const counts = {};

if (s.length !== t.length) return false;
const counts = new Map();

const counts = new Map();

const freq = {};

if (s.length !== t.length) return false;
const counts = new Map();

const counts = new Map();

const count1 = new Map();
for (const num of nums1) { count1.set(num, (count1.get(num) || 0) + 1); }
const result = [];

const balances = new Map();

const counts = new Map();
for (const ch of s) { counts.set(ch, (counts.get(ch) ?? 0) + 1); }
const left = new Map();
let goodSplits = 0;

const groups = new Map();

if (s.length !== t.length) return false;
const sToT = new Map();
const tToS = new Map();

const bannedSet = new Set(banned);
const counts = new Map();

const counts = new Map();

const counts = new Map();
for (const n of nums) {
  counts.set(n, (counts.get(n) ?? 0) + 1);
}

if (marbles.length % k !== 0) return false;
const counts = new Map();

const lastSeen = new Map();
let best = Infinity;

const counts = new Map([[0, 1]]);
let prefix = 0;
let result = 0;

const xMap = new Map(); const yMap = new Map(); const indexByName = new Map();

const songToGenre = new Map();
for (const [genre, songs] of Object.entries(songGenres)) {
  for (const song of songs) songToGenre.set(song, genre);
}
const result = {};

const counts = new Array(7).fill(0);
for (const d of dice) counts[d]++;

const degree = new Map(); let maxRank = 0;

for (const ch of s) {

for (const ch of s) {

for (const word of words) {

for (const num of arr) {

for (const char of s) {

for (const ch of s) {

for (const num of nums2) {

for (const [debtor, creditor, amount] of transactions) {

for (let i = 0; i < s.length - 1; i++) {

for (const s of strs) {

for (let i = 0; i < s.length; i++) {

for (const w of words) {

for (const log of logs) {

for (const [n, c] of counts) {

for (const m of marbles) {

for (let i = 0; i < card.length; i++) {

for (const value of arr) {

for (let i = 0; i < cities.length; i++) {

for (const [user, songs] of Object.entries(userSongs)) {

for (let face = 1; face <= 6; face++) {

for (let i = 0; i < starts.length; i++) {

  counts[ch] = (counts[ch] || 0) + 1;

  counts.set(ch, (counts.get(ch) ?? 0) + 1);

  counts.set(word, (counts.get(word) || 0) + 1);

  freq[num] = (freq[num] || 0) + 1;

  counts.set(char, (counts.get(char) || 0) + 1);

  counts.set(ch, (counts.get(ch) ?? 0) + 1);

  if ((count1.get(num) || 0) > 0) {
    result.push(num);
    count1.set(num, count1.get(num) - 1);
  }

  balances.set(debtor, (balances.get(debtor) ?? 0) - amount);
  balances.set(creditor, (balances.get(creditor) ?? 0) + amount);

  const ch = s[i];
  left.set(ch, (left.get(ch) ?? 0) + 1);
  counts.set(ch, counts.get(ch) - 1);
  if (counts.get(ch) === 0) counts.delete(ch);

  const key = [...s].sort().join('');
  if (!groups.has(key)) groups.set(key, []);
  groups.get(key).push(s);

  const a = s[i]; const b = t[i];
  if (sToT.has(a) && sToT.get(a) !== b) return false;
  if (tToS.has(b) && tToS.get(b) !== a) return false;
  sToT.set(a, b); tToS.set(b, a);

  if (bannedSet.has(w)) continue;
  counts.set(w, (counts.get(w) ?? 0) + 1);

  const [a, b] = log.split(' ');
  counts.set(a, (counts.get(a) ?? 0) + 1);
  if (a !== b) counts.set(b, (counts.get(b) ?? 0) + 1);

  if (k === 0) {
    if (c >= 2) pairs++;
  } else {
    if (counts.has(n + k)) pairs++;
  }

  counts.set(m, (counts.get(m) || 0) + 1);

  if (lastSeen.has(card[i])) {
    best = Math.min(best, i - lastSeen.get(card[i]) + 1);
  }

  prefix += value;
  let mod = prefix % k;
  if (mod < 0) mod += k;
  result += counts.get(mod) ?? 0;
  counts.set(mod, (counts.get(mod) ?? 0) + 1);

  if (!xMap.has(x[i])) xMap.set(x[i], []);
  xMap.get(x[i]).push(i);
  if (!yMap.has(y[i])) yMap.set(y[i], []);
  yMap.get(y[i]).push(i);
  indexByName.set(cities[i], i);

  const counts = new Map();
  for (const song of songs) {
    const genre = songToGenre.get(song);
    if (genre) counts.set(genre, (counts.get(genre) ?? 0) + 1);
  }

  let rotations = 0;
  for (let d = 1; d <= 6; d++) {
    if (d === face) continue;
    rotations += (d + face === 7) ? counts[d] * 2 : counts[d];
  }

  degree.set(starts[i], (degree.get(starts[i]) ?? 0) + 1);
  degree.set(ends[i], (degree.get(ends[i]) ?? 0) + 1);

for (const ch of t) {
  if (!counts.has(ch) || counts.get(ch) === 0) return false;
  counts.set(ch, counts.get(ch) - 1);
}

for (let i = 0; i < s.length; i++) {
  if (counts.get(s[i]) === 1) return i;
}

// result collected during traverse

for (const [name, balance] of balances) { if (balance < 0) result.push(name); }

  if (left.size === counts.size) goodSplits++;

// groups.values() holds all anagram clusters

// mapping consistency verified inline during TRAVERSE

let best = ''; let bestCount = 0;
for (const [word, c] of counts) {
  if (c > bestCount) { best = word; bestCount = c; }
}

const flagged = [];
for (const [id, count] of counts) {
  if (count > threshold) flagged.push(id);
}
flagged.sort((a, b) => Number(a) - Number(b));

// pairs accumulates during traversal

for (const count of counts.values()) { if (count > k) return false; }

// answer already accumulated in best

// result accumulates during traversal

for (const q of queries) { /* look up candidates, find min-distance */ }

  let maxCount = 0;
  for (const c of counts.values()) maxCount = Math.max(maxCount, c);
  result[user] = [...counts.entries()].filter(([, c]) => c === maxCount).map(([g]) => g);

best = Math.min(best, rotations);

for (let i = 0; i < starts.length; i++) {
  const rank = degree.get(starts[i]) + degree.get(ends[i]) - 1;
  if (rank > maxRank) maxRank = rank;
}