#include<stdio.h>
int main()
{
char a,b,c,d,e;
a=getchar();
b=getchar();
c=getchar();
d=getchar();
e=getchar();
putchar(a);
putchar(b);
putchar(c);
putchar(d);
putchar(e);
return 0;
}
#include<stdio.h>
int main()
{
int year;
printf("请输入一个年份:");
scanf("%d",&year);
if(year%4 == 0||(year%400==0&&year%100 !=0))
{
printf("%d年2月有29天\n",year);
}
else
printf("%d年2月有28天\n",year);
return 0;
}
#include"stdio.h"
#include<math.h>
int main()
{
int a,b,c;
printf("请输入三角形的三边:");
scanf("%d%d%d",&a,&b,&c);
if((a+b)>c&&(b+c)>a&&(c+a)>b)
{
if(a==b&&b==c&&a==c)
printf("全等三角形");
else if(a==b||b==c||a==c)
printf("等腰三角形");
else if((pow(a,2)+pow(b,2))==pow(c,2)||(pow(c,2)+pow(b,2))==pow(a,2)||(pow(a,2)+pow(c,2))==pow(b,2))
printf("直角三角形");
else if(1)
printf("一般三角形");
}
else
printf("不能构成三角形");
return 0;
}
#include<stdio.h>
#include<math.h>
int main()
{
double a,rate,tax,profit;
scanf("%lf",&a);
if(a>=5000)
rate = 0.15;
else if(a >= 2000)
rate = 0.10;
else if(a >= 1000)
rate = 0.08;
else if(a >= 500)
rate = 0.05;
else if(a < 500)
rate = 0;
tax = a - (a*rate);
profit = a - tax;
printf("a = %lf \nrate=%lf \ntax=%lf \nprofit=%lf\n",a,rate,tax,profit);
return 0;
}
#include<stdio.h>
#include<math.h>
int main()
{
double a,rate,tax,profit;
int b;
scanf("%lf",&a);
b = a/500;
switch(b){
case 0: rate = 0.00; break;
case 1: rate = 0.05; break;
case 2: rate = 0.08; break;
case 3: rate = 0.08; break;
case 4: rate = 0.10; break;
case 5: rate = 0.10; break;
case 6: rate = 0.10; break;
case 7: rate = 0.10; break;
case 8: rate = 0.10; break;
case 9: rate = 0.10; break;
default: rate = 0.15;
}
tax = a - (a*rate);
profit = a - tax;
printf("a = %lf \nrate=%lf \ntax=%lf \nprofit=%lf\n",a,rate,tax,profit);
return 0;
}