雙行道編程題
㈠ 兩道C++編程題
#include <iostream>
using namespace std;
int main()
{
int i=1,a,b,c,d,e,f;
for (i=1;i<=30;i++)
{
a=i+1;
b=a+2;
c=b+3;
d=c+4;
e=d+5;
f=e+6;
if (i+a+b+c+d+e+f==105)
cout <<"號碼為"<<i <<a <<b <<c <<d <<e <<f <<endl;
}
return 0;
}
㈡ 兩道java編程題
題一、
package Test;
import java.util.Scanner;
public class FirstOne {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("請輸入a");
while (scanner.hasNext()) {
double x = 0;
double y = 0;
// System.out.println("請輸入a");
int a = scanner.nextInt();
System.out.println("請輸入b");
int b = scanner.nextInt();
System.out.println("請輸入c");
int c = scanner.nextInt();
System.out.println("請輸入d");
int d = scanner.nextInt();
System.out.println("請輸入e");
int e = scanner.nextInt();
System.out.println("請輸入f");
int f = scanner.nextInt();
int tep = a * d - b * c;
if (tep == 0) {
System.out.println("方程無解");
} else {
double x1 = e * d - b * f;
double y1 = a * f - e * c;
x = x1 / tep;
y = y1 / tep;
System.out.println("x=" + x);
System.out.println("y=" + y);
}
System.out.println("如果還要計算，請輸入a");
}
}
}
題二、可以用遞歸，但是我著急回家寫的bug就換了一種有點麻煩的，等回家給你追加遞歸的。
package Test;
import java.util.Scanner;
public class NextOne {
public static void main(String[] args) {
Scanner scanner=new Scanner(System.in);
System.out.println("請輸入展示行數n");
int n=scanner.nextInt();
System.out.println("i\t\tm(i)");
for (int i = 1; i <=n; i++) {
System.out.println(i + "\t\t" + getNum(i));
}
}
public static double num(int n){
return n/(double)(n+1);
}
public static double getNum(int n){
double sum=0;
for (int i = 1; i <= n; i++) {
sum+=num(i);
}
return sum;
}
}
㈢ 兩道C語言編程題，運行結果有問題或者不能運行，求高手指出！！謝謝！
while(s)
{
a[i++]=s%10;s/=10;
}
第一次循環結束後a[0]=5,s=0,i=1,然後退出循環列印a[0]=5,還有什麼不清楚的么？
第2個你范的錯誤是不要用「，」作為分隔符啊。scanf里沒有指定用"，"做分隔符你拿這個做什麼輸入分隔符啊
㈣ 兩道C語言編程題，求答案。。。求幫忙
//第一題
#include <stdio.h>
#include <string.h>
int main(void)
{
char f_name[24];
char str[100];
printf("please enther the file name:");
scanf("%s",str);
sprintf(f_name,"%s.txt",str);
FILE *fp=fopen(f_name,"w+");
printf("please enther the string:");
scanf("%s",str);
fprintf(fp,"%s%d",str,strlen(str));
return 0;
}
//第二題
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef struct {
int num;
char name[20];
int math;
int chin;
int eng;
int avg;
}student;
void cal_avg(student *stu)
{
int i=0;
for (i;i<5;i++)
{
stu[i].avg=(stu[i].chin+stu[i].math+stu[i].eng)/3;
}
}
int output(student *stu)
{
FILE *fp=fopen("stud.txt","w+");
if (fp==NULL)
{
printf("can't open file!");
return -1;
}
fwrite(stu,sizeof(student),5,fp);
return 1;
}
void input(student *stu)
{
int i=0;
for (i;i<5;i++)
{
stu[i].num=i+1;
printf("please enther the %dth student's name:",i+1);
scanf("%s",stu[i].name);
printf("please enther the %dth student's math grade:",i+1);
