#include<stdio.h>int main (){    int a,b,c,t;    printf("输入3个数:");    scanf("%d %d %d",&a,&b,&c);    if(a<b)    {        t=a;a=b;b=t;    }    if(a<c)    {        t=a;a=c;c=t;    }    if(b<c)    {        t=b;b=c;c=t;    }    printf("则它们的顺序是%d %d %d",a,b,c);    return 0;}

#include<stdio.h>int main (){    double a,b,c;     printf("请输入车速和本车道限制速度:");    scanf("%lf %lf",&a,&b);     if(b>a&&b<c)    {         double c=(double)a*(1+0.1);         printf("处罚200元罚款",c);    }         else(a>c)    {         double c=(double)a*(1+0.5);         printf("吊销驾驶证",c);        }   return 0;} 

#include<stdio.h>int main(){    double x,y,z;    printf("请输入行驶总里程：");    scanf("%lf",&x);    printf("请输入等待时间：");    scanf("%lf",&y);        if(x<=3)    {        z=10;    }    if(x>3&&x<=10);    {        z=24+(x-10)*3;    }    if(y<5&&x<=3)    {        z=10;    }    if(y<5&&(x>3&&x<=10))    {        z=24+(x-10)*3;    }    if(y>=5&&x<=3)    {        z=(y/5)*2+10;    }    if(y>=5&&(x>3&&x<=10))    {        z=(y/5)*2+24+(x-10)*3;    }    return 0;}

#include<stdio.h>int main (){    char score;    printf("请输入等级");    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;                                        }    return 0;}

#include<stdio.h>int main(){    int a,b,c;    float p,s;    scanf("%d %d %d",&a,&b,&c);    if(a+b>c||a+c>b||b+c>a)    {        p=(a+b+c)/2;        s=p*(p-a)*(p-b)*(p-c);        printf("s=%f\n",s)    }    else printf("impossible\n");    return 0;}

#include<stdio.h>int main(){    int i,j,k;    for(j=1;j<=10;j++)    {        for(k=10;k>10-j;k--)        {            printf(" ");        }        for(i=1;i<=10-j;i++)        {            printf("*");        }        printf("\n");            }    return 0;}