Your task is to find for a given phone number any of its divisions into groups of two or three digit

D - Phone numbers

代码：Happy-训练6-D

import java.util.Scanner;

public class Main {
public static void main(String[] args){
    int n,i=0,m=1;
    Scanner scan=new Scanner(System.in);
    n=scan.nextInt();
    char[] s=scan.next().toCharArray();
    if(n%2==0){
    for(i=0;i<n;i=i+2){
    if(i<2){
      System.out.printf("%c%c",s[i],s[i+1]);
    }
    else{//i>=2时
      System.out.printf("-%c%c",s[i],s[i+1]);
    }
    }}
    else{//n%2!0时
    for(i=0;i<n;i=i+m){
        if(i==0){
         System.out.printf("%c%c",s[i],s[i+1]);
         m=2;
         //i=i+2;
    }
        if(i>=2&&i<n-2){
        //for(i=2;i<n-2;i=i+3)
        System.out.printf("-%c%c%c",s[i],s[i+1],s[i+2]);
        m=3;
        //i=i+3;
        }
        if(i==n-2){
        System.out.printf("-%c%c",s[n-2],s[n-1]);
        break;
        }}
    }
}
}

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Your task is to find for a given phone number any of its divisions into groups of two or three digit

D - Phone numbers

Your task is to find for a given phone number any of its divisions into groups of two or three digit相关推荐

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