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原创 P124.46

46.#include long Fibo(int n) { long Fibonacci; if(n==1) Fibonacci=1; else if(n==2) Fibonacci=1; else Fibonacci=Fibo(n-1)+Fi

2015-06-11 23:16:01 350

原创 p124.45

45.#include int sum(int n) { int s; if(n==1) return 1; s=n+sum(n-1); return s; } int main() { int n; while(1) { printf("input a nu

2015-06-11 22:41:57 381

原创 P124.44

44.#include int fun(int score[][3],int num) { int i,j,x=0,y=0,z=0; for(i=0;i<num;i++) { for(j=0;j<3;j++) scanf("%d",&score[i][j]); } for(i=0;i<num;i++) {

2015-06-11 22:26:11 411

原创 P124.43

43.#include #include int index(int x,int a[],int n) { int i;int j=0; printf("原始数组为(共%d个):",n); for(i=0;i<n;i++) printf("%d ",a[i]); for(i=0;i<n;i++) { if(a[

2015-06-11 22:04:15 430

原创 P124.42

42.#include int Count(double a[],int n) { int g=0,i; double k=0,j; for(i=0;i<n;i++) k=k+a[i]; j=k/n; printf("\n大于等于平均数的元素有："); for(i=0;i<n;i++) {

2015-06-11 21:41:42 431

原创 P124.41

41.#include #include int prim(int num) { int i,j=0; for(i=2;i<=sqrt(num);i++) { if(num%i==0) j++; } if(j==0) return 1; els

2015-06-04 22:46:15 352

原创 P124.39

39.#include int fun(int x,int n) { int i,s=1; for(i=0;i<n;i++) s*=x; printf("%d\n",s); return s; } int main() { int a,b; scanf("%d%d",&a,&b);

2015-06-04 21:22:33 477

原创 P123.36

36.#include int printdate(int year,int month,int day) { int d; if((year%4==0&&year%100!=0)||year%400==0) d=29; else d=28; switch(month) { case

2015-06-04 21:08:06 299

原创 38

38.#include int powers(int m,int n) { int i,sum=1; for (i=0;i<n;i++){ sum*=m; } return sum; } int sum_of_powers(int k,int n) { int i,sum=0;

2015-06-04 20:58:12 940

原创 p123,32

#include#define N 100void order(int man[],int n,int m);int find(int a[],int n,int key);main(){ int i,k,m,n,flag=1,man[N]={0}; while(flag=1) { printf("\n输入总人数n和报数间隔m:"); scanf("%d%

2015-05-21 22:48:38 471

原创 p123.30

30.#define N 60main(){ int i,j,flag=1; double a[N][N]; for(i=0;i<N;i++) { a[i][0]=1; a[i][i]=1; } for(i=2;i<N;i++) for(j=1;j<i;j++) a[i][j]=a[i-1][j-1]+a[i-1]

2015-05-21 22:19:01 453

原创 P123.29

29.#include#include#define N 10000void sort(int a[],int n){ int i,j,k,temp; for(i=0;i<n-1;i++) { k=i; for(j=i+1;j<n;j++) if(a[j]<a[k]) k=j; if(k!=i){ temp=a[k];

2015-05-21 22:06:03 308

原创 P123.28

28.#include#include#define N 100void trans(char a[],int len){ int i; for(i=0;i<len;i++){ if(a[i]64) a[i]=a[i]+32; else if(a[i]96) a[i]=a[i]-32; }

2015-05-21 21:59:38 354

原创 P122.21

21.#includefloat aveg(int a[]);int max(int a[]);int min(int a[]);float aveg(int a[]){ int i,sum=0; float av; for(i=0;i<=9;i++) { sum=sum+a[i]; } printf("%d\n",sum);

2015-05-21 21:30:46 369

原创 P123-28

28.#include#includeusing namespace std;void ZHUANHUA(char &);int main(){ char a[100]; cout<<"please input a string: "<<endl; cin>>a; for(int i=0;i<strlen(a);i++) { ZHUANHUA(a[i]

2015-05-14 23:46:33 431

原创 P122.20

20.#includevoid trans(int n,int base) { if(n==0){ return; } trans(n/base,base); if(n%base<10){ printf("%d",n%base); } else{ printf("%c",n%base-10+'A'); }}int main() { int n,ba

2015-05-14 23:18:15 327

原创 p122-16

16.#include #include int Fun(int a[], int len);int main(){ const int MAX = 100; int a[MAX] = {2,3,7,8,9,10,13,21,24,27}; int len = 10; int s = Fun(a, len); printf("%d\

