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Thanh-Binh avatar Thanh-Binh commented on August 17, 2024

it is a bug in the function sdr_print(), I found

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PeterOvermann avatar PeterOvermann commented on August 17, 2024

Not a bug. The internal representation uses values from 0 to N-1. The command line interfaces uses values from 1 to N.
I added comments in sdr_print() and parse() to clarify.

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Thanh-Binh avatar Thanh-Binh commented on August 17, 2024

@PeterOvermann I do not understand because the Input are value from 1 to 9, where N=1000. it must return the value of x I inputted (1 2 3) and not (2 3 4) like you commented

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PeterOvermann avatar PeterOvermann commented on August 17, 2024

Your input was directly into the internal representation, not via the command line parser which subtracts 1 from each value.
You can use the following function to print the internal representation with values 0 to N-1:

void sdr_print_internal (SDR *s) // print sdr positions in the range 0 to N-1
{
for (int r = 0; r < s->p; r++)
{
printf("%d", s->a[r]);
if (r < s->p -1) printf(" ");
}
printf("\n"); fflush(stdout);
}

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Thanh-Binh avatar Thanh-Binh commented on August 17, 2024

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PeterOvermann avatar PeterOvermann commented on August 17, 2024

parse() is doing the right thing: it converts from the 1..N convention used in command line input to the C-internal convention 0..N-1. sdr_print() does the reverse conversion.

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