某个人年龄转换2进制就是1100011,求计算他的年纪。请回答。,十进制数99转换成二进制数是

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Q1:某个人年龄转换2进制就是1100011,求计算他的年纪1请回答http://redoufu.com/。

(1100011)2=(((((((0*2 1)*2 1)*2 0)*2 0)*2 0)*2 1)*2 1)10=((((((1*2 1)*2 0)*2 0)*2 0)*2 1)*2 1)10=(((((3*2 0)*2 0)*2 0)*2 1)*2 1)10=((((6*2 0)*2 0)* 2 1)*2 1)10=(((12*2 0)*2 1)*2 1)10=((24*2 1)*2 1)10=(49*2 1)10=(99)10

Q2:怎么将1100011转换成10进制的求过程答案

100011为二进制数,到十进制的转换过程为=12 612 502 402 302 212 112 0=64 32 21=993

Q3:一个人的年龄分别用十进制和三进制表示结果在十进制数的末尾填上0就是三进制数通过解答求出这个人的年龄

首先不可超过100,因为三进制的1220最大是27+2X9+2X3=51一位数设为x:X=3X 得x=0(无意义)两位数设为10x+y:10x+y=9x+3y 得x=2y因为三进制中最大为2,得x=2,y=121三进制中每一位是3的递增幂,如0,1,2,3

Q4:有谁知道二进制数110011和100011转换为二进制分别是多少,求详解!!先谢谢了

二进制到二进制,对吗?

Q5:用C语言 设计一学生成绩管理系统,要求: 1. 学生成绩的信息包括:学号、姓名、性别、年龄、系别、班级、

/*头文件学生成绩管理系统C代码*/#include #include#include /*其它说明*/#include /*字符串函数*/#include /*内存操作函数*/#include /*字符操作函数*/#include /*动态地址分配函数*/#define LEN sizeof(STUDENT)typedef struct stu /*定义结构体数组用于缓存数据*/{ char num[6]; char name[5]; int score[3]; int sum; float average; int order; struct stu *next;}STUDENT;/*函数原型*/STUDENT *init(); /*初始化函数*/int menu_select(); /*菜单函数*/STUDENT *create(); /*创建链表*/void print(STUDENT *head); /* 显示全部记录*/void search(STUDENT *head); /*查找记录*/STUDENT *delete(STUDENT *head); /*删除记录*/STUDENT *sort(STUDENT *head); /*排序*/STUDENT *insert(STUDENT *head,STUDENT *newnode); /*插入记录*/void save(STUDENT *head); /*保存文件*/STUDENT *load(); /*读文件*//*主函数界面*/main(){ STUDENT *head,newnode; head=init(); /*链表初始化,使head的值为NULL*/for(;;) /*循环无限次*/{ switch(menu_select()) { case 1:head=create();break; case 2:print(head);break; case 3:search(head);break; case 4:head=delete(head);break; case 5:head=sort(head);break; case 6:head=insert(head,&newnode;);break; /*&newnode;表示返回地址*/ case 7:save(head);break; case 8:head=load(); break; case 9:exit(0); /*如菜单返回值为9则程序结束*/ } }}/*初始化函数*/STUDENT *init(){ return NULL; /*返回空指针*/}/*菜单选择函数*/menu_select(){int n;struct date d; /*定义时间结构体*/getdate(&d;); /*读取系统日期并把它放到结构体d中*/printf("press any key to enter the menu......"); /*按任一键进入主菜单*/getch(); /*从键盘读取一个字符,但不显示于屏幕*/clrscr(); /*清屏*/printf("********************************************************************************\n");printf("\t\t Welcome to\n");printf("\n\t\t The student score manage system\n");printf("*************************************MENU***************************************\n");printf("\t\t\t1. Enter the record\n"); /*输入学生成绩记录*/printf("\t\t\t2. Print the record\n"); /*显示*/printf("\t\t\t3. Search record on name\n"); /*寻找*/printf("\t\t\t4. Delete a record\n"); /*删除*/printf("\t\t\t5. Sort to make new a file\n"); /*排序*/printf("\t\t\t6. Insert record to list\n"); /*插入*/printf("\t\t\t7. Save the file\n"); /*保存*/printf("\t\t\t8. Load the file\n"); /*读取*/printf("\t\t\t9. Quit\n"); /*退出*/printf("\n\t\t Made by Hu Haihong.\n");printf("********************************************************************************\n");printf("\t\t\t\t%d\\%d\\%d\n",d.da_year,d.da_mon,d.da_day); /*显示当前系统日期*/do{ printf("\n\t\t\tEnter your choice(1~9):"); scanf("%d",&n;); }while(n9); /*如果选择项不在1~9之间则重输*/return(n); /*返回选择项,主函数根据该数调用相应的函数*/}/*输入函数*/STUDENT *create(){int i,s;STUDENT *head=NULL,*p; /* 定义函数.此函数带回一个指向链表头的指针*/clrscr();for(;;) {p=(STUDENT *)malloc(LEN); /*开辟一个新的单元*/if(!p) /*如果指针p为空*/{printf("\nOut of memory."); /*输出内存溢出*/return (head); /*返回头指针,下同*/} printf("Enter the num(0:list end):"); scanf("%s",p->num); if(p->num[0]=="0") break; /*如果学号首字符为0则结束输入*/printf("Enter the name:"); scanf("%s",p->name); printf("Please enter the %d scores\n",3); /*提示开始输入成绩*/s=0; /*计算每个学生的总分,初值为0*/for(i=0;iscore[i]); if(p->score[i]score[i]>100) /*确保成绩在0~100之间*/printf("Data error,please enter again.\n"); }while(p->score[i]score[i]>100); s=s+p->score[i]; /*累加各门成绩*/} p->sum=s; /*将总分保存*/p->average=(float)s/3; /*先用强制类型转换将s转换成float型,再求平均值*/p->order=0; /*未排序前此值为0*/p->next=head; /*将头结点做为新输入结点的后继结点*/head=p; /*新输入结点为新的头结点*/} return(head); }/* 显示全部记录函数*/void print(STUDENT *head){int i=0; /* 统计记录条数*/STUDENT *p; /*移动指针*/clrscr();p=head; /*初值为头指针*/printf("\n************************************STUDENT************************************\n");printf("-------------------------------------------------------------------------------\n");printf("| Rec | Num | Name | Sc1 | Sc2 | Sc3 | Sum | Ave | Order |\n");printf("-------------------------------------------------------------------------------\n");while(p!