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22 lines
492 B
Rust
22 lines
492 B
Rust
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use std::cmp;
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impl Solution {
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pub fn find_min_arrow_shots(mut points: Vec<Vec<i32>>) -> i32 {
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points.sort_unstable_by_key(|p| p[0]);
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let mut used_arrows = 1;
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let mut max_x = points[0][1];
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for point in points.iter().skip(1) {
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if point[0] <= max_x {
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max_x = cmp::min(max_x, point[1]);
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} else {
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used_arrows += 1;
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max_x = point[1];
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}
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}
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used_arrows
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}
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}
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