36 lines
872 B
Rust
36 lines
872 B
Rust
use std::io;
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fn beacon_interval_count(n: i32, hs: Vec<i32>) -> i64 {
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let mut before: i32 = 0;
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let mut edge: Vec<i32> = Vec::new();
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for (i, &h) in hs.iter().enumerate() {
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if before < h {
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before = h;
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edge.push(i as i32);
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}
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}
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let mut cnt: i64 = 1;
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let mut before_edge: i32 = 0;
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for &ev in edge.iter() {
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cnt = (cnt * ((ev - before_edge + 1) as i64)) % 1_000_000_007;
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before_edge = ev;
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}
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cnt
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}
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fn main() {
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let mut line = String::new();
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io::stdin().read_line(&mut line).unwrap();
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let n: i32;
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n = line.trim().parse().unwrap();
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line.clear();
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io::stdin().read_line(&mut line).unwrap();
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let hs: Vec<i32> = line.trim().split(' ').map(|x| x.parse().unwrap()).collect();
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println!("{}", beacon_interval_count(n, hs));
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}
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