Module b
Expand description
ยงABC 398 B - Full House 3
refs: https://atcoder.jp/contests/abc398/tasks/abc398_b
use std::collections::HashMap;
use proconio::input;
fn main() {
input! {
a: [usize; 7]
}
let counts = count_map(&a);
if count_over(&counts, 3) >= 1 && count_over(&counts, 2) >= 2 {
println!("Yes");
} else {
println!("No");
}
}
fn count_map(arr: &[usize]) -> HashMap<usize, usize> {
let mut counts = HashMap::new();
for &x in arr {
*counts.entry(x).or_insert(0) += 1;
}
counts
}
fn count_over(counts: &HashMap<usize, usize>, threshold: usize) -> usize {
counts.values().filter(|&&count| count >= threshold).count()
}