PAT 乙级（Basic Level）kotlin版 1016-1019

每天两道提神醒脑

//https://pintia.cn/problem-sets/994805260223102976/problems/994805306310115328
//pat 1016

import java.io.BufferedReader
import java.io.InputStreamReader
import kotlin.math.pow


fun main(args: Array<String>) {
    //val kin = Scanner(System.`in`) 2个超时
    val kin = BufferedReader(InputStreamReader(System.`in`)) //ac
    //readLine()
    //val s = readLine()!!.split(' ') 全超时
    val s = kin.readLine().split(" ")
    val a = s[0].toCharArray()
    val da = s[1].toInt()
    val b = s[2].toCharArray()
    val db = s[3].toInt()

//    print(result(a, da.toString().toCharArray(), da))
    print(result(a, da.toString().toCharArray(), da) + result(b, db.toString().toCharArray(), db))

}

fun result(p: CharArray, t: CharArray, i: Int): Int {
    var x = p.count { it == t[0] }
    var result = 0;
    while (x > 0) {
        x--
        result += i * (10.0.pow(x.toDouble())).toInt()
    }

    return result
}

//pat 1017
//这道题用kotlin会超时，用BigInteger会超时用java也会超时
//java版 能通过前3个用例
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        BufferedReader sc = new BufferedReader(new InputStreamReader(System.in));
        String[] ss = null;
        int ti;
        int tmp = 0;
        boolean isFirst = true;
        try {
            ss = sc.readLine().split(" ");
        } catch (IOException e) {
            e.printStackTrace();
        }

        if (ss != null) {
            final char[] s1 = ss[0].toCharArray();
            final int i2 = Integer.parseInt(ss[1]);
            if (s1.length < 10) {
                int i = Integer.parseInt(String.copyValueOf(s1));
                System.out.print(i / i2 + " " + i % i2);
            } else {

                for (char c : s1) {
                    ti = c - '0';
                    tmp = tmp * 10 + ti;
                    if (tmp < i2 && isFirst) {
                        //nothing
                    } else if (tmp < i2) {
                        System.out.print(0);
                    } else {
                        ti = tmp / i2;
                        System.out.print(ti);
                        tmp -= ti*i2;
                    }
                    isFirst = false;
                }

                System.out.print(" " + tmp);
                //17636684150141093474 3
                //17636684150141093474 3
            }
        }
    }
}



//kt版 全超时 但是答案是对的
package pat_basic

import java.io.BufferedReader
import java.io.InputStreamReader

fun main(args: Array<String>) {

    val kin = BufferedReader(InputStreamReader(System.`in`))
    val ss = kin.readLine().split(' ')
    val b1 = ss[0].toCharArray() //除数
    val b2 = ss[1].toInt() //被除
    var ti = 0
    var tmp = 0
    var isfirst = true

    if (b1.size < 10){
        val i = ss[0].toInt()
        print("${i/b2} ${i%b2}")
    } else {
        b1.forEach {
            ti = it - '0'
            tmp = tmp * 10 + ti
            if (tmp < b2 && !isfirst) {
                print(0)
            } else if (tmp < b2 && isfirst) {
                //nothing
            } else {
                ti = tmp / b2
                print(ti)
                tmp %= b2
            }
            isfirst = false
        }
        print(" $tmp")
    }
}

//最后一个用例超时
//1018
import java.util.*

fun main(args: Array<String>) {
    val kin = Scanner(System.`in`)
    var total = kin.nextInt()
    var a:String
    var b:String
    val wl = intArrayOf(0,0,0)//a b
    val wina = intArrayOf(0,0,0)//cjb
    val winb = intArrayOf(0,0,0)
    while (total-- >0){
        a = kin.next()
        b = kin.next()

        if (a == b)
            wl[1]++
        else if (a == "J" && b == "C"){
            wl[2]++
            winb[0]++
        } else if(a == "J" && b == "B"){
            wl[0]++
            wina[1]++
        } else if (a == "C" && b == "J"){
            wl[0]++
            wina[0]++
        } else if (a=="C" && b=="B"){
            wl[2]++
            winb[2]++
        } else if(a == "B" && b == "J"){
            wl[2]++
            winb[1]++
        } else if (a=="B" && b == "C"){
            wl[0]++
            wina[2]++
        }
    }

    println("${wl[0]} ${wl[1]} ${wl[2]}")
    println("${wl[2]} ${wl[1]} ${wl[0]}")

    //b c j 2 0 1
    if (wina[1] > wina[0] && wina[1] > wina[2])
        print('J')
    else if (wina[0] >= wina[1] && wina[0] > wina[2] )
        print('C')
    else print('B')

    print(" ")
    
    if (winb[1] > winb[0] && winb[1] > winb[2])
        print('J')
    else if (winb[0] >= winb[1] && winb[0] > winb[2] )
        print('C')
    else print('B')

}

//1019

import java.io.BufferedReader
import java.io.InputStreamReader

fun main(args: Array<String>) {
    val kin = BufferedReader(InputStreamReader(System.`in`))
    var str = kin.readLine()
    var strs :CharArray
    var num = str.toInt()
    var m: Int
    var n: Int
    var isFirst = true
    while (true) {
        if (!isFirst)
            println()
        else
            isFirst = false
        strs = String.format("%04d",num).toCharArray()

        //println(strs)
        strs.sortDescending()
        String(strs).toInt()
        m =  String(strs).toInt()
        strs.sort()
        n =  String(strs).toInt()
        num = m - n
        System.out.printf("%04d - %04d = %04d", m, n, num)
        if (num == 6174 || num == 0) {
            break
        }
    }
}

最后编辑于：2020.10.13 17:25:45