Lehmät

var readline = require("readline");
 
var r = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  terminal: false,
});
 
let lineNumber = 0;
 
//let x = 0;
let y = 0;
 
let map = [];
 
r.on("line", function (line) {
  //console.log(lineNumber);
  if (lineNumber == 0) {
    const items = line.split(" ");
    // x = parseInt(items[1]);
    y = parseInt(items[0]);
    lineNumber++;
    return;
  }
  map.push(line.split(""));
  if (lineNumber >= y) {
    calculate();
    return;
  }
  lineNumber++;
});
 
function calculate() {
  // First lets calculate from top to bottom
  for (let i = 0; i < map.length; i++) {
    const ogMap = [...map];
    map.splice(i, 1);
    if (ogMap[i].includes("*")) break;
    i--;
  }
  // Same but from bottom
  for (let i = map.length - 1; i > 0; i--) {
    map.splice(i, 1);
    if (map[i - 1].includes("*")) break;
  }
 
  // Horizontally
  for (let i = 0; i < map[0].length; i++) {
    const letters = map.map((i) => i[0]);
    map = map.map((i) => {
      i.shift();
      return i;
    });
    i--;
    if (letters.includes("*")) break;
  }
 
  // Right-to-left
  for (let i = map[0].length; i > 0; i--) {
    const letters = map.map((i) => i[i.length - 1]);
    map = map.map((i) => {
      i.pop();
      return i;
    });
    if (letters.includes("*")) break;
  }
  console.log(map.reduce((a, b) => a + b.filter((x) => x === "@").length, 0));
  process.exit();
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED