View Code of Problem 42

#include<stdio.h>
#include<math.h>
int main()
{
   pintf("请输入ABC\n");
  int a,b,c;
  double X1,X2,melt;
  scanf("%d %d %d",&a,&b,&c);
  melt=b*b-4*a*c;
  X1=(-b-sqrt(melt))/(2*a);
  X2=(-b+sqrt(melt))/(2*a);
  if(X1<X2){
    melt=X1;
    X1=X2;
    X2=X1;
  }
  printf("%lf %lf",X1,X2);
}
/*
Main.c: In function 'main':
Main.c:5:4: warning: implicit declaration of function 'pintf'; did you mean 'rintf'? [-Wimplicit-function-declaration]
    pintf("请输入ABC\n");
    ^~~~~
    rintf
/usr/bin/ld: /tmp/ccqacRRB.o: in function `main':
Main.c:(.text.startup+0xe): undefined reference to `pintf'
collect2: error: ld returned 1 exit status
*/