scanf("%d",&stu[i].math);
printf("please enther the %dth student's chin grade:",i+1);
scanf("%d",&stu[i].chin);
printf("please enther the %dth student's eng grade:",i+1);
scanf("%d",&stu[i].eng);
printf("/********************************************/\n");
}
}
int main(void)
{
student stu[5];
input(stu);
cal_avg(stu);
output(stu);
return 0;
}
㈤ 求這道編程題的過程。輸入有兩行。第1行是一個整數n（2≤n≤100000），表示一共有n個同學。
#include<bits/stdc++.h>
usingnamespacestd;
intn,a[200001];
intmain(){
scanf("%d",&n);
for(inti=1;i<=n;i++)scanf("%d",&a[i]);
sort(a+1,a+n+1);
for(inti=1;i<=n;i++)printf("%d",a[i]);
}
㈥ 兩道編程題
作業都是一樣的？，改改類名和類成員名吧還有，前面有一個有同問了
publicclassTest1{
publicstaticvoidmain(String[]args){
//----TreeSet--------------
Set<Student>set=newTreeSet<Student>();
addTestData(set);
printData(set);
//---HashSet-----------
set=newHashSet<Student>();
addTestData(set);
printData(set);
}
publicstaticvoidaddTestData(Setset){
Students1=newStudent("d_name1",30);
Students2=newStudent("a_name2",20);
Students3=newStudent("c_name3",26);
Students4=newStudent("b_name4",24);
Students5=newStudent("c_name1",30);
Students6=newStudent("c_name1",30);
System.out.println(set.add(s1)==true?"加入":"重復");
System.out.println(set.add(s2)==true?"加入":"重復");
System.out.println(set.add(s3)==true?"加入":"重復");
System.out.println(set.add(s4)==true?"加入":"重復");
System.out.println(set.add(s5)==true?"加入":"重復");
System.out.println(set.add(s6)==true?"加入":"重復");
}
publicstaticvoidprintData(Setset){
for(Iterator<Student>iterator=set.iterator();iterator.hasNext();){
Studentstudent=iterator.next();
System.out.println(set.getClass().getName()+"姓名:"+student.name
+"年齡:"+student.age);
}
}
}
{
intage;
Stringname;
Student(Stringname,intage){
this.age=age;
this.name=name;
}
publicbooleanequals(Objectobj){
//TODOAuto-generatedmethodstub
Students=(Student)obj;
return(age==s.age&&name.equals(s.name));
}
publicinthashCode(){
//TODOAuto-generatedmethodstub
returnage*name.hashCode();
}
publicintcompareTo(Objectobj){
Studentstu=(Student)obj;
//先按年齡排，後按姓名排
intnum=newInteger(this.age).compareTo(newInteger(stu.age));
returnnum==0?this.name.compareTo(stu.name):num;
}
}publicclassTest3{
publicstaticvoidmain(String[]args){
try{
SimpleDateFormatsf=newSimpleDateFormat("yyyy-MM-dd");
printDate(sf.parse("2013-05-13"),sf.parse("2013-08-13"));
}catch(ParseExceptione){
System.out.println("輸入的日期格式錯誤");
}
}
publicstaticvoidprintDate(Dated1,Dated2){
CalendarstartDate=Calendar.getInstance();//開始日期
startDate.setTime(d1);
CalendarminDate=Calendar.getInstance();//允許的最小日期
minDate.setTime(d2);
minDate.add(Calendar.MONTH,-3);
if(d2.getTime()>System.currentTimeMillis()){
System.out.println("結束時間不能大於當前時間");
return;
