求一道C语言上机题的答案，谢谢 求这道c语言解答，多谢
\u4e00\u9053c\u8bed\u8a00\u9898\uff0c\u6c42\u8f93\u51fa\u7ed3\u679c\uff0c\u6c42\u8fc7\u7a0b\uff0c\u8c22\u8c22\u7b54\u6848\u662f2 0 0,\u3002
\u521a\u5f00\u59cb\u65f6s t w \u90fd\u662f0\uff1b
c=3\u662f\u5927\u4e8e0\u7684\uff0c\u6240\u4ee5s=a+b=2\uff1b
a=-10\u6210\u7acb\uff0c\u4f46c=3<=0\u4e0d\u6210\u7acb\uff0c\u6240\u4ee5\u4e0d\u6267\u884cw=a-b\uff1b
\u56e0\u4e3aif\uff08a0) w=a-b\u548celse t=c\u4e0d\u6267\u884c\uff1b
\u6240\u4ee5s\u662f2\uff0ct\u548cw\u90fd\u662f0
#include
int main()
{int i,j,t,a[15],s=0,n=0;
float av;
for(i=0;i<15;i++)
{scanf("%d",&a[i]);
s+=a[i];
}
av=s/15.0;
for(i=0;i<15;i++)
if(a[i]<av)n++;
for(i=0;i<14;i++)
for(j=0;j<14-i;j++)
if(a[j]>a[j+1])
{t=a[j];a[j]=a[j+1];a[j+1]=t;}
printf("\u603b\u6210\u7ee9=%d\n\u5e73\u5747\u6210\u7ee9=%.2f\n",s,av);
for(i=0;i<15;i++)
printf("%d ",a[i]);
printf("\n\u4f4e\u4e8e\u5e73\u5747\u5206\u4eba\u6570\uff1a%d\n",n);
return 0;
}
以前我写过类似的，代码还在，你自己看看差啥自己补充吧
有什么不懂的可以加QQ287556003，注明百度知道求助
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define MAXN 35
#define MAX_ACADEMY 256
#define MAX_SUBJECT 256
#define MAX_GRADE 256
#define MAX_NAME 256
typedef struct student //学生信息
{
int no,term,year;
char academy[MAX_ACADEMY];
char subject[MAX_SUBJECT];
char name[MAX_NAME];
char grade[MAX_GRADE];
double chinese;
double math;
double english;
double mark_ave;
double mark_tot;
} STUDENT;
/*--------------------输入信息子程序-----------------*/
void input(STUDENT *data, int *len)
{
int no;
putchar('\n');
printf("%s\n", "请输入新数据，若需要保存数据并返回主菜单请输入-1.");
putchar('\n');
printf("%s\n","格式：");
putchar('\n');
printf("%s\n","学号 学年度 学期 学院 专业 班级 姓名 语文 数学 英语");
putchar('\n');
printf("如：\n");
putchar('\n');
printf("0805074200 2009 1 五院 通信工程 二班 冯施主 100 100 100\n");
putchar('\n');
scanf("%d",&no);
while(no!=-1)
{
data[*len].no=no;
scanf("%d %d %s %s %s %s %lf %lf %lf",&data[*len].year, &data[*len].term, data[*len].academy, data[*len].subject, data[*len].grade, data[*len].name, &data[*len].chinese, &data[*len].math, &data[*len].english);
putchar('\n');
data[*len].mark_ave=(data[*len].english+data[*len].math+data[*len].chinese)/3.0;
data[*len].mark_tot=data[*len].english+data[*len].math+data[*len].chinese;
(*len)++;
scanf("%d", &no);
}
}
/*----------输出信息子程序-----------------*/
void output(STUDENT *data, int len)
{
int i;
putchar('\n');
putchar('\n');
printf("%8s","学号");
putchar('\0');
putchar('\0');
printf("%8s","学年度");
printf("%8s","学期");
printf("%8s","学院");
printf("%8s","专业");
printf("%8s","班级");
printf("%8s","姓名");
printf("%8s","语文");
printf("%8s","数学");
printf("%10s","英语");
printf("%12s","平均分");
printf("%10s","总分");
putchar('\n');
for (i=0;i<80;i++)
putchar('=');
putchar('\n');
for (i=0;i<len;i++)
{
putchar('\n');
putchar('\n');
printf("%8d",data[i].no);
printf("%8d",data[i].year);
printf("%8d",data[i].term);
printf("%8s",data[i].academy);
putchar('\0');
putchar('\0');
printf("%8s",data[i].subject);
printf("%8s",data[i].grade);
printf("%8s",data[i].name);
printf("%8.1lf",data[i].chinese);
printf("%8.1lf",data[i].math);
printf("%10.1lf",data[i].english);
printf("%12.1lf",data[i].mark_ave);
printf("%10.1lf",data[i].mark_tot);
putchar('\n');
putchar('\n');
}
for (i=0;i<80;i++)
putchar('=');
putchar('\n');
putchar('\n');
printf("显示完毕！");
putchar('\n');
putchar('\n');
printf("返回主菜单请按回车");
