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  1. "use strict";
  2.  
  3. const round = [];
  4. let run = 0;
  5. let max = 0;
  6. let first_arr = [];
  7. let last_arr = [];
  8. let dishes;
  9. let kind;
  10. let eat;
  11. let coupon;
  12. let use_coupon = false;
  13. let inputs = require("fs").readFileSync("/dev/stdin", "utf8").trim().split("\n");
  14.  
  15. let first_line = inputs[0].split(' ').map(Number);
  16. dishes = parseInt(first_line[0]);
  17. kind = parseInt(first_line[1]);
  18. eat = parseInt(first_line[2]);
  19. coupon = parseInt(first_line[3]);
  20. inputs.shift();
  21.  
  22. for (let run = 0; run < inputs.length; run++) {
  23.   round.push(inputs[run]);
  24.   if (run == eat) first_arr = round.slice();
  25.   else if (run == dishes - eat + 2) last_arr = round;
  26.  
  27.   if (round.length == eat + 2) {
  28.     use_coupon = false;
  29.     setMaxCount(round);
  30.     round.shift();
  31.   }
  32. }
  33.  
  34. const arr = last_arr.concat(first_arr);
  35. arr.pop();
  36. let t = [];
  37. let temp;
  38.  
  39. for (let i = 0; i < last_arr.length + eat - 1; i++) {
  40.   t = [];
  41.   for (let j = i; j < i + eat + 2; j++) {
  42.     if (j > arr.length - 1) temp = j - arr.length;
  43.     else temp = j;
  44.     t.push(arr[temp]);
  45.   }
  46.   setMaxCount(t);
  47. }
  48. console.log(max);
  49.  
  50. function setMaxCount(arr) {
  51.   let use_coupon = false;
  52.  
  53.   let temp_max = arr.filter((element, index) => {
  54.     if (index > 0 && index < arr.length) {
  55.       if (element == coupon) use_coupon = true;
  56.       return arr.indexOf(element) === index;
  57.     } else return false;
  58.   }).length;
  59.  
  60.   if (!use_coupon && (arr[0] == coupon || arr[arr.length - 1] == coupon)) temp_max++;
  61.   if (max < temp_max) max = temp_max;
  62.  
  63.   return max;
  64. }
Success #stdin #stdout 0.06s 32028KB
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https://ideone.com/u9RgSy
language:
Node.js (node 11.12.0)
created:
2 years ago
visibility:
public

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