经典c程序阅读(8)

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1、经典C程序100例=71—80【程序71】题目:编写input()和output()函数输入,输出5个学生的数据记录。1•程序分析：2.程序源代码：#defineN5structstudent{charnum[6];charname[8];intscore[4];}stu[N];input(stu)structstudentstu[];{inti,j；for(i=0;i

2、.num);printf(z，name:“)；scanfstu[i].name);for(j=0;j<3;j++){printf(z/score%d.：j+1);scanf(”%d"，&stu[i].score[j]);}printf("");}}print(stu)structstudentstu[];{inti,j;printf(，zNo.NameScolSco2Sco3");for(i=0;i

3、(j=0;j<3;j++)printf(z，%-8dz/,stu[订.score[j]);printf(，z");}}main(){input();print();【程序72】题目：创建一个链表。1.程序分析：2.程序源代码：/*creatalist*/Sinclude"stdlib.h"#include"stdio.h"structlist{intdata;structlist*next;};typedefstructlistnode;typedefnode*link;voidmain(){linkptr,h

4、ead;intnum,i;ptr=(1ink)malloc(sizeof(node));ptr=head;printf(，zpleaseinput5numbers==>");for(i=0;i<=4;i++){scanf&num);ptr->data=num;ptr-〉next二(1ink)malloc(sizeof(node));iF(i=4)ptr->next二NULL;elseptr=ptr->ncxt;}ptr=head;while(ptr!=NULL){printf(z，Thevalueis=〉%d

5、n",ptr-〉data);ptr=ptr->ncxt;【程序73]题目：反向输出一个链表。1.程序分析：2.程序源代码：/^reverseoutputalist*/^include"stdlib.h"Sinclude"stdio.h"structlist{intdata;structlist*next;};typedefstructlistnode;typedefnode*link;voidmain(){linkptr,head,tail;intnum,i;tail=(link)malloc(sizeof(nod

6、e));tail->next=NULL:ptr=tai1;printf(，zpleaseinput5data==>，z);for(i二0;i〈二4;i++){scanf(z/%d，z,&num);ptr->data二num;head二(1ink)malloc(sizeof(node));head->next=ptr;ptr=head;}ptr=ptr->next;while(ptr!=NULL){printf(/zThevalueis=>%d",ptr->data);ptr=ptr->next;}}【程

7、序74】题目：连接两个链农。1.程序分析：2.程序源代码：#include"stdlib.h"^include"stdio.h"structlist{intdata;structlist*next;};typedefstructlistnode;typedefnode*link;linkdelete_node(linkpointer,linktmp){if(tmp==NULL)/^deletef让stnode*/returnpointer->next;else{if(tmp-〉next-〉next二二NULL)"d

8、eletelastnode*/tmp->next=NULL;else/^deletetheothernode*/tmp->next=tmp->next->next;returnpointer;}}voidselectionsort(1inkpointer,intnum){linktmp,btmp;inti,min;for(i=0;i