#include<stdio.h>int main (){    printf ("*\n");    printf ("**\n");    printf ("***\n");    printf ("****\n");    printf ("*****\n");    printf ("******\n");    printf ("*******\n");    printf ("********\n");    printf ("*********\n");    printf ("**********");}

#include<stdio.h>int main(void){    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");    printf("**********\n");}

#include<stdio.h>int main(void){   printf("**********\n");        printf("*********\n");    printf("********\n");    printf("*******\n");    printf("******\n");    printf("*****\n");    printf("****\n");    printf("***\n");    printf("**\n");    printf("*\n");}

#include<stdio.h>
int main()
{
char score;
scanf("%c",&score);
switch (score)
{
case ‘A‘:
printf("100~90");
break;

case ‘B‘:
printf("89~80");
break;

case ‘C‘:
printf("79~70");
break;

case ‘D‘:
printf("69~60");
break;

case ‘E‘:
printf("59~0");
break;

default:
printf("输入有误");
break; }
return 0;
}

#include<stdio.h>int main()//计算华氏温度100°F对应的摄氏温度{    int F=100;    int C;    printf("C=%d",C=5*(F-32)/9);    return 0;}

#include<stdio.h>int main()//计算华氏温度100°F对应的摄氏温度{    int t=3;    int a=10;    int s;    printf("s=%d",s=0.5*a*t*t);    return 0;}

#include<stdio.h>int main(){    int a=152;    int b;    int c;    int d;    b=a%10;    c=(a%100-b)*0.1;    d=a/100 ;    printf("个位数=%d\n",b);

    printf("十位数=%d\n",c); 

    printf("百位数=%d\n",d); 

return 0; }

#include<stdio.h>#include<math.h>int main(){    double x;    double y;    scanf("%lf",&x);    if(x>=0)       y=sqrt(x);    else        y=pow(x+1,2)+2*x+1/x;    printf("f(x)=%f",y);    return 0;}

#include<stdio.h>#include<math.h>int main(){   int money,year;    double rate,interest;    printf("请分别输入存款金额、存期、年利率: ");    scanf("%d %d %lf",&money,&year,&rate );   interest=money*pow(1+rate,year)-money;    printf("interest=%f\n",interest);    return 0;}

#include<stdio.h>int main(){   int a;   double b;   scanf ("%d",&a);   if(a<=50)   {b=a*0.53;}   else   {b=50*0.53+(a-50)*0.05;}   printf ("%lf",b);   }