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function maxArea(height: number[]): number {    let l = 0;    let r = height.length - 1;    let ans = 0;    while (l < r) {        const area = Math.min(height[l], height[r]) * (r - l);        ans = Math.max(ans, area);        if (height[l] < height[r]) {            l++;        } else {            r--;        }    }    return ans;}export default maxArea;