &x) != EOF) {
12         dec_to_n(x, 2);  
13         dec_to_n(x, 8);  
14         dec_to_n(x, 16); 
15 
16         printf("\n输入一个十进制整数: ");
17     }
18 
19     return 0;
20 }
21 
22 
23 void dec_to_n(int x, int n)
24 {
25     int a[N];
26     char t;
27     int i = 1;
28     
29     memset(a,'\0',sizeof(a));
30     while(x >= n)
31     {
32         a[i] = x%n;
33         x /= n;
34         i++;
35     }
36     a[i] = x;
37     
38     for(;i > 0;i--)
39     {
40         if(a[i] == 10)
41         {
42             t = 'A';
43             printf("%c",t);
44         }
45         else if(a[i] > 10)
46         {
47             t = 'A'+a[i]-10;
48             printf("%c",t);
49         }
50         else
51         {
52             printf("%d",a[i]);
53         }
54     }
55     printf("\n");
56 }

实验四截屏

实验五源代码

 1 #include <stdio.h>
 2 #define N 5
 3 
 4 void input(int x[], int n);
 5 void output(int x[], int n);
 6 double average(int x[], int n);
 7 void bubble_sort(int x[], int n);
 8 
 9 int main() {
10     int scores[N];
11     double ave;
12     
13     printf("录入%d个分数:\n", N);
14     input(scores, N);
15     
16     printf("\n输出课程分数: \n");
17     output(scores, N);
18     
19     printf("\n课程分数处理: 计算均分、排序...\n");
20     ave = average(scores, N);
21     bubble_sort(scores, N);
22     
23     printf("\n输出课程均分: %.2f\n", ave);
24     printf("\n输出课程分数(高->低):\n");
25     output(scores, N);
26     
27     return 0;
28 }
29 
30  
31 void input(int x[], int n) {
32     int i;
33     
34     for(i = 0; i < n; ++i)
35         scanf("%d", &x[i]); 
36 }
37 
38 void output(int x[], int n) {
39     int i;
40     
41     for(i = 0; i < n; ++i)
42         printf("%d ", x[i]);
43     printf("\n");
44 }
45 
46 double average(int x[], int n)
47 {
48     int i, sum = 0;
49     double ave;
50     
51     for(i = 0;i < n; i++)
52     {
53         sum += x[i];
54     }
55     ave = 1.0*sum/n;
56     
57     return ave;
58 }
59 
60 void bubble_sort(int x[], int n)
61 {
62     int i, j, t;
63     for(i = 0;i < n-1;i++)
64     {
65         for(j = 0;j < n-1-i;j++)
66         {
67             if(x[j] < x[j+1])
68             {
69                 t = x[j];
70                 x[j] = x[j+1];
71                 x[j+1] = t;
72             }
73         }
74     }
75 }

实验五截屏

实验六源代码

 1 #include <stdio.h>
 2 #include <string.h>
 3 #define N 5
 4 #define M 20
 5 
 6 void output(char str[][M], int n);
 7 void bubble_sort(char str[][M], int n);
 8 
 9 int main() {
10     char name[][M] = {"Bob", "Bill", "Joseph", "Taylor", "George"};
11     int i;
12 
13     printf("输出初始名单:\n");
14     output(name, N);
15 
16     printf("\n排序中...\n");
17     bubble_sort(name, N); 
18 
19     printf("\n按字典序输出名单:\n");
20     output(name, N);
21 
22     return 0;
23 }
24 
25 
26 void output(char str[][M], int n) {
27     int i;
28 
29     for(i = 0; i < n; ++i)
30         printf("%s\n", str[i]);
31 }
32 
33 void bubble_sort(char str[][M], int n)
34 {
35     int i, j;
36     char t[M];
37     for(i = 0;i < n-1;i++)
38     {
39         for(j = 0;j < n-i-1;j++)
40         {
41             if(strcmp(str[j],str[j+1]) > 0)
42             {
43                 strcpy(t,str[j]);
44                 strcpy(str[j],str[j+1]);
45                 strcpy(str[j+1],t);
46             }
47         }
48     }
49 }

实验六截屏

试验七源代码

 1 #include <stdio.h>
 2 #include <stdlib.h>
 3 #include <string.h>
 4 #define N 200
 5 
 6 char x[N];
 7 
 8 int main()
 9 {
10     int i, j;
11     
12     memset(x,'\0',N);
13     while(fgets(x,N,stdin) != NULL)
14     {
15         for(i = 0;i < strlen(x)-1;i++)
16         {
17             for(j = i+1;j < strlen(x);j++)
18             {
19                 if(x[i] == x[j])
20                 {
21                     printf("YES\n");
22                     goto out;
23                 }
24             }
25         }
26         printf("NO\n");
27         out:
28             memset(x,'\0',N);
29             fgets(x,N,stdin);
30     }
31     
32     system("pause");
33     return 0;
34 }

试验七截屏

实验八源代码

 1 #include <stdio.h>
 2 #define N 100
 3 #define M 4
 4 
 5 void output(int x[][N], int n);          
 6 void rotate_to_right(int x[][N], int n); 
 7 
 8 
 9 int main() {
10     int t[][N] = {{21, 12, 13, 24},
11                   {25, 16, 47, 38},
12                   {29, 11, 32, 54},
13                   {42, 21, 33, 10}};
14 
15     printf("原始矩阵:\n");
16     output(t, M); 
17 
18     rotate_to_right(t, M);
19 
20     printf("变换后矩阵:\n");
21     output(t, M); 
22 
23     return 0;
24 }
25 
26 
27 void output(int x[][N], int n) {
28     int i, j;
29 
30     for (i = 0; i < n; ++i) {
31         for (j = 0; j < n; ++j)
32             printf("%4d", x[i][j]);
33 
34         printf("\n");
35     }
36 }
37 
38 void rotate_to_right(int x[][N], int n)
39 {
40     int i, t, j;
41     for(i = 0;i < n;i++)
42     {
43         t = x[i][n-1];
44         for(j = n-1;j >= 1;j--)
45         {
46             x[i][j] = x[i][j-1];
47         }
48         x[i][0] = t;
49     }
50 }

实验八截屏

发表于 2023-11-14 10:26 秦始皇，打钱阅读(19) 评论(0) 收藏举报