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#include "math.h"
main()
{
float a,b,c,disc,x1,x2,p,q;
scanf("a=%f,b=%f,c=%f,",&a,&b,&c,);
disc=b*b-4*a*c;
p=-b/(2*a);
q=sqrt(disc)/(2*a);
x1=p+q; x2=p-q;
print("\n\nx1=%5.2f\nx2=%5.2f\n",x1,x2);
}
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#include "stdio.h"
#include "malloc.h"
typedef struct{
char *ch;
int length;
}HString;
int StrInsert(HString &S,int pos,HString T)
{
int i;
for(i=0;S.ch[i]!='\0';i++);
S.length=i;
printf("%d\n",S.length) ......
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