# include <stdio.h> int main()
{
float a,b,c,m,n,l,k,j,i;
printf("请输入三个数:\n");
scanf("%f %f %f",&a,&b,&c); m = a > b ? a : c;
n = b > c ? b : c;
l = m > n ? m : n;
k = a < b ? a : b;
j = b < c ? b : c;
i = k < j ? k : j; if (a > i && a < l)
{
printf("%f %f %f\n",l,a,i);
}
else if(b > i && b < l)
{
printf("%f %f %f",l,b,i);
}
else
{
printf("%f %f %f",l,c,i);
} return 0;
}
#include<stdio.h>
#include<math.h>
int main()
{
float x,y;
printf("请输入x:\n");
scanf("%f",&x);
{
if(x>4)
y=sqrt(x-4);
if(x<-5)
y=fabs(x);
if(x>=-5&x<=4)
y=x+3;
printf("%f",y);
}
return 0;
}
#include"stdio.h"
int main()
{
char ch;
printf("请输入一个字符：\n");
scanf("%c",&ch);
printf("其大写字符是：%c\n",ch-32);
}
#include<stdio.h>
#include<math.h>
int main()
{
float x,y;
printf("ÇëÊäÈëx:\n");
scanf("%f",&x);
{
if(x<1)
y=(x);
if(x>=1&x<=10)
y=(2*x-1);
if(x>10)
y=(3*x-11);
printf("%f",y);
}
return 0;
}
#include<stdio.h>
int main()
{
int a;
printf("请输入成绩:");
scanf("%d",&a);
if(a>100||a<0)
{
printf("????");
}
else
{
a=a/10;
switch(a)
{
case 10:printf("A\n");break;
case 9: printf("A\n");break;
case 8: printf("B\n");break;
case 7: printf("C\n");break;
case 6: printf("D\n");break;
default:printf("E\n");break;
}
}
return 0;
} #include<stdio.h>
int main()
{
int n;
printf("请输入成绩:");
scanf("%d",&n);
if(n>90)
{
printf("A");
}
else if(n>=80 && n<=90)
{
printf("B");
}
else if(n>=70 && n<=79)
{
printf("C");
}
else if(n>=60 && n<=69)
{
printf("D");
}
else
{
printf("E");
}
return 0;
}