#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;
int i;
printf("input the year");
scanf("%d",&year);
if(year % 400 == 0){
printf("year:%d,month:2,days:29",year);
}else if(year % 100 == 0){
printf("year:%d,month:2,days:28",year);
}else if(year % 4 == 0){
printf("year:%d,month:2,days:29",year);
}else
printf("year:%d,month:2,days:28",year);
return 0;
}
#include<stdio.h>
int main(){
int a,b,c;
scanf("%d%d%d",&a,&b,&c);
if(a+b<=c||a+c<=b||b+c<=a)
printf("不能构成三角形");
else if(a==b&&b==c)
printf("这是一个等边三角形");
else if(a==b||b==c||a==c)
printf("这是一个等腰三角形");
else if(a*a+b*b==c*c||a*a+c*c==b*b||b*b+c*c==a*a)
printf("这是一个直角三角形");
else
printf("这是一个一般三角形");
}
#include<stdio.h>
double main(){
double a,rate,tax,profit;
scanf("%lf",&a);
if(a<500)
rate = 0;
else if(a<1000)
rate = 0.05;
else if(a<2000)
rate = 0.08;
else if(a<5000)
rate = 0.10;
else
rate = 0.15;
tax = rate*a;
profit = a-tax;
printf("a=%lf rate=%lf tax=%lf profit=%lf\n",a,rate,tax,profit);
}
#include<stdio.h>
double main(){
double a,rate,tax,profit;
int t;
scanf("%lf",&a);
t = a/500;
switch(t)
{
case 0:rate=0;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;break;
}
tax = rate*a;
profit = a-tax;
printf("a=%f rate=%f tax=%f profit=%f\n",a,rate,tax,profit);
}
原文：https://www.cnblogs.com/p201821440016/p/10750206.html