#include<stdio.h>int main(){    int a,b,c;    printf("请输入3个整数：");    scanf("%d %d %d",&a,&b,&c);    if(a<b && a<c && b<c)        printf("%d %d %d",a,b,c);    if(b<a && b<c && a<c)        printf("%d %d %d",b,a,c);     if(b<a && b<c && a>c)        printf("%d %d %d",b,c,a);    if(c<a && c<b && a>b)        printf("%d %d %d",c,b,a);    if(c<a && c<b && a<b)        printf("%d %d %d",c,a,b);    if(a<b && a<c && b>c)        printf("%d %d %d",a,c,b);       return 0;} 

#include<stdio.h>int main(){    int a,b;    printf("请输入车速和限速：");     scanf("%d %d",&a,&b);    double c=(double)(a-b)*100/b;    if(c<=10)        printf("未超速");    else if(c<50 && c>10)        printf("超速，罚款200元",c);    else        printf("严重超速，吊销驾驶证",c);    return 0;} 

#include <stdio.h> int main(){         double a,b,c,d;     int t,n;    printf("请输入行驶里程与等待时间：");    scanf("%lf%d",&a,&t);     if (a<=3)          c=10;     else if(a>3 && a<=10)          c=10+2*(a-3);     else if(a>10)         c=24+3*(a-10);     if (t<5)      {         d=0;     }     else if(t>=5)     {         n=t/5;         d=n*2;     }     b=c+d;     printf("乘客应支付车费为：%.lf\n",b);    return 0;}

#include <stdio.h>int main(){    int i,A,B,C,D,E,n,s;    A=B=C=D=E=0;    printf("Enter n:");    scanf("%d",&n);    for(i=0;i<n;++i)    {        printf("Enter grade %d:",i+1);        scanf("%d",&s);        switch(s/10)        {         case 1:E;break;        case 2:D;break;        case 3:C;break;        case 4:B;break;        case 5:A;break;        }    }    printf("The number of A(90~100):%d\n",A);    printf("The number of B(80~89):%d\n",B);    printf("The number of C(70~79):%d\n",C);    printf("The number of D(60~69):%d\n",D);    printf("The number of E(0~59):%d\n",E);    return 0;}