程序71】題目:編寫(xiě)input()和output()函數輸入,輸出5個(gè)學(xué)生的數據記錄。1.程序分析:2.程序源代碼:#define N 5struct student{ char num[6]; char name[8]; int score[4];} stu[N];input(stu)struct student stu[];{ int i,j; for(i=0;i<N;i++) { printf("\n please input %d of %d\n",i+1,N); printf("num: "); scanf("%s",stu[i].num); printf("name: "); scanf("%s",stu[i].name); for(j=0;j<3;j++) { printf("score %d.",j+1); scanf("%d",&stu[i].score[j]); } printf("\n"); }}print(stu)struct student stu[];{ int i,j;printf("\nNo. Name Sco1 Sco2 Sco3\n");for(i=0;i<N;i++){ printf("%-6s%-10s",stu[i].num,stu[i].name); for(j=0;j<3;j++) printf("%-8d",stu[i].score[j]); printf("\n");}}main(){ input(); print();}==============================================================【程序72】題目:創(chuàng )建一個(gè)鏈表。1.程序分析: 2.程序源代碼:/*creat a list*/#include "stdlib.h"#include "stdio.h"struct list{ int data;struct list *next;};typedef struct list node;typedef node *link;void main(){ link ptr,head;int num,i;ptr=(link)malloc(sizeof(node));ptr=head;printf("please input 5 numbers==>\n");for(i=0;i<=4;i++){ scanf("%d",&num); ptr->data=num; ptr->next=(link)malloc(sizeof(node)); if(i==4) ptr->next=NULL; else ptr=ptr->next;}ptr=head;while(ptr!=NULL){ printf("The value is ==>%d\n",ptr->data); ptr=ptr->next;}}==============================================================【程序73】題目:反向輸出一個(gè)鏈表?! ?.程序分析:2.程序源代碼:/*reverse output a list*/#include "stdlib.h"#include "stdio.h"struct list{ int data; struct list *next;};typedef struct list node;typedef node *link;void main(){ link ptr,head,tail; int num,i; tail=(link)malloc(sizeof(node)); tail->next=NULL; ptr=tail; printf("\nplease input 5 data==>\n"); for(i=0;i<=4;i++) { scanf("%d",&num); ptr->data=num; head=(link)malloc(sizeof(node)); head->next=ptr; ptr=head; }ptr=ptr->next;while(ptr!=NULL){ printf("The value is ==>%d\n",ptr->data); ptr=ptr->next;}}==============================================================【程序74】題目:連接兩個(gè)鏈表。1.程序分析:2.程序源代碼:#include "stdlib.h"#include "stdio.h"struct list{ int data;struct list *next;};typedef struct list node;typedef node *link;link delete_node(link pointer,link tmp){if (tmp==NULL) /*delete first node*/ return pointer->next;else{ if(tmp->next->next==NULL)/*delete last node*/ tmp->next=NULL; else /*delete the other node*/ tmp->next=tmp->next->next; return pointer;}}void selection_sort(link pointer,int num){ link tmp,btmp; int i,min; for(i=0;i<num;i++) { tmp=pointer; min=tmp->data; btmp=NULL; while(tmp->next) { if(min>tmp->next->data) {min=tmp->next->data; btmp=tmp; } tmp=tmp->next; }printf("\40: %d\n",min);pointer=delete_node(pointer,btmp);}}link create_list(int array[],int num){ link tmp1,tmp2,pointer;int i;pointer=(link)malloc(sizeof(node));pointer->data=array[0];tmp1=pointer;for(i=1;i<num;i++){ tmp2=(link)malloc(sizeof(node)); tmp2->next=NULL; tmp2->data=array[i]; tmp1->next=tmp2; tmp1=tmp1->next;}return pointer;}link concatenate(link pointer1,link pointer2){ link tmp;tmp=pointer1;while(tmp->next) tmp=tmp->next;tmp->next=pointer2;return pointer1;}void main(void){ int arr1[]={3,12,8,9,11}; link ptr; ptr=create_list(arr1,5); selection_sort(ptr,5);}==============================================================【程序75】題目:放松一下,算一道簡(jiǎn)單的題目。1.程序分析:2.程序源代碼:main(){int i,n;for(i=1;i<5;i++){ n=0; if(i!=1) n=n+1; if(i==3) n=n+1; if(i==4) n=n+1; if(i!=4) n=n+1; if(n==3) printf("zhu hao shi de shi:%c",64+i); }}==============================================================【程序76】題目:編寫(xiě)一個(gè)函數,輸入n為偶數時(shí),調用函數求1/2+1/4+...+1/n,當輸入n為奇數時(shí),調用函數 1/1+1/3+...+1/n(利用指針函數)1.程序分析:2.程序源代碼:main()#include "stdio.h"main(){float peven(),podd(),dcall();float sum;int n;while (1){ scanf("%d",&n); if(n>1) break;}if(n%2==0){ printf("Even="); sum=dcall(peven,n);}else{ printf("Odd="); sum=dcall(podd,n);}printf("%f",sum);}float peven(int n){float s;int i;s=1;for(i=2;i<=n;i+=2) s+=1/(float)i;return(s);}float podd(n)int n;{float s;int i;s=0;for(i=1;i<=n;i+=2) s+=1/(float)i;return(s);}float dcall(fp,n)float (*fp)();int n;{float s;s=(*fp)(n);return(s);}==============================================================【程序77】題目:填空練習(指向指針的指針)1.程序分析: 2.程序源代碼:main(){ char *s[]={"man","woman","girl","boy","sister"};char **q;int k;for(k=0;k<5;k++){ ;/*這里填寫(xiě)什么語(yǔ)句*/ printf("%s\n",*q);}}==============================================================【程序78】題目:找到年齡最大的人,并輸出。請找出程序中有什么問(wèn)題。1.程序分析:2.程序源代碼:#define N 4#include "stdio.h"static struct man{ char name[20];int age;} person[N]={"li",18,"wang",19,"zhang",20,"sun",22};main(){struct man *q,*p;int i,m=0;p=person;for (i=0;i<N;i++){if(m<p->age) q=p++; m=q->age;}printf("%s,%d",(*q).name,(*q).age);}==============================================================【程序79】題目:字符串排序。1.程序分析:2.程序源代碼:main(){char *str1[20],*str2[20],*str3[20];char swap();printf("please input three strings\n");scanf("%s",str1);scanf("%s",str2);scanf("%s",str3);if(strcmp(str1,str2)>0) swap(str1,str2);if(strcmp(str1,str3)>0) swap(str1,str3);if(strcmp(str2,str3)>0) swap(str2,str3);printf("after being sorted\n");printf("%s\n%s\n%s\n",str1,str2,str3);}char swap(p1,p2)char *p1,*p2;{char *p[20];strcpy(p,p1);strcpy(p1,p2);strcpy(p2,p);}==============================================================【程序80】題目:海灘上有一堆桃子,五只猴子來(lái)分。第一只猴子把這堆桃子憑據分為五份,多了一個(gè),這只 猴子把多的一個(gè)扔入海中,拿走了一份。第二只猴子把剩下的桃子又平均分成五份,又多了 一個(gè),它同樣把多的一個(gè)扔入海中,拿走了一份,第三、第四、第五只猴子都是這樣做的, 問(wèn)海灘上原來(lái)最少有多少個(gè)桃子?1.程序分析:2.程序源代碼:main(){int i,m,j,k,count;for(i=4;i<10000;i+=4){ count=0;m=i;for(k=0;k<5;k++){ j=i/4*5+1; i=j; if(j%4==0) count++; else break;} i=m; if(count==4) {printf("%d\n",count); break;}}}
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