题解 | #计算日期到天数转换#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void (async function () {
    // Write your code here
    let arr = [];
    let year;
    let month;
    let day;
    let result = 0;
    const md = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    while ((line = await readline())) {
        arr = line.split(" ");
        year = parseInt(arr[0]);
        month = parseInt(arr[1]);
        day = parseInt(arr[2]);
    }
    if (month == 1) {
        result = day;
    } else if (month == 2) {
        result = 31 + day;
    } else {
        // 3月及以上，2月先按平月28天算
        for (let i = 1; i < month; i++) {
            result += md[i];
        }
        result += day;
    }
    if (((year % 4 == 0 && year % 100) || year % 400 == 0) && month >= 3) {
        result += 1;
    }
    console.log(result);
})();