1267_Count_Servers_that_Communicate.js

/**
 * @param {number[][]} grid
 * @return {number}
 */
var countServers = function(grid) {
    const m = grid.length;
    const n = grid[0].length;
    const row = new Array(m).fill(0);
    const col = new Array(n).fill(0);
    for (let i = 0; i < m; i++) {
        for (let j = 0; j < n; j++) {
            if (grid[i][j] === 1) {
                row[i]++;
                col[j]++;
            }
        }
    }
    let ans = 0;
    for (let i = 0; i < m; i++) {
        for (let j = 0; j < n; j++) {
            if (grid[i][j] === 1 && (row[i] > 1 || col[j] > 1)) {
                ans++;
            }
        }
    }
    return ans;
};