I know that this is very easy question for you, but for me as beginner very hard. To get to thing. I have to create program that will take as many numbers as I want and then write max and min from them. Numbers can have decimals so that´s why double. Everything goes great as far as I trouble-shot until while cycle begins. I always get 0 on output on both min and max values. Anyone knows why? Code:
main() {
int a = 0, b = 0, min = 1000, max = 0;
printf("How many numbers do you want to enter\n");
scanf("%d", & a);
b = a;
double n[b];
printf("Write those numbers\n");
for (b = 0; a > b; b++) {
scanf("%lf", & n[b]);
}
b = 0;
while (1) {
if (n[b] < n[b + 1])
max = n[b + 1];
if (min > n[b])
n[b] = min;
b++;
if (b == a)
break;
}
printf("Minimum: %lf\nMaximum: %lf", min, max);
}
Printing an int using a conversion specifier for double is not a good idea, but invokes the infamous Undefined Behaviour.
The compiler might have noticed you about this. If it didn't, then increase its warning level. For GCC use -Wall -Wextra -pedantic.
So to fix this either make min and max be double
int a = 0, b = 0;
double min = 1000., max = 0.; /* Such initialisations limit your input. */
or leave them be int (decreasing accuracy), and print them as what there are, namely int
printf("Minimum: %d\nMaximum: %d\n", min, max);