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  1. process.stdin.resume();
  2. process.stdin.setEncoding('utf8');
  3.  
  4. process.stdin.on('data', function (chunk) {
  5. 	const inputArray = chunk.split(""); //? ['(', '(', ')', ')']
  6.  
  7. 	const values = [];
  8.  
  9. 	const CHARACTERS = {
  10. 	  "(": () => values.push("("),
  11. 	  ")": () => {
  12. 	    if (values.length > 0 && values[values.length - 1] === "(") values.pop();
  13. 	    else values.push(")");
  14. 	  },
  15. 	  "?": () => {
  16. 	    if (values.length > 0 && values[values.length - 1] === "(") values.pop();
  17. 	    else values.push("(");
  18. 	  },
  19. 	};
  20.  
  21. 	inputArray.forEach((char) => {
  22. 	  CHARACTERS[char]();
  23. 	});
  24.  
  25. 	process.stdout.write(values.length.toString());
  26. });
  27.  
  28. // Complejidad: O(n)
Success #stdin #stdout 0.08s 36108KB
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7
https://ideone.com/9HsFBv
language:
Node.js (node 11.12.0)
created:
10 days ago
visibility:
public

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