getchar();
getchar();
putchar('\n');
}
/*------------排序子程序-------------*/
void sort(STUDENT *data, int len)
{
int i,j;
STUDENT temp;
for (i=0;i<len-1;i++)
for(j=i+1;j<len;j++)
if(data[i].mark_ave>data[j].mark_ave)
{
temp=data[i];
data[i]=data[j];
data[j]=temp;
}
putchar('\n');
printf("%s\n","现在您可以按回车返回并输入“2”查看平均分排序结果");
putchar('\n');
getchar();
getchar();
putchar('\n');
putchar('\n');
}
/*-------------查找子程序----------------*/
void find(STUDENT *data, int len)
{
int find_no, result,i, find_year,find_term;
lab: result=0;
printf("%s\n","请输入需要查找的学生的学号，学年度，学期。返回主菜单请输入-1");
putchar('\n');
printf("%s\n","格式：0805074000 2009 1");
putchar('\n');
scanf("%d",&find_no);
putchar('\n');
if (find_no==-1)return; /*exit the fine sub program*/
else scanf("%d %d",&find_year,&find_term);
while((data[result].no!=find_no||data[result].year!=find_year||data[result].term!=find_term)&&result<len) result++;
if (result>=len)
{ putchar('\n');
printf("%s\n", "未查询到相关信息，请按回车返回！");
getchar();
getchar();
putchar('\n');
goto lab;
}
else
{
printf("%s\n","查询信息如下：");
for (i=0;i<80;i++)
putchar('=');
putchar('\n');
printf("%8s","学号");
printf("%8s","学年度");
printf("%8s","学期");
printf("%8s","学院");
putchar('\0');
putchar('\0');
printf("%8s","专业");
printf("%8s","班级");
printf("%8s","姓名");
printf("%8s","英语");
printf("%8s","数学");
printf("%10s","c语言");
printf("%12s","平均分");
printf("%10s","总分");
putchar('\n');
putchar('\n');
printf("%8d",data[result].no);
printf("%8d",data[result].year);
printf("%8d",data[result].term);
printf("%8s",data[result].academy);
printf("%8s",data[result].subject);
printf("%8s",data[result].grade);
printf("%8s",data[result].name);
printf("%8.1lf",data[result].chinese);
printf("%8.1lf",data[result].math);
printf("%10.1lf",data[result].english);
printf("%12.1lf",data[result].mark_ave);
printf("%10.1lf",data[result].mark_tot);
putchar('\n');
putchar('\n');
for (i=0;i<15;i++)
putchar('=');
putchar('\n');
goto lab;
}
}
/*-----------插入子程序---------------*/
void insert(STUDENT *data, int *len)
{
int no,pos;
double chinese,math,english,mark_ave,mark_tot;
int i,term, year;
char academy[MAX_ACADEMY], subject[MAX_SUBJECT], grade[MAX_GRADE] , name[MAX_NAME];
lab:printf("%s\n","请输入新的记录，退出且保存请输入-1.");
putchar('\n');
printf("%s\n","格式：");
putchar('\n');
printf("%s\n", "学号 学年度 学期 学院 专业 班级 姓名 语文 数学 英语");
putchar('\n');
scanf("%d",&no);
if (no==-1)return;
data[*len].no=no;
scanf("%d %d %s %s %s %s %lf %lf %lf",&year, &term, academy,subject,grade,name,&chinese,&math,&english);
mark_ave=(english+math+chinese)/3.0;
mark_tot=english+math+chinese;
pos=0;
while ((data[pos].mark_ave<mark_ave)&&(pos<*len))
pos++;
for (i=*len-1;i>=pos;i--)
data[i+1]=data[i];
data[pos].no=no;
data[pos].year=year;
data[pos].term=term;
strcpy(data[pos].academy, academy);
strcpy(data[pos].subject, subject);
strcpy(data[pos].grade, grade);
strcpy(data[pos].name, name);
data[pos].chinese=chinese;
data[pos].math=math;
data[pos].english=english;
data[pos].mark_ave=mark_ave;
data[pos].mark_tot=mark_tot;
(*len)++;
goto lab;
}
/*----------------删除子程序----------------------*/
void delete_item(STUDENT *data, int *len)
{
int no, i, pos,year,term;
lab: pos=0;
printf("%s\n","输入需要删除的学生的学号，学年度，学期。退出当前菜单请输入-1.");
putchar('\n');
printf("%s\n","格式：0805074200 2009 1");
putchar('\n');
scanf("%d",&no);
