题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
rl.on('line', function (line) {
console.log(fn(line))
});
const fn = line => {
return Array.from(new Set(line.split(''))).length;
}
投递新环境等公司6个岗位 >