# include <stdio.h>int main(){    int x,y,z,a,b;    printf("请输入三个要比较的整数：");    scanf("%d %d %d",&x,&y,&z);    if (x>y)    {        a=x;    }    else    {        a=y;    }    if (a>z)    {        b=a;    }    else    {        b=z;    }    printf("最大的数为:%d",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()//五级制成绩分布 {    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:        case 2:        case 3:        case 4:        case 5:E++;break;        case 6:D++;break;        case 7:C++;break;        case 8:B++;break;        case 9:        case 10: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;

#include<stdio.h>int main(){    int i,j,k;    for(j=1;j<=10;j++)    {        for(k=1;k<j;k++)            printf(" ");        for(i=1;i<=11-j;i++)                        printf("*");        printf("\n");        }         return 0;}