=NULL) { i++; printf("| %3d | %4s | %-4s | %3d | %3d | %3d | %3d | %4.2f | %-5d|\n", i, p->num,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order); p=p->next; }printf("-------------------------------------------------------------------------------\n");printf("**************************************END**************************************\n");}/*查找记录函数*/void search(STUDENT *head){STUDENT *p; /* 移动指针*/char s[5]; /*存放姓名用的字符数组*/clrscr();printf("Please enter name for searching.\n");scanf("%s",s);p=head; /*将头指针赋给p*/while(strcmp(p->name,s) && p != NULL) /*当记录的姓名不是要找的,或指针不为空时*/p=p->next; /*移动指针,指向下一结点*/if(p!=NULL) /*如果指针不为空*/{printf("\n*************************************FOUND************************************\n"); printf("-------------------------------------------------------------------------------\n"); printf("| Num | Name | sc1 | sc2 | sc3 | Sum | Ave | Order |\n"); printf("-------------------------------------------------------------------------------\n"); printf("| %4s | %4s | %3d | %3d | %3d | %3d | %4.2f | %-5d|\n", p->num,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order); printf("-------------------------------------------------------------------------------\n"); printf("***************************************END**************************************\n"); } else printf("\nThere is no num %s student on the list.\n",s); /*显示没有该学生*/}/*删除记录函数*/STUDENT *delete(STUDENT *head){int n;STUDENT *p1,*p2; /*p1为查找到要删除的结点指针,p2为其前驱指针*/char c,s[6]; /*s[6]用来存放学号,c用来输入字母*/clrscr();printf("Please enter the deleted num: ");scanf("%s",s);p1=p2=head; /*给p1和p2赋初值头指针*/while(strcmp(p1->num,s) && p1 != NULL) /*当记录的学号不是要找的,或指针不为空时*/{p2=p1; /*将p1指针值赋给p2作为p1的前驱指针*/p1=p1->next; /*将p1指针指向下一条记录*/}if(strcmp(p1->num,s)==0) /*学号找到了*/{printf("**************************************FOUND************************************\n"); printf("-------------------------------------------------------------------------------\n"); printf("| Num | Name | sc1 | sc2 | sc3 | Sum | Ave | Order |\n"); printf("-------------------------------------------------------------------------------\n"); printf("| %4s | %4s | %3d | %3d | %3d | %3d | %4.2f | %-5d|\n", p1->num,p1->name,p1->score[0],p1->score[1],p1->score[2],p1->sum,p1->average,p1->order); printf("-------------------------------------------------------------------------------\n"); printf("***************************************END**************************************\n"); printf("Are you sure to delete the student Y/N ?"); /*提示是否要删除,输入Y删除,N则退出*/for(;;) {scanf("%c",&c;); if(c=="n"||c=="N") break; /*如果不删除,则跳出本循环*/if(c=="y"||c=="Y") { if(p1==head) /*若p1==head,说明被删结点是首结点*/head=p1->next; /*把第二个结点地址赋予head*/else p2->next=p1->next; /*否则将一下结点地址赋给前一结点地址*/n=n-1; printf("\nNum %s student have been deleted.\n",s); printf("Don"t forget to save.\n");break; /*删除后就跳出循环*/} } } else printf("\nThere is no num %s student on the list.\n",s); /*找不到该结点*/return(head);}/*排序函数*/STUDENT *sort(STUDENT *head){int i=0; /*保存名次*/STUDENT *p1,*p2,*t,*temp; /*定义临时指针*/temp=head->next; /*将原表的头指针所指的下一个结点作头指针*/head->next=NULL; /*第一个结点为新表的头结点*/while(temp!