1 #include<stdio.h>
2 void rev()
3 {
4 char c;
5 c=getchar();
6 if(c=='$')
7 printf("%c",c);
8 else
9 {
10 rev();
11 printf("%c",c);
12 }
13 }
14 void main()
15 {
16 rev();
17 }
18 //------------
1 #include <stdio.h>
2 #include <time.h>
3 #include<conio.h>
4 #include<string.h>
5
6 #define MAX 100
7 int a[MAX];
8
9 int f(int n)
10 {
11 if(n<=1)
12 {
13 return 1;
14 }
15 return f(n-1)+f(n-2);
16 }
17
18 int main()
19 {
20 double s;
21 clock_t start, finish;
22 int i,result;
23 start = clock();
24 for(i=0;i<40;i++)
25 {
26 if(i%4==0)
27 printf("\n");
28 result=f(i);
29 printf("%d\t",result);
30 }
31
32 finish=clock();
33 s=(double)(finish - start)/CLOCKS_PER_SEC;
34 printf("\n算法耗时%lf秒\n",s);
35 printf("请按任意键结束\n");
36 getch();
37 return 0;
38 }
