JS practise algos

jsPractise.js

// Reserve first available seat in a two dimensional array
let seats = [
  [1, 1, 0, 1, 0],
  [0, 1, 1, 1, 0],
  [1, 0, 1, 0, 0],
];

//traverse the array
function reserveFirstAvailableSeat(seats) {
  for (let i = 0; i < seats.length; i++) {
    for (let j = 0; j < seats[i].length; j++) {
      if (seats[i][j] === 0) {
        seats[i][j] = 1; // Reserve the seat
        console.log(`Reserved seat at row ${i + 1}, column ${j + 1}`);
        break; //use return instead of break, alternatively, use labelled statements to explicitly break out of the loop
      }
    }
  }
}

reserveFirstAvailableSeat(seats);

The code ends up making 3 reservations instead of 1. This is because the break statement only breaks out of the inner loop, not the outer loop. To fix this, you can replace the break statement with a return statement.