}elseif(d1.getTime()>d2.getTime()){
System.out.println("開始時間不能大於結束時間");
return;
}
if(startDate.getTimeInMillis()<minDate.getTimeInMillis()){
System.out.println("開始日期與結束日期不能超過3個月");
return;
}
System.out.println("在范圍內");
}
}
㈦ 關於兩道C語言編程題
#include
"stdio.h"
#include
"conio.h"
#define
N(n)
(1+(n))*(n)/2
//第一題
#define
Max(a,b)
(a)>(b)?(a):(b)
//第二題
//這種題目是要你注意給宏加()，防止使用代數式時出錯吧
int
main()
{
int
a,b;
int
n;
scanf("%d",&n);
printf("Add
form
1
to
%d
==%d\n",n,N(n));
printf("Please
Input
Two
Number\n");
scanf("%d",&a);
scanf("%d",&b);
printf("Max
Number
You
Input
Is:
%d\n",Max(a,b));
getch();
return
0;
}
㈧ 求大神幫我做兩道C語言編程習題~~
1#include<stdio.h>
#include<math.h>
void main()
{
double x,y,z;
printf("請輸入x的值：");
scanf("%lf",&x);
printf("請輸入y的值：");
scanf("%lf",&y);
if(x>0&&y>0)
z=log(x)+log(y);
else if(x<0&&y>0)
z=sin(x)+sin(y);
else if(x<0&&y<0)
z=exp(2*x)+exp(3*y);
else
z=tan(x+y);
printf("z=%lf\n",z);
}
2、#include<stdio.h>
void main()
{
float money=0;
int year=1;
printf("請輸入本金：");
scanf("%f",&money);
f: printf("請輸入期限：");
scanf("%d",&year);
while(year<1)
goto f;
switch(year)
{
case 1:money=money+money*12*0.063;break;
case 2:money=money+money*24*0.066;break;
case 3:money=money+money*36*0.069;break;
case 4:money=money+money*48*0.069;break;
case 5:money=money+money*60*0.075;break;
case 6:money=money+money*72*0.075;break;
case 7:money=money+money*84*0.075;break;
case 8:money=money+money*96*0.084;break;
default:money=money+money*12*year*0.084;break;
}
printf("您能得到的利息和本金合計為%f",money);
}
㈨ C語言中兩道編程題求救!
第一題：
#include<stdio.h>
//定義一個結構，記錄一個學生的信息
typedef struct{
char num[10];
char name[10];
int score[3];
} STUDENT;
int main()
{
FILE* file; //文件指針，用於打開文件和將數據寫入文件的一個介面
STUDENT student[5]; //5個學生
int i,j;
double ave[3]; //計算各門課平均分用的
printf("請依次輸入5個學生的信息：\n");
for (i=0; i<5; i++) //輸入信息
{
scanf("%s%s",student[i].num,student[i].name);
for (j=0; j<3; j++) scanf("%d",&student[i].score[j]);
}
for (i=0; i<3; i++) ave[i]=0;
for (j=0; j<5; j++)
for (i=0; i<3; i++) ave[i]=ave[i]+student[j].score[i]; //先計算總分
for (i=0; i<3; i++) ave[i]=ave[i]/5.0; //算平均分
file=fopen("ZK1","w"); //打開一個文件，文件名叫ZK1
//下面使用fprintf將信息寫入磁碟文件中
for (i=0; i<5; i++)
{
fprintf(file,"%s %s ",student[i].num,student[i].name);
for (j=0; j<3; j++) fprintf(file,"%d ",student[i].score[j]);
fprintf(file,"\n");
}
//寫入三門課的平均成績
fprintf("三門課的平均成績分別是：");
for (i=0; i<3; i++) fprintf(file,"%lf ",ave[i]);
fclose(file); //關閉，保存文件
return 0;
}
至於第二題的程序
第22行，你寫的是 scanf("%f',&s[i].avgcj);
你把%f後面的雙引號打成單引號了
另外還有倒數第二行，你寫的是 printf("sname=%s sum=%f",s[j].sname sum);
在s[j].sname和sum中間，你忘記打個逗號了
另外，你的struct定義寫得不對，應該這樣寫：
typedef struct
{
int sno;
char sname[20];
float ywcj;
float sxcj;
float yucj;
float avgcj;
}student;
student s[5];