题解 | #删除字符串中出现次数最少的字符#

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
    const strObj = {}
    let str = ""
    while(line = await readline()){
        for (const s of line) {
            if (strObj[s]) {
                strObj[s] += 1
            } else {
                strObj[s] = 1
            }
        }

        const minCount = Math.min(...Object.values(strObj))
        for (let i = 0;i < line.length; i++) {
            const curr = line[i]
            if (strObj[curr] !== minCount) {
                str += curr
            }
        }
        console.log(str);
    }
}()