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1002【入门】编程求解1+2+3+...+n
#include stdio.h int main() { int i, s = 0, n; scanf("%d", n); for(i = 1; i = n; i++) s += i; printf("%d\n", s); return 0; }
JAVA基础编程题
package com.qiu.swing.layoutDemo;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JRootPane;
import javax.swing.JTextField;
/**
*
* @author Qiu
*
*/
public class TextDemo extends JFrame{
final JButton button_show = new JButton("显示");
final JButton button_clear = new JButton("显示");
final JTextField text = new JTextField();
final Container con = this.getContentPane();
public TextDemo() {
this.setTitle("HelloWorld!");
this.setSize(300, 160);
// 居中
this.setLocationRelativeTo(null);
this.setUndecorated(true); // 去掉窗口的装饰
this.setResizable(false);
this.getRootPane().setWindowDecorationStyle(
JRootPane.INFORMATION_DIALOG);// 采用指定的窗口装饰风格
// 文字居中
text.setSize(100, 20);
Box vbox = Box.createVerticalBox();
Box xbox0 = Box.createHorizontalBox();
xbox0.add(text);
xbox0.add(button_show);
xbox0.add(button_clear);
vbox.add(xbox0);
vbox.add(Box.createVerticalStrut(100));
con.setLayout(new BoxLayout(con, BoxLayout.X_AXIS));
con.add(vbox);
button_show.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
text.setText("HelloWorld");
}
});
button_clear.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
text.setText("");
}
});
}
public static void main(String[] args) {
TextDemo home = new TextDemo();
home.setVisible(true);
}
}
基础编程题
LZ想要的是这种答案吧。。。。
//-------------------------------第一题
#include stdio.h
#include "e:\myc\zylib\zylib.h"
STRING GetString(STRING prompt);
double GetReal(STRING prompt);
int main()
{
double bookprice;
STRING bookname;
bookname=GetString("请输入字符串：");
bookprice=GetReal("请输入实数：");
printf("字符串为：%s\n",bookname);
printf("实数为：%.2f\n",bookprice);
}
STRING GetString(STRING prompt)
{
STRING name;
printf("%s",prompt);
name=GetStringFromKeyboard();
return name;
}
double GetReal(STRING prompt)
{
double price;
printf("%s",prompt);
price=GetRealFromKeyboard();
return price;
}
//-------------------------------------第二题
#include stdio.h
#include "e:\myc\zylib\zylib.h"
BOOL IsPrime(int n);
int main()
{
int n;
printf("请输入一个整数:");
scanf("%d",n);
if(n2)
if(IsPrime(n))printf("%d是素数\n",n);
else printf("%d不是素数\n",n);
else printf("数据非法\n");
return 0;
}
BOOL IsPrime(int n)
{
int i;
for(i=2;in;i++)
if(n%i= =0) return FALSE;
return TRUE;
}
//--------------------------------第三题
#include stdio.h
#define TRUE 1
int gcd(int x,int y);
int main()
{
int m,n,max;
printf("请输入两个正整数：");
scanf("%d %d",m,n);
max=gcd(m,n);
printf("最大公约数为：%d\n",max);
return 0;
}
int gcd(int x,int y)
{
int r;
while(TRUE)
{
r=x%y;
if(r==0)break;
x=y;
y=r;
}
return y;
}
//--------------------------------第四题
#include stdio.h
#include "e:\myc\zylib\zylib.h"
typedef enum{sun,mon,tue,thi,wen,fri,sat}WEEKDAY;//定义枚举类型
int GetInteger(STRING prompt);//输入一下整数
int Count(int year,int month);//计算某年某月之前到2007年1月1日的天数
BOOL IsLeapYear(int n);//判断某年是否是闰年
int month_day(int year,int month);//计算某个月的天数
void print(int year,int month,int total);//打印某年某月的日历
void print1(WEEKDAY weekday);//打印某月的第1天
int main()
{
int year,month,total;
year=GetInteger("please input year:");
if(year2007)
PrintErrorMessage(FALSE,"年份小于2007，错误\n");
month=GetInteger("please input month:");
total=Count(year,month);
print(year,month,total);
}
int GetInteger(STRING prompt)
{
int t;
printf("%s",prompt);
t=GetIntegerFromKeyboard();
return t;
}
int Count(int year,int month)
{
int s,i;
s=0;
for(i=2007;iyear;i++)
if(IsLeapYear(i))s+=366;
else s+=365;
for(i=1;imonth;i++)
s+=month_day(year,i);
return s;
}
BOOL IsLeapYear(int n)
{
return n%4==0n%100!=0||n%400==0;
}
int month_day(int year,int month)
{
int day;
switch(month)
{
case 1:
case 3:
case 5:
case 7:
case 9:
case 10:
case 12:day=31;break;
case 2:day=28+IsLeapYear(year);break;
default:day=30;
}
return day;
}
void print(int year,int month,int total)
{
WEEKDAY weekday;
const WEEKDAY first=mon;
int i,day;
printf("%d-%d canlendar\n",year,month);
printf("-----------------------------------\n");
printf(" sun mon tue thi wen fri sat\n");
printf("-----------------------------------\n");
day=month_day(year,month);
for(i=1;i=day;i++)
{
weekday=(WEEKDAY)((total+i+first-1)%7);
if(i==1)print1(weekday);
else if(weekday==sat)
printf("%4d\n",i);
else printf("%4d",i);
}
printf("\n------------------------------------\n");
}
void print1(WEEKDAY weekday)
{
if(weekday==0)printf("%4d",1);
else if(weekday==1)printf("%8d",1);
else if(weekday==2)printf("%12d",1);
else if(weekday==3)printf("%16d",1);
else if(weekday==4)printf("%20d",1);
else if(weekday==5)printf("%24d",1);
else if(weekday==6)printf("%28d\n",1);
}
//---------------------------------------
上面的一些文件路径你自己改了，唉，其实我自己给你写的那些算法更好，。
C语言编程题，初学
#includestdio.h
#includemath.h
main()
{
int x,y,r=0,i=0,n=0,nmin=0;
scanf("%d %d",x,y);
r=x=y?x:y;
for(i=1;i=r;i++){
if((x%i==0) (y%i==0)){
n=i;
}
}
/* 最小公倍数=两数的乘积/最大公约（因）数 */
nmin=x*y/n;
printf("%d ",nmin); /*最小公倍数*/
printf("%d ",n); /*最大公约数*/
}
/*统计字符*/
#includestdio.h
#includemath.h
main()
{
char ch;
int letternum=0,num=0,othernum=0,spacenum=0;
while(1){
scanf("%c",ch);
if((ch=65 ch=90)|| (ch=97 ch=122)){
letternum++;
}
else if(ch=48 ch=57){
num++;
}
else if(ch==32){
spacenum++;
}
else if(ch=='\n'){
break;
}
else {
othernum++;
}
}
printf("%d,%d,%d,%d",letternum,num,spacenum,othernum);
}
/*求阶乘时会溢出*/
#includestdio.h
#includemath.h
main()
{
int n=1,i;
int s=0;
for(i=1;i=20;i++){
n=i*n;
s=s+n;
}
printf("%d",s);
}
/*三个数的立方可以改成公式形式*/
#includestdio.h
#includemath.h
main()
{
int i,num=0;
int n1=0,n2=0,n3=0;
for(i=100;i=999;i++){
n1=i/100;
n2=(i%100)/10;
n3=i%10;
if(i== n1*n1*n1 + n2*n2*n2 + n3*n3*n3){
printf("%d ",i);
}
}
}