成都铁狮门:tc语言问题求解

void main()
{
float a,b,c,t;
scanf("%f%f%f",&a,&b,&c);
if (a>b) {t=a;a=b;b=t;}
if (b>c) {t=b;b=c;c=t;}
if (a+b<c) { printf("bu neng gou cheng san jiao\n"); return;}
printf("neng gou cheng san jiao\n");
if (a==b&&b==c) printf("deng bian san jiao\n"); return;
if (a==b||b==c) printf("deng yao san jiao\n");
t=fabs(a*a+b*b-c*c);
if (t<1e-6){printf("zhi jiao san jiao\n"); return;}
}

main()
{
int a,b,c;
scanf("%d,%d,%d",&a,&b,&c);
if (a+b>c||a+c>b||b+c>a)
{
printf("neng gou cheng san jiao\n");
if (a==b&&b==c)
printf("deng bian san jiao");
else if((a*a+b*b==c*c)||(a*a+c*c==b*b)||(b*b+c*c==a*a))
printf("zhi jiao san jiao\n");
else printf("pu tong san jiao");
}
else
printf("bu neng gou cheng san jiao");
getch();

}

main()
{
int a,b,c,s[3]={0,0,0},i,j,t;
printf("please input 3 number:\n");
scanf("%d%d%d",&s[0],&s[1],&s[2]);
printf("%5d%5d%5d\n",s[0],s[1],s[2]);

for (i=0;i<=2;i++)
for(j=i;j<=2;j++)
{

if(s[i]>s[j])
{
t=s[i];
s[i]=s[j];
s[j]=t;
}
}
printf("%d%d%d\n",s[0],s[1],s[2]);
if(s[0]+s[1]>s[2]&&s[1]>s[2]-s[0])
{
printf("可以构成三角形！");
if (s[1]*s[1]+s[0]*s[0]==s[2]*s[2])
printf("直角三角形");
else if(s[1]==s[2]&&s[2]==s[0])
printf("等边三角形");
else if(s[1]==s[2]||s[1]==s[0])
printf("等腰三角形");
else printf("瞤??切?);
}
else
{
printf("不能构成三角形！");
}
}