试验3 c语言函数应用编程

 1 #include<stdio.h>
 2 #include<stdlib.h>
 3 #include<time.h>
 4 #include<windows.h>
 5 #define N 80
 6 
 7 void print_text(int line, int col, char text[]);
 8 void print_spaces(int n);
 9 void print_blank_lines(int n);
10 
11 int main(){
12     int line,col,i;
13     char text[N] = "hi,November~";
14     
15     srand(time(0));
16     
17     for(i = 1;i <= 10; ++i){
18         line = rand() % 25;
19         col = rand() % 80;
20         print_text(line,col,text);
21         Sleep(1000);
22     }
23     return 0;
24 } 
25 
26 
27 void print_spaces(int n){
28     int i;
29     
30     for(i = 1;i <= n; ++i)
31         printf(" ");
32 }
33 
34 
35 void print_blank_lines(int n){
36     int i;
37     
38     for(i = 1;i <= n; ++i)
39         printf("\n");
40 }
41 
42 
43 void print_text(int line,int col,char text[]){
44     print_blank_lines(line-1);
45     print_spaces(col-1);
46     printf("%s", text);
47     
48 }

 1 #include<stdio.h>
 2 long long fac(int n);
 3 
 4 int main(){
 5     int i,n;
 6     
 7     printf("Eter n: ");
 8     scanf("%d",&n);
 9     for(i = 1;i <= n; ++i)
10        printf("%d! = lld\n" ,i,fac(i));
11        
12     return 0;
13 }
14 
15 
16 long long fac(int n){
17     static long long p = 1;
18     
19     p = p * n;
20     
21     return p;
22 }

 1 #include<stdio.h>
 2 long long fac(int n);
 3 
 4 int main(){
 5     int i,n;
 6     
 7     printf("Eter n: ");
 8     scanf("%d",&n);
 9     for(i = 1;i <= n; ++i)
10        printf("%d! = lld\n" ,i,fac(i));
11        
12     return 0;
13 }
14 
15 
16 long long fac(int n){
17     static long long p = 1;
18     printf("p=%lld\n",p);
19     p = p * n;
20     
21     return p;
22 }

 1 #include<stdio.h>
 2 int func(int,int);
 3 
 4 int main(){
 5     int k = 4, m = 1, p1, p2;
 6     
 7     p1=func(k, m);
 8     p2=func(k, m);
 9     printf("%d, %d\n", p1, p2);
10     
11     return 0;
12 }
13 
14 
15 int func(int a, int b){
16     static int m = 0, i = 2;
17     
18     i += m + 1;
19     m = i + a + b;
20     
21     return m; 
22 }

 1 #include<stdio.h>
 2 long long func(int n);
 3 
 4 int main()
 5 {
 6     int n;
 7     long long f;
 8     
 9     while (scanf("%d",&n)!=EOF){
10         f = func(n) - 1;
11         printf("n = %d, f = %lld\n", n, f);
12     }
13     
14     return 0;
15  } 
16  
17  
18  long long func(int n){
19      if(n==0){
20          return 1;
21      }
22     else if(n==1){
23          return 2;
24      }
25     else{
26         return 2 * func(n - 1);
27     }
28  
29  }

 1 #include<stdio.h>
 2 int main(){
 3     int n, m;
 4     int sum1 = 1;
 5     int sum2 = 1;
 6     int sum3 = 1;
 7     int ans;
 8     while(scanf("%d%d", &n, &m)!=EOF){
 9     if(m==0){
10         ans = 1;
11     }
12     else{
13         int i = 1;
14     for (i = 1; i <= n; i++){
15         sum1 *= i;
16         }
17     int j = 1;
18     for (j = 1; j <= m; j++){
19         sum2 *= j;
20         }
21     int x = 1;
22     for (x = 1; x<= n - m; x++){
23         sum3 *= x;
24     }    
25        ans = sum1 / sum2 / sum3; 
26     } 
27         printf("n = %d, m = %d, ans = %d\n", n, m, ans);
28         sum1 = 1;
29         sum2 = 1;
30         sum3 = 1;    
31   } 
32     
33     return 0;
34 }

 1 #include<stdio.h>
 2 int func(int n, int m);
 3 
 4 int main(){
 5     int n, m;
 6     
 7     while(scanf("%d%d", &n, &m) != EOF)
 8     printf("n = %d, m = %d, ans = %d\n", n, m, func(n, m));
 9     
10     return 0;
11 }
12 
13 int func(int n, int m){
14     if(n<m){
15         return 0;
16     }
17     else{
18     int a;
19     if(m == 0){
20         a = 1;
21     }
22     else if(m == 1){
23         a = n;
24     }
25     else {
26         return func(n -1, m) + func(n - 1, m - 1);
27     }
28     return a;
29   }
30 }

 1 #include<stdio.h>
 2 #include<stdlib.h>
 3 void hanoi(unsigned int n, char from, char temp, char to);
 4 void moveplate(unsigned int n, char from, char to);
 5 
 6 int main()
 7 {
 8     unsigned int n;
 9     int count = 0;
10     while(scanf ("%u", &n)!=EOF){
11         hanoi(n, 'A', 'B', 'C');
12         printf("\n");
13     int i=1;
14     for(i = 1; i <= n; i++){
15         count = 2 * count + 1;
16     }    
17         printf("一共移动了%d次\n",count);
18         printf("\n");
19         count = 0;
20     }
21     system("pause");
22     
23     return 0;
24 }
25 
26 void hanoi(unsigned int n, char from, char temp, char to){
27     if (n == 1){
28         moveplate (n, from, to);
29     }
30     else{
31         hanoi(n - 1, from, to, temp);
32         moveplate(n, from, to);
33         hanoi(n - 1, temp, from, to);
34     }
35 }
36 
37 void moveplate(unsigned int n, char from, char to){
38     printf("%u : %c-- > %c\n", n, from, to);
39     
40 }

 1 #include<stdio.h>
 2 #include<math.h>
 3 long func(long s);
 4 
 5 int main()
 6 {
 7     long s, t;
 8     
 9     printf("Enter a number: ");
10     while(scanf("%ld", &s)!=EOF){
11         t = func(s);
12         printf("new number is: %ld\n\n", t);
13         printf("Enter a number: "); 
14     }
15     
16     return 0;
17 }
18 
19 long func(long s){
20     int n = 0;
21     int m = 0;
22     int i = 0;
23     int j;
24     while(s > 0){
25     n = s % 10;
26     if(n % 2 != 0){
27         m = 10 * m + n; 
28       }
29     s /= 10;
30     }
31     while(m > 0){
32           j = m % 10;
33         i = i * 10 + j;
34        m /= 10;
35     }
36     return i;
37 }
38 
39 
40