Sunt nou in programare c. Decis că ar învăța prin a face unele seturi de probleme în cs50 open courseware. Codul de mai jos produce o eroare de Segmentare (core dumped) eroare. Nu pot să înțeleg de ce. Am citit-o eroare de segmentare are de-a face cu accesarea de memorie nu au acces. Nu văd de ce ar fi cauza asta. Presupun că are de-a face cu indicii. Eu sunt nou la pointeri. Multumesc.
#include <stdio.h>
// https://cs50.harvard.edu/x/2021/labs/1/population/
float yearly_llamas(float starting_population) {
// returns number of llamas at the end of the year
float born = starting_population / 3;
float died = starting_population / 4;
float end_of_year_pop = starting_population + born - died;
return end_of_year_pop;
}
int main(void) {
// use floats for precision
float *start_population;
float *end_population;
// set start lower limit
int start_min = 9;
// make sure input for starting population is greater than or equal to 9
do {
printf("Starting population: ");
scanf("%f", start_population);
} while (*start_population < start_min);
// get ending population, make sure greater than or equal to the starting population
do {
printf("Ending population: ");
scanf("%f", end_population);
} while (*end_population < *start_population);
// print for verification
printf("%f\n", *start_population);
printf("%f\n", *end_population);
float end_pop = yearly_llamas(*start_population);
printf("Llamas at the end of the year: %f\n", end_pop);
return 0;
}