function largestAltitude(gain){
 let cur=0,best=0;
 for(const x of gain){ cur+=x; if(cur>best) best=cur; }
 return best;
}

function largestAltitude(gain:number[]):number{
 let cur=0,best=0;
 for(const x of gain){ cur+=x; if(cur>best) best=cur; }
 return best;
}

package main

func largestAltitude(gain []int) int {
	cur, best := 0, 0
	for _, x := range gain {
		cur += x
		if cur > best { best = cur }
	}
	return best
}

func main() {}

fn largest_altitude(gain: &[i32]) -> i32 {
	let (mut cur, mut best) = (0, 0);
	for &x in gain { cur += x; best = best.max(cur); }
	best
}
fn main() {}