yandex.js

yandex.js

/*Задача 1*/

function foo(config, stringa){
  let count = 0;
  stringa.split('').map(letter => {
    let result = config.indexOf(letter);
    if(result >= 0) count++;
  });
  
  return count;
}

/*Задача 2*/

function foo(config){
    let result = 0;
    let tmp = 0;

    config.forEach((number) => {
        if(parseInt(number) === 1) {
            tmp++;
        } else {
            tmp = 0;
        }

        if(tmp > result) result = tmp;
    });

    return result;
}

/*Задача 3*/

let fs = require('fs');
let readline = require('readline');

let inStream = fs.createReadStream('./input.txt');
let outStream = fs.createWriteStream( './output.txt', { encoding: 'utf8'} );

outStream.writable = true;

let readLine = readline.createInterface({
    input: inStream,
    output: outStream,
    terminal: false,
    historySize: 0
});

let skipLine = true;
let prevLine;

readLine.on('line', function(line) {
    if(skipLine || line === prevLine) {
        skipLine = false;
    } else {
        outStream.write(line + '\n');
        prevLine = line;
    }
});

readLine.on('close', () => {
    outStream.close();
    inStream.close();
});