28 lines
681 B
Rust
28 lines
681 B
Rust
extern crate rand;
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mod _common;
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use _common::{validate, SEED};
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use rand::distributions::{Range, Sample};
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use rand::{IsaacRng, Rng, SeedableRng};
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use std::char;
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fn main() {
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let mut rnd = IsaacRng::from_seed(&SEED);
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let mut range = Range::new(0, 10);
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for _ in 0..5_000_000u64 {
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let num_digits = rnd.gen_range(100, 400);
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let digits = gen_digits(num_digits, &mut range, &mut rnd);
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validate(&digits);
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}
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}
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fn gen_digits<R: Rng>(n: u32, range: &mut Range<u32>, rnd: &mut R) -> String {
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let mut s = String::new();
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for _ in 0..n {
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let digit = char::from_digit(range.sample(rnd), 10).unwrap();
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s.push(digit);
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}
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s
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}
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