=NULL) /*当原表不为空时,进行排序*/{ t=temp; /*取原表的头结点*/temp=temp->next; /*原表头结点指针后移*/p1=head; /*设定移动指针p1,从头指针开始*/p2=head; /*设定移动指针p2做为p1的前驱,初值为头指针*/while(t->averageaverage&&p1;!=NULL) /*作成绩平均分比较*/{ p2=p1; /*待排序点值小,则新表指针后移*/p1=p1->next; } if(p1==p2) /*p1==p2,说明待排序点值大,应排在首位*/{ t->next=p1; /*待排序点的后继为p*/head=t; /*新头结点为待排序点*/} else /*待排序点应插入在中间某个位置p2和p1之间,如p为空则是尾部*/{ t->next=p1; /*t的后继是p1*/p2->next=t; /*p2的后继是t*/} }p1=head; /*已排好序的头指针赋给p1,准备填写名次*/while(p1!=NULL) /*当p1不为空时,进行下列操作*/{ i++; /*结点序号*/p1->order=i; /*将结点序号赋值给名次*/p1=p1->next; /*指针后移*/}printf("Sorting is sucessful.\n"); /*排序成功*/return (head);}/*插入记录函数*/STUDENT *insert(STUDENT *head,STUDENT *newnode){STUDENT *p0,*p1,*p2;int n,sum1,i;p1=head; /*使p1指向第一个结点*/p0=newnode; /*p0指向要插入的结点*/printf("\nPlease enter a newnode record.\n"); /*提示输入记录信息*/printf("Enter the num:");scanf("%s",newnode->num);printf("Enter the name:");scanf("%s",newnode->name);printf("Please enter the %d scores.\n",3);sum1=0; /*保存新记录的总分,初值为0*/for(i=0;iscore[i]); if(newnode->score[i]>100||newnode->score[i]score[i]>100||newnode->score[i]score[i]; /*累加各门成绩*/}newnode->sum=sum1; /*将总分存入新记录中*/newnode->average=(float)sum1/3;newnode->order=0;if(head==NULL) /*原来的链表是空表*/{head=p0;p0->next=NULL;} /*使p0指向的结点作为头结点*/else {while((p0->averageaverage)&&(p1->next!=NULL)) {p2=p1; /*使p2指向刚才p1指向的结点*/p1=p1->next; /*p1后移一个结点*/} if(p0->average>=p1->average) {if(head==p1)head=p0; /*插到原来第一个结点之前*/else p2->next=p0; /*插到p2指向的结点之后*/p0->next=p1;} else {p1->next=p0;p0->next=NULL;} /*插到最后的结点之后*/}n=n+1; /*结点数加1*/head=sort(head); /*调用排序的函数,将学生成绩重新排序*/printf("\nStudent %s have been inserted.\n",newnode->name); printf("Don"t forget to save the newnode file.\n");return(head);}/*保存数据到文件函数*/void save(STUDENT *head){FILE *fp; /*定义指向文件的指针*/STUDENT *p; /* 定义移动指针*/char outfile[10];printf("Enter outfile name,for example c:\\score\n");scanf("%s",outfile);if((fp=fopen(outfile,"wb"))==NULL) /*为输出打开一个二进制文件,为只写方式*/{ printf("Cannot open the file\n"); return; /*若打不开则返回菜单*/}printf("\nSaving the file......\n");p=head; /*移动指针从头指针开始*/while(p!=NULL) /*如p不为空*/{ fwrite(p,LEN,1,fp); /*写入一条记录*/p=p->next; /*指针后移*/}fclose(fp); /*关闭文件*/printf("Save the file successfully!\n");}/* 从文件读数据函数*/STUDENT *load(){STUDENT *p1,*p2,*head=NULL; /*定义记录指针变量*/FILE *fp; /* 定义指向文件的指针*/char infile[10];printf("Enter infile name,for example c:\\score\n");scanf("%s",infile);if((fp=fopen(infile,"rb"))==NULL) /*打开一个二进制文件,为只读方式*/{ printf("Can not open the file.\n"); return(head); }printf("\nLoading the file!\n");p1=(STUDENT *)malloc(LEN); /*开辟一个新单元*/if(!p1) { printf("Out of memory!\n"); return(head); }head=p1; /*申请到空间,将其作为头指针*/while(!feof(fp)) /*循环读数据直到文件尾结束*/{ if(fread(p1,LEN,1,fp)!=1) break; /*如果没读到数据,跳出循环*/p1->next=(STUDENT *)malloc(LEN); /*为下一个结点开辟空间*/if(!p1->next) { printf("Out of memory!\n"); return (head); }p2=p1; /*使p2指向刚才p1指向的结点*/p1=p1->next; /*指针后移,新读入数据链到当前表尾*/}p2->next=NULL; /*最后一个结点的后继指针为空*/fclose(fp);printf("You have success to read data from the file!\n");return (head);}

Q6:C语言程序:编写程序,统计特定字母的个数4要求用指针编写5谢谢!!!

#include void main(){ char str[50], ch, *p; int count=0; printf("输入字符串:\n"); gets(str); printf("输入要统计的的字母: "); ch = getchar(); for(p=str; *p != "\0"; p++) if(*p==ch) count++; printf("字母%c的个数为:%d\n", ch, count);}

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