C语言程序设计何钦铭颜晖主编习题8答案

1、p173习题8第一题#include<stdio.h>int main(void)char ch;int a10;int i,j,m;printf("请输入10个整数:n");for(i=0;i<10;i+)printf("请输入%d第个数:",i+1);scanf("%d",&ai);printf("请输入a或d:");scanf(" %c",&ch);if(ch='a')for(i=0;i<9;i+)for(j=i+1;j<10;

2、j+)if(ai>aj)m=ai;ai=aj;aj=m;else if(ch='d')for(i=0;i<9;i+)for(j=i+1;j<10;j+)if(ai<aj)m=ai;ai=aj;aj=m;for(i=0;i<10;i+)printf("%d ",ai);return 0;第二题#include<stdio.h>int main(void) int a10; int i,j,x; int search(int list,int i,int x); printf("输入10个整数:");

3、 for(i=0;i<10;i+) scanf("%d",&ai); printf("输入一个整数x:"); scanf("%d",&x); j=0; for(i=0;i<10;i+) if(search(a,i,x)!=-1) j+; printf("%d",search(a,i,x); else; if(j=0) printf("-1"); return 0;int search(int list,int i,int x) int j;j=0;if(x=listi

4、) j+;else;if(j=0)return -1;elsereturn i;第三题#include<stdio.h>void houyi(int a,int *p,int n,int m);int main(void) int a20; int i,m,n; printf("请输入整数n:"); scanf("%d",&n); printf("请输入%d个整数:",n); for(i=0;i<n;i+) scanf("%d",&ai); printf("请输入您要后移

5、的位数m:"); scanf("%d",&m); houyi(a,a,n,m); for(i=0;i<n;i+) printf("%d",ai); printf("n"); return 0;void houyi(int a,int *p,int n,int m) int i; int b20; for(i=0;i<n;i+)bi=ai;for(i=0;i<n;i+)if(i<=n-m-1)*(p+i+m)=bi;else*(p+(i+m)%n)=bi;第四题#include<stdio

6、.h>void swap2(int *,int *);void bubble(int a,int n);int main(void)int n,a8;int i;printf("enter n(n<=8):");scanf("%d",&n);printf("enter a%d:",n);for(i=0;i<n;i+)scanf("%d",&ai);bubble(a,n);printf("after sorted,a%d=",n);for(i=0;i<n;i

7、+)printf("%3d",ai);return 0;void bubble(int a,int n)int i,j,m;static int b8;for(i=1;i<n;i+)for(j=0;j<n-i;j+)if(aj>aj+1)swap2(&aj,&aj+1);for(m=0;m<n;m+)if(am<=am+1)bm+;if(bm=n-1)break;void swap2(int *px,int *py)int t;t=*px;*px=*py;*py=t;第五题#include<stdio.h>#incl

8、ude<string.h>void mcopy(char *s,int m);int main(void) int i,m,l;char str100;printf("请输入您要输入的字符串:");gets(str);printf("您将从原字符串的第m位复制新字符串，请输入m:n");scanf("%d",&m);printf("复制后，新的字符串为:"); mcopy(str,m);return 0;void mcopy(char *s,int m)printf("%sn"

9、;,s+m-1);第六题#include<stdio.h>#include<string.h>void delchar(char *,char c);int main(void)char str80;char ch;printf("enter a string:");gets(str);printf("enter delete char:");scanf("%c",&ch);delchar(str,ch);printf("%sn",str);return 0;void delchar

10、(char *s,char c) int i,j;char str180; j=0;for(i=0;si!='0'i+)if(si!=c)str1j=si;j+; str1j='0'for(i=0;str1i!='0'i+,s+) *s=str1i;*s='0'第七题#include<stdio.h>#include<string.h>struct zfcchar str80;int main(void) int i,j;char str80,str180;struct zfc s5;for(i=0;i&l

11、t;5;i+)printf("请输入第%d个字符串:",i+1);scanf("%s",si.str); for(i=0;i<=3;i+)for(j=i+1;j<=4;j+)if(strcmp(si.str,sj.str)>0) strcpy(str1,si.str);strcpy(si.str,sj.str);strcpy(sj.str,str1);for(i=0;i<5;i+)puts(si.str);return 0;第八题#include<stdio.h>#include<string.h>int

12、main(void)int l,i;char str80,str180;char *p,*q;p=str;q=str1;printf("请输入一串字符:");scanf("%s",str);l=strlen(str);for(i=0;*p!='0'p+,i+)*(q+l-1-i)=*p;*(q+l)='0'if(strcmp(str,str1)=0)printf("输入的字符串是“回文”！n");else printf("输入的字符串不是“回文”！n");return 0;第九题#i

13、nclude<stdio.h>#include<string.h>int main(void)char str80;char *p;p=str;int n1,n2,n3,n4,n5;printf("输入一行文字:");gets(str); n1=n2=n3=n4=n5=0;for(;*p!='0'p+)if(*p>='a')&&(*p<='z')n1+;else if(*p>='a')&&(*p<='z')n2+;e

14、lse if(*p=' ')n3+;else if(*p>='0')&&(*p<='9')n4+;elsen5+;printf("大写字母字符的个数为:%dn",n1); printf("小写字母字符的个数为:%dn",n2);printf("空格字符的个数为: %dn",n3);printf("数字字符的个数为: %dn",n4);printf("其他字符的个数为: %dn",n5);return 0;第十题#incl

15、ude<stdio.h>#include<string.h>int strcomp(char s180,char s280);int main(void) int m;char str180,str280;printf("请输入第一个字符串:");scanf("%s",str1);printf("请输入第二个字符串:");scanf("%s",str2); m=strcomp(str1,str2);if(m=1)printf("str1>str2n");else i

16、f(m=0)printf("str1=str2n");elseprintf("str1<str2n");return 0;int strcomp(char s180,char s280) int a;if(strcmp(s1,s2)>0)a=1;else if(strcmp(s1,s2)=0)a=0;elsea=-1;return a;第十一题#include<stdio.h>#include<string.h>void fushu(char *p);int main(void)char str80;printf(&q

17、uot;请输入一个英语名词单词:");scanf("%s",str); fushu(str);puts(str);return 0;void fushu(char *p) int i,l;l=0;for(i=0;*(p+i)!='0'i+) l+;if(*(p+l-1)='y')*(p+l)='e'*(p+l+1)='s'*(p+l+2)='0'else if(*(p+l-1)='s')|(*(p+l-1)='x')|(*(p+l-2)='c&#

18、39;)&&(*(p+l-1)='h')|(*(p+l-2)='s')&&(*(p+l-1)='h')*(p+l)='e'*(p+l+1)='s'*(p+l+2)='0'else if(*(p+l-1)='o')*(p+l)='e'*(p+l+1)='s'*(p+l+2)='0'else*(p+l)='s'*(p+l+1)='0'第十二题#include<stdio.h>#include<