ccf认证考试试题答案

2017-03-09 00:00:00小静 IBM认证

  CCF,中国计算机学会,英文全称为China Computer Federation,简称CCF,成立于1962年,是中国计算机科学与技术领域群众性学术团体,属一级学会,独立法人单位,是中国科学技术协会的成员。下面是小编整理的关于ccf认证考试试题答案,欢迎大家参考!

  1. 出现次数最多的数

  import java.util.*;

  public class Main {

  public static void main(String[] args) {

  new Main().run();

  }

  public void run() {

  Scanner fin = new Scanner(System.in);

  int N = fin.nextInt();

  int[] count = new int[10001];

  for (int i = 0; i < N; ++i) {

  ++count[fin.nextInt()];

  }

  int maxCount = -1;

  int result = 0;

  for (int i = 1; i <= 10000; ++i) {

  if (count[i] > maxCount) {

  maxCount = count[i];

  result = i;

  }

  }

  System.out.println(result);

  }

  }

  2.ISBN号码

  import java.io.BufferedReader;

  import java.io.InputStreamReader;

  public class Main {

  } public static void main(String args[]) { } BufferedReader bin = new BufferedReader(new InputStreamReader(System.in)); try{ } int sum=0;char cc='0'; String isbn_0 = bin.readLine(); String isbn = isbn_0.replace("-", ""); for(int i=0; i<9; i++){ } sum = sum % 11; if(sum == 10) cc = 'X';// else cc = (char)(sum+48); if(cc == isbn.charAt(9)) System.out.println("Right"); else{ } e.printStackTrace(); isbn_0 = isbn_0.substring(0,12) + cc; System.out.println(isbn_0); int ii = (int)isbn.charAt(i)-48; sum += ii * (i+1); }catch(Exception e){

  3.最大的矩形

  import java.util.*;

  public class Main {

  public static void main(String[] args) {

  new Main().run();

  }

  public void run() {

  Scanner fin = new Scanner(System.in);

  int N = fin.nextInt();

  int[] height = new int[N];

  for (int i = 0; i < N; ++i) height[i] = fin.nextInt();

  int result = 0;

  for (int i = 0; i < N; ++i) {

  int width = 1;

  for (int j = i - 1; j >= 0; --j) {

  if (height[j] < height[i]) break;

  ++width;

  }

  for (int j = i + 1; j < N; ++j) {

  if (height[j] < height[i]) break;

  ++width;

  }

  int area = width * height[i];

  result = Math.max(result, area);

  }

  System.out.println(result);

  }

  }

  4.有趣的数

  import java.util.*;

  public class Main {

  public static void main(String[] args) {

  new Main().run();

  }

  public void run() {

  Scanner fin = new Scanner(System.in);

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