export default function maximumRows(
    mat: number[][],
    numSelect: number,
): number {
    const n = mat[0].length;
    //const m = mat.length
    const rows = mat.map((v) => [...v.keys()].filter((j) => v[j]));
    let ans = 0;

    for (const selected of combinations(Array(n).keys(), numSelect)) {
        const set = new Set(selected);
        const count = mat.filter((_v, i) =>
            rows[i].every((j) => set.has(j))
        ).length;

        ans = Math.max(ans, count);
    }
    return ans;
}
import { combinations } from "https://deno.land/x/combinatorics@1.1.2/combinations.ts";