Tulkki

const fs = require('fs');
 
const input = fs.readFileSync(0, 'utf-8');
 
function tokenize(code) {
  const lines = code
    .split('\n')
    .map(line => line.split('#')[0])
    .join('\n')
    .replace(/\(/g, ' ( ')
    .replace(/\)/g, ' ) ')
    .split(/\s+/)
    .filter(Boolean);
  return lines;
}
 
function parse(tokens) {
  function parseBlock() {
    const block = [];
    while (tokens.length > 0) {
      const token = tokens.shift();
      if (token === 'CLEAR') {
        block.push({ type: 'CLEAR', var: tokens.shift() });
      } else if (token === 'INCREASE') {
        block.push({ type: 'INCREASE', var: tokens.shift() });
      } else if (token === 'PRINT') {
        block.push({ type: 'PRINT', var: tokens.shift() });
      } else if (token === 'REPEAT') {
        const varName = tokens.shift();
        tokens.shift();
        tokens.shift();
        const inner = parseBlock();
        block.push({ type: 'REPEAT', var: varName, block: inner });
      } else if (token === ')') {
        break;
      }
    }
    return block;
  }
  return parseBlock();
}

function execute(program, variables) {
  const output = [];
  function run(block) {
    for (const cmd of block) {
      if (cmd.type === 'CLEAR') {
        variables[cmd.var] = 0;
      } else if (cmd.type === 'INCREASE') {
        variables[cmd.var] += 1;
      } else if (cmd.type === 'PRINT') {
        output.push(variables[cmd.var]);
      } else if (cmd.type === 'REPEAT') {
        const count = variables[cmd.var];
        for (let i = 0; i < count; i++) {
          run(cmd.block);
        }
      }
    }
  }
  run(program);
  return output;
}

const tokens = tokenize(input);
const program = parse(tokens);
const variables = Object.fromEntries(
  Array.from({ length: 26 }, (_, i) => [String.fromCharCode(65 + i), 0])
);
const result = execute(program, variables);
console.log(result.join(' '));

Test 1 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 6 (public)

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 8 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 9 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 10 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 11 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 12 (public)

Group: 2, 3

Verdict: ACCEPTED

Test 13 (public)

Group: 3

Verdict: ACCEPTED

Test 14 (public)

Group: 3

Verdict: ACCEPTED

Test 15 (public)

Group: 3

Verdict: ACCEPTED

Test 16 (public)

Group: 3

Verdict: ACCEPTED

Test 17 (public)

Group: 3

Verdict: ACCEPTED

Test 18 (public)

Group: 3

Verdict: ACCEPTED