25 lines
519 B
Rust
25 lines
519 B
Rust
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use std::io;
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fn main() {
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let mut s = String::new();
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io::stdin().read_line(&mut s).unwrap();
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let mut maximum = 0;
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let mut people = 0;
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for _ in 0..s.trim().parse::<u64>().unwrap() {
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let mut s = String::new();
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io::stdin().read_line(&mut s).unwrap();
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let s: Vec<i64> = s.split_whitespace().map(|d| d.parse::<i64>().unwrap()).collect();
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people += s[1]-s[0];
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if people > maximum {
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maximum = people;
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}
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}
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println!("{}", maximum);
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}
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