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export default function minimumTotal(triangle: number[][]): number {    const bottom = triangle[triangle.length - 1];
    let dp = bottom;
    for (let i = dp.length - 2; i >= 0; i--) {        dp = dp.map((v, j, a) => {            return Math.min(v, a[j + 1]) + triangle[i][j];        });        dp.length--;    }    return dp[0];}