#include <stdio.h>
#include <math.h>

void solveQuadraticEquation(void);  /* This is a PROTOTYPE */

int main(void) {
  solveQuadraticEquation();  
  return 0;
}

/* Find the roots in a * x*x + b * x + c = 0 */
void solveQuadraticEquation(void){
  /*  ... */
}