牛客网华为机试题整理

//计算字符串最后一个单词的长度，单词以空格隔开，字符串长度小于5000。
var input = readline();
function test(text) {
    return text.split(' ')[text.split(' ').length - 1].length
}
console.log(test(input));

// 写出一个程序，接受一个由字母、数字和空格组成的字符串，和一个字符，然后输出输入字符串中该字符的出现次数。（不区分大小写字母）
var input = readline().toLowerCase();
var key = readline().toLowerCase();
function findTime(input, key) {
    let count = 0;
    input.split('').forEach(data => {
        if (data === key) {
            count++
        }
    })
    return count
}
console.log(findTime(input, key))

// 明明的随机数
var number = readline()
var list = {};
function sortNumber(a, b) {
    return a - b
}
function find(number, index) {
    list[index] = [];
    for (let i = 0; i < number; i++) {
        list[index].push(readline())
    }
    let time = readline();
    if (time) {
        index++
        find(time, index)
    } else {
        return
    }
}
find(number, 0);
Object.keys(list).forEach(key => {
    list[key] = [...new Set(list[key])].sort(sortNumber)
    list[key].forEach(value => {
        console.log(value)
    })
})

// 字符串分隔
var str;
while (str = readline()) {
    getStr(str)
}
function getStr(str) {
    let resStr;
    if (str.length == 8) {
        resStr = str;
        console.log(resStr)
    } else if (str.length < 8) {
        resStr = str.padEnd(8, '0');
        console.log(resStr)  
    } else {
        let restStr = str.slice(8);
        resStr = str.slice(0, 8);
        console.log(resStr)
        getStr(restStr);
    }
}

// 进制转换
while (str = readline()) {
    console.log(parseInt(str, 16))
}

// 质数因子
var num = parseInt(readline())
var list = [];
var i = 2;
while (i <= num && i * i <= num) {
    if (num % i === 0) {
        list.push(i)
        num /= i
        i = 2
    } else {
        i++
    }
}

if (num != 1) {
    list.push(num)
}
console.log(list.join(' '))

// 取近似值
var num = parseFloat(readline())
console.log(num.toFixed())

// 合并表记录
var num = parseInt(readline())
let i = 0;
let c = new Map()
while (i < num) {
    let a = readline().split(' ')
    if (c.has(a[0])) {
        c.set(a[0], parseInt(c.get(a[0])) + parseInt(a[1]))
    } else {
        c.set(a[0], a[1])
    }
    i++
}
let data = Array.from(c)
data.sort((a, b) => { return a[0] - b[0] })
data.forEach((value) => {
    console.log(`${value[0]} ${value[1]}`)
})

//提取不重复的整数
console.log(parseInt([...new Set(readline().toString().split('').reverse())].join('')))

//字符个数统计
console.log([...new Set(readline())].map(data => {
    if (data.charCodeAt < 0 || data.charCodeAt > 127) return
    return data
}).length)

//数字颠倒
console.log(readline().split('').reverse().join(''))

//字符串反转
console.log(readline().split('').reverse().join(''))

//句子逆序
console.log(readline().split(' ').reverse().join(' '))

//字符串排序
let a = readline();
let i = 0
let list = [];
while (i < a) {
    list.push(readline())
    i++
}
list.sort()
list.forEach(data => console.log(data))

//求int型正整数在内存中存储时1的个数
let count = 0;
parseInt(readline()).toString(2).split('').forEach(data => {
    if (data === '1') {
        count++
    }
})
console.log(count)

while (str1 = readline()) {
    const str2 = readline();
    console.log(minDistance(str1.split(''), str2.split('')));
}
function minDistance(str1, str2) {
    let n = str1.length;
    let m = str2.length;
    if (n * m === 0) return m + n;
    if (str1 === str2) return 0;
    let number = 0;
    let length = n - m ? n : m;
    let i = 0;
    for (i; i < length; i++) {
        if (str1[i] && str2[i]) {
            if (str1[i] !== str2[i]) {
                number++
            }
        } else if ((str1[i] && !str2[i]) || (str2[i] && !str1[i])) {
            number++
        }
    }
    return number
}

console.log(minDistance('abcde', 'bcdef'))

// 字符统计
var str;
while (str = readline()) {
    findAll(str.split(''))
}
function findAll(str) {
    let map = new Map();
    str.forEach(data => {
        if (map.has(data)) {
            map.set(data, map.get(data) + 1)
        } else {
            map.set(data, 1)
        }
    })
    let data = Array.from(map)

    data.sort((a, b) => {
        if (a[1] === b[1]) {
            return a[0].charCodeAt() - b[0].charCodeAt()
        } else {
            return b[1] - a[1]
        }
    })
    let string = ''
    data.forEach(value => {
        string = string + value[0]
    })
    console.log(string)
}

var str
while (str = readline()) {
    test(readline().split(''))
}

function test(list) {
    let data = [];
    list.forEach((value, i) => {
        let text = value;
        let dataList = list.slice(i + 1)
        dataList.sort((a, b) => { return parseInt(a) - parseInt(b) }).filter(value => { return parseInt(text) < parseInt(value) })
        console.log(dataList)
        dataList = [...new Set(dataList)].
        data.push(dataList.length + 1)
    })
    data.sort()
    return data[data.length - 1]
}
console.log(test(('186 13 322 264 328 110').split(' ')))
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