#include <stdio.h>
#include <stdlib.h>
#include <math.h>
float suma(float tab[], int dlugosc) {
int i = 0, s = 0;
for (i = 0; i < dlugosc; i++)
s += tab[i];
return s;
}
float sredniaA(float tab[], int dlugosc) {
int i = 0, s = 0, sr;
for (i = 0; i < dlugosc; i++)
s += tab[i];
sr = s / (i + 1);
return sr;
}
float sredniaG(float tab[], int dlugosc) {
int i = 0;
float sr;
long long int s = 1.0;
for (i = 0; i < dlugosc; i++)
s = s * tab[i];
sr = pow(s, (1.0 / (i + 1)));
return sr;
}
int main() {
int i = 0, rozmiar = 4, wpisane = 0;
float *tablica, a;
tablica = (float*)malloc(rozmiar * sizeof(*tablica));
tablica[0] = 0.1;
FILE* f = fopen("dane.txt", "r");
if (f == NULL)
printf("Problem z plikiem");
else {
if (wpisane != rozmiar) {
while (!feof(f)) {
if (i == 0) {
fscanf(f, "%f", &a);
tablica[i] = a;
i++;
} else {
fscanf(f, "%f", &a);
tablica[i] = a;
i++;
}
}
}
else {
float* tablica2 = (float*)malloc(2 * rozmiar * sizeof(*tablica));
rozmiar = 2 * rozmiar;
int j;
for (j = 0; j < i; j++)
tablica2[j] = tablica[j];
free(tablica);
tablica = tablica2;
i--;
tablica[i] = a;
i++;
wpisane++;
}
}
int j = 0;
for (j = 0; j < i - 1; j++)
printf("%.3f\n", tablica[j]);
printf("%.3f\n", suma(tablica, (i)));
printf("%.3f\n", sredniaA(tablica, (i)));
printf("%.3f\n", sredniaG(tablica, (i)));
return 0;
}
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