VB编程 计算分段函数：y＝1(x>0) y＝0(x＝0) y＝－1(x<0)

如题所述

1,#include<Stdio.h>
int main(){
int x = 0;
scanf("%d",&x);
if(x < 0)
printf("-1");
else if( x == 0)
printf("0");
else
printf("1");
return 0;
}
2,#include<stdio.h>
int main(){
float a,b,c;
scanf("%f%f%f",&a,&b,&c);
if(a > b)
a = a+b - (b = a);
if(c < a){
c = a + c -( a = c);
c = b + c - (b = c);
}
if(c < b)
c = c+b - (b = c);
printf("%f %f %f",c,b,a);
return 0;
}
3,#include<stdio.h>
int main(){
int a ,b,c;
scanf("%d%d%d",&a,&b,&c);
printf("%d",(a>b?a:b)>c?(a>b?a:b):c);
return 0;
}
4,#include<stdio.h>
int main(){
float r = 0;
printf("请输入半径");
scanf("%f",&r);
printf("周长是%f",2*3.14*r);
printf("面积是%f",3.14*r*r);
return 0;
}
5,#include<stdio.h>
#include<math.h>
int main(){
int x = 0;
scanf("%d",&x);
if (x < -10)
printf("%d",5- x);
else if( x <= 10)
printf("%d", 4 * x -8);
else
printf("%d",sqrt(x));
return 0;
}

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