#define N 5 struct 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(); } |
/*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); tr=ptr->next; } } |
「程序73」
题目:反向输出一个链表。
1.程序分析:
2.程序源代码:
/*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; } } |
#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); } |
#p#副标题#e#
「程序75」
题目:放松一下,算一道简单的题目。
1.程序分析:
2.程序源代码:
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); } } |
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」
题目:填空练习(指向指针的指针)
1.程序分析:
2.程序源代码:
main() { char *s[]={"man","woman","girl","boy","sister"}; char **q; int k; for(k=0;k<5;k++) { ;/*这里填写什么语句*/ printf("%s\n",*q); } } |
#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); } |
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」
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;} } } |