For Loop Not Iterating the Right Amount of times - c

Question

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int rnd = list[modo];
}
return 1;
}
This code compiles fine, I just have a question as to why the for loop isn't iterating till size < i Where i is the same size as the integer argument that gets passed int.
It's supposed to keep printing %d until it reaches size i but it only prints one random number.
I'm trying to get it to print the amount of random numbers that are passed as an argument.
So if you enter ./main 3 to run the program for example it prints: 0 4 5 or ./main 4 it prints: 2 1 5 6

Answer 1

There is a return 0 inside the for statement block, this exits the main function and ends the program, remove this line. (And change the last line return 1 to return 0.)

Answer 2

isrnick answer is spot on. Anyway, the program has many other problems.
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main( int argc, int *argv[] ) { // <--- Must be int main(int argc, char *argv[])
srand(time(NULL)); // <--- Warning, you need a cast here.
int list[10] = {0,1,2,3,4,5,6,7,8,9}; // <--- Why?
int modo = rand() %11; // <--- Must be %10 if desired max is 9
int rnd = list[modo]; // <--- This will be a single value for the program
int arr[argc]; // <--- VLAs? Why?
int i = argv[1]; // <--- Warning, C string to int... you need a conversion function
int size = 0;
for (size = 0; size < i; size++){ // <--- Do yourself a favor, use i as the looping variable
srand(time(NULL)); // <--- One srand per program
printf("%d \n", rnd); // <--- always print the same number
return 0; // <--- Terminate program here? No, no.
}
return 1; // <--- If no error, return 0.
}
Minimal fixed version (no checks):
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(int argc, char *argv[])
{
srand((unsigned int)time(NULL));
int n = atoi(argv[1]);
for (int i = 0; i < n; i++) {
int rnd = rand() % 10;
printf("%d ", rnd);
}
return EXIT_SUCCESS;
}
More controls:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(int argc, char *argv[])
{
if (argc != 2) {
return EXIT_FAILURE;
}
srand((unsigned int)time(NULL));
int n;
if (sscanf(argv[1], "%i", &n) != 1) {
return EXIT_FAILURE;
}
if (n < 0) {
return EXIT_FAILURE;
}
for (int i = 0; i < n; i++) {
int rnd = rand() % 10;
printf("%d ", rnd);
}
return EXIT_SUCCESS;
}