#include
int main()//三角
{
printf("*\n");
printf("**\n");
printf("***\n");
printf("****\n");
printf("*****\n");
printf("******\n");
printf("*******\n");
printf("********\n");
printf("*********\n");
printf("**********\n");
}
#include
int main()//矩形
{
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
printf("**********\n");
}
#include
int main()//倒三角
{
printf("**********\n");
printf("*********\n");
printf("********\n");
printf("*******\n");
printf("******\n");
printf("****\n");
printf("****\n");
printf("***\n");
printf("**\n");
printf("*\n");
}
#include
int main()//求152个十百位
{
int a=152;
int b;
int c;
int d;
b=a/100;
c=(a/10)%10;
d=a%10;
printf("%d %d %d",b,c,d);
}
#include
int main()//五级制成绩
{
char score;
scanf("%c",&score);
switch (score)
{
case 'A':
printf("90~100");
break;
case 'B':
printf("80~89");
break;
case 'C':
printf("70~79");
break;
case 'D':
printf("60~69");
break;
case 'E':
printf("0~59");
break;
}
}
#include
int main()//华氏温度转摄氏温度
{
int f;
int c;
printf("输入华氏温度: ");
scanf("%d",&f);
c=5*(f-32)/9;
printf("%d",c);
}
#include
#include
int main()//100米小球落下
{
int g=10;
int t=3;
double h;
h=pow(t,2)*1/2*g;
printf("%f\n",h);
}
#include
#include
int main() //分段函数
{
double x;
double y;
printf("请输入一个值:");
scanf("%lf",&x);
if(x>=0)
y=sqrt(x);
else
y=pow(x+1,2)+2*x+1/x;
printf("f(x)=%.2f",y);
}
#include
#include
int main()//计算存款利息
{
int money;
int year;
double rate;
double interest;
printf("输入存款金额: ");
scanf("%d",&money);
printf("输入存期: ");
scanf("%d",&year);
printf("输入年利率: ");
scanf("%lf",&rate);
interest=money*pow(1+rate,year)-money;
printf("interest=%.2f\n",interest);
}
#include
int main()//阶梯电价
{
float n;
printf("月用电量: ");
scanf("%f",&n);
if(n>50)
printf("月电费:%f\n",50*0.53+(n-50)*(0.53+0.05));
else
printf("月电费:%f\n",n*0.53);
}