题解 | #记负均正II#

const readline = require('readline');

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

const lines: number[] = [];

rl.on('line', function (line) {
    lines.push(parseInt(line));
});

rl.on('close', () => {
    let negativeCount = 0;
    let notNegativeTotal = 0;
    lines.forEach((item) => {
        if (item < 0) {
            negativeCount++;
        } else {
            notNegativeTotal += item;
        }
    })
    console.log(negativeCount);
    const ave = notNegativeTotal ? (notNegativeTotal / (lines.length - negativeCount)) : 0;
    console.log(ave.toFixed(1));
})