2015-05-14 22:58:17 451

原创 P122-15

15.#include int main() { int a[6] = {-2,-1,0,7,9}; int i,j,x,t; scanf("%d",&x); for(i=0;i<5;i++) if(x<a[i]) break; for(j=5;j>i;j--) a[j]=a[j-1]; a[j]=x;

2015-05-14 21:32:26 339

原创 p122,17

17.#include int main(){ int a[10]; int sum = 0; for (int i = 0; i < 10; i++) { scanf("%d", &a[i]); sum += a[i]; } double average = sum / 10.0; printf("

2015-05-07 22:45:59 416

原创 p122.14

14.#include int reverse(int s);int main(){ int a; scanf("%d", &a); printf("%d %d", a, reverse(a));}int reverse(int s){ int t = 0; while(s > 0) { t *= 10; t += s % 10; s /= 1

2015-05-07 20:32:48 394

原创 p122.10

10.#include "stdio.h"#include "math.h"int main(){ float a,b,c,p,s; printf("请输入三角形的三边长："); scanf("%f%f%f",&a,&b,&c); if(a+b>c&&a+c>b&&b+c>a) printf("能构成三角形\n"); else { printf("不能构成三角形 \n");

2015-05-07 19:52:20 409

原创 p122.14

10.#include "stdio.h"int reverse( int s);int main(void){ int a; scanf("%d", &a); printf("%d %d", a, reverse(a));}int reverse(int s){ int t = 0; while(s > 0) { t *= 10; t += s % 1

2015-04-23 22:22:21 405

原创 p122-6

6.#include int main() { char ch; while ((ch = getchar()) != '\n') { if (ch >= 'a' && ch <= 'z') ch = ch - 32; printf ("%c", ch); } return 0; }

2015-04-23 21:01:37 386

原创数字排序

1.数字排序：#include int main(){ int n,i=0,j=0; int a[5]; printf("请输入要排序的数字:\n",a[5]); for(i=0;i<5;i++) scanf("%d",&a[i]); for(i=1;i<5;i++){ for(j=i;j>=1;j--){ if(a[j-1]>a[j]){ n=a[j-1];

2015-04-17 06:36:05 316

原创 P51-17

17.#include#include int isprime(int n){ int i; for(i=2; i<=sqrt(n); i++) { if(n%i == 0) { return 0; } } return 1;}int main(){ int i,n; printf("输入n:"); scanf("%d",&n); for(i=

2015-04-09 22:48:18 477

原创 P51-13

13.#include int main(){ char ch; int let = 0; int num = 0; while ((ch = getchar()) != '*') { if ((ch >= 'A' && ch = 'a' && ch <= 'z')) { let++; } else if (ch >= '0' && ch <= '9'

2015-04-09 22:29:06 359

原创 P51-16

16.#include int main(){ int a,b,c,i; printf("输入3个整数:\n"); scanf("%d%d%d",&a,&b,&c); if(a>b){ i=a; a=b; b=i; } if(a>c){ i=a; a=c; c=i; } if(b>c){ i=b; b=c; c=i; } printf

2015-04-06 15:51:16 327

原创 P51-15

13.

2015-04-06 15:07:49 593 1

原创 P51-12

12.#include int main(){int x = 7;while( !(x%2==1&&x%3==2&&x%5==4&&x%6==5)){ x=x+7;}printf("%d\n",x); return 0 ;}

2015-04-06 14:29:16 504

原创 P51-9

9.

2015-04-02 22:04:57 548

原创 P51-10

9.#include #include int main (){ int year,month; printf("please input year and month\n"); scanf("%d%d",&year,&month); if(year%4==0) { if(month == 2) printf("该月的天数是:29\n"); else if (m

2015-04-02 22:01:08 420 1

原创 P51-8

8.#include int main(){ int a,b ; printf("请输入两个整数a和b:\n"); scanf("%d %d",&a,&b); if(a%b) { printf("算式:%d/%d=%d 余数%d\n",a,b,a/b,a%b); } else{ printf("算式:%d/%d=%d\n",a,b,a/b); }

2015-04-02 21:45:47 462

原创作业p51-7

7.#include int main() { char a; char b; scanf("%c",&a); getchar();scanf("%c",&b); if((a-b)%2==0) { if(a>b) printf("%c",(a+1)); else printf("%c",(b+1)); } else { if(a>b) printf("%c",(b-1)

2015-03-27 11:36:04 447 1