c语言答案(2)

printf(\8、void main() { float r; float s,c;

printf(\ scanf(\ if(r>=0) {

s = 3.14*r*r; c = 2*3.14*r;

printf(\ } else

printf(\ }

9、void main() { int n;

printf(\ scanf(\

if(n>=100 && n <= 999)

printf(\ else

printf(\}

10、void main() { int i,j,k;

scanf(\

((i%2 != 0?1:0) + (j%2 != 0?1:0)+(k%2 2?printf(\}

11、void main() { char a; scanf(\

printf(\ printf(\}

12、void main() {

float a,b,c,s,Area;

scanf(\

0?1:0)) == != if(a+b > c || a+c > b || b+c >a) {

s = (a+b+c)/2;

Area = sqrt(s*(s-a)*(s-b)*(s-c)); printf(\ } else

printf(\} 习题4 1： 0 2： 20

3： (x<30&&x>20)||(x<-100)

4: ***a=25,b=14,c=16***

5: 37

6: if(a<=b) printf(\ else printf(\ 7、

#include void main() { char a,b,t1,t2; scanf(\ t1=a>b?a:b; t2=a void main()

{ int temp1=0,temp2=0,x,y,i=1; printf(\ \ scanf(\ while((i*y)<=x)

{ if(x==(i*y)) {temp1=1;break;} temp2=i; i++;

}

if(temp1)

printf(\ else printf(\

/

shang=%d,yushu=%d\ getch(); } 9、

#include void main() { float x,y,m=0,n=0; scanf(\ n=(x-2)*(x-2); m=(y-2)*(y-2); if((m+n)<=1)

printf(\ else

printf(\ getch(); } 10、

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