putchar('\n');
if (no==-1) return;
else scanf("%d %d",&year,&term);
while((data[pos].no != no||data[pos].year != year||data[pos].term != term)&&(pos < *len) ) pos=pos+1;
if(pos>=*len)
{
printf("%s\n","无记录！");
goto lab;
}
else {
for (i=pos+1;i<*len;i++)
data[i-1]=data[i];
*len=*len-1;
printf("%s\n","已删除对应信息，按回车返回。");
getchar();
getchar();
if (*len==0) {
printf("%s\n","信息库为空！");
putchar('\n');
getchar();
getchar();
}
goto lab;
}
}
/*---------------统计子程序--------------*/
void stat(STUDENT *data, int len)
{
int no_59=0,no_69=0,no_79=0,no_89=0,no_100=0;
int i;
for (i=0;i<len;i++) {
if (data[i].mark_ave<=59.9) no_59++;
else if (data[i].mark_ave<=69.9) no_69++;
else if (data[i].mark_ave<=79.9) no_79++;
else if (data[i].mark_ave<=89.9) no_89++;
else no_100++;
}
for(i=0; i<10; i++)
putchar('=');
putchar('\n');
printf("%10s","分数");
putchar('\0');
putchar('\0');
printf("%10s","0.0-59.9");
putchar('\0');
putchar('\0');
printf("%10s","60.0-69.9");
putchar('\0');
printf("%10s","70.0-79.9");
putchar('\0');
putchar('\0');
printf("%10s","80.0-89.9");
putchar('\0');
putchar('\0');
printf("%10s\t","90.0-100.0");
putchar('\n');
putchar('\n');
printf("%10s","人数");
printf("%10d",no_59);
putchar('\0');
printf("%10d",no_69);
putchar('\0');
printf("%10d",no_79);
putchar('\0');
printf("%10d",no_89);
putchar('\0');
printf("%10d",no_100);
putchar('\n');
for (i=0;i<80;i++)
putchar('=');
putchar('\n');
printf("按回车键返回");
getchar();
getchar();
}
/*-----------------------显示信息子程序-----------------*/
void paint()
{
int i;
printf("%50s\n","中北大学学生成绩管理系统\n");
printf(" 制作者：中北大学信息与通信工程学院08050742班 李超 冯胜勇 吴煊 刘晓华\n");
for (i=0;i<80;i++)
putchar('=');
putchar('\n');
printf(" 1 录入学生成绩 2 显示学生成绩 \n");
printf(" 3 按平均分排序 4 按学号，学年度，学期搜索学生成绩 \n");
printf(" 5 插入学生成绩 6 按学号删除信息 \n");
printf(" 7 按平均分输出统计信息 0 退出系统 \n");
printf(" \n");
for (i=0;i<79;i++)
putchar('=');
putchar('\n');
printf("%s\n","请输入操作对应的序号：");
}
/*--------------主程序----------------*/
void main()
{
STUDENT data[MAXN];
int len=0;
char ctrl_ch;
paint();
scanf("%c", &ctrl_ch);
while (ctrl_ch!='0')
{
switch(ctrl_ch)
{
case '1':
input(data,&len);
break;
case '2':
output(data, len);
break;
case '3':
sort(data,len);
break;
case '4':
find(data,len);
break;
case '5':
insert(data,&len);
break;
case '6':
delete_item(data,&len);
break;
case '7':
stat(data,len);
break;
default:
if(ctrl_ch!='\n') printf("%s\n", "输入错误！");
break;
}
if (ctrl_ch!='\n') paint();
scanf("%c", &ctrl_ch);
}
}
哈哈 楼上的帮你解决啦
绛旓細鍙傝冧竴涓嬫垜鐨勫惂锛歩nclude <stdio.h> include <malloc.h> include <stdlib.h> define LIST_INIT_SIZE 100 define LISTINCREMENT 10 define OVERFLOW -2 define OK 1 define ERROR 0 define ElemType int typedef int Status;typedef struct SqList{ ElemType *elem;int length;int listsize;};int ...
绛旓細if (n > 1)return (n*fun(n-1));return 1;濡傛灉 n>1 鎵ц return (n*fun(n-1)); 鍚﹀垯鎵ц return 1;鍥犱负 main 鍑芥暟閲岃皟鐢ㄧ殑鏄 fun(10); 鎵浠ュ浜 fun 鍑芥暟锛屽叆鍙ｅ弬鏁 n 绛変簬10锛10 澶т簬 1锛屾墍浠ユ墽琛 return (n*fun(n-1)); 鍙堣皟鐢ㄤ簡 fun(9)銆傘傘傚氨杩欐牱涓鐩磋皟鐢ㄥ埌 fun(1...
绛旓細include "stdio.h"include "math.h"main(){ int i;int j=0;for(i=101;i<1000;i++){ if(pow(i%10,3)+pow((i/10)%10,3)+pow(i/100,3)==i){ j++;printf("\n%d",i);} } printf("\n%d",j);getch();} 杩欐瀵逛簡锛岃皟璇曡繃浜嗭紒
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绛旓細绗竴涓 sum =0;绗簩涓 flag==1;绗笁涓 printf("%4d",aa[i]);
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