华为机试—删除相同子串

输入两个字符串，找出在第一个字符串中，有多少个第二个子串，输出个数，并输出删除全部第二个子串后的字符串。

输入：abcdcde cd

输出：2 abe

#include <iostream>
#include <string>
using namespace std;

int delete_sub_str(const char *str,const char *sub_str,char *result)
{
	const char *p,*q;
	char *t,*tmp;
	int n=0;
	int num=0;//相同子串个数
	p=str;
	q=sub_str;
	t=result;
	n=strlen(q);
	tmp =new char[n+1];
	memset(tmp,0,n+1);
	while (*p)
	{
	    memcpy(tmp,p,n);//从p的初始位置开始拷贝n个字符到tmp
		if (strcmp(tmp,q)==0)//tmp=q
		{
			num++;
			memset(tmp,0,n+1);
			p=p+n;
		}
		else
		{      
			*t = *p;
			p++;
			t++;
			memset(tmp,0,n+1);
		}
	}
	delete tmp;
	return num;
}

void main()
{
	char s[100] = {'\0'};
	int num = delete_sub_str("123abc123de1234fg1hi34j123k","123",s);
    cout<<num<<endl;
	cout<<s<<endl;
}

import java.util.Scanner;


public class deleteCuan {

	public static void main(String[] args) {

		Scanner s = new Scanner(System.in);
		String str = s.nextLine();
		
		Scanner s1 = new Scanner(System.in);
		String str1 = s1.nextLine();
		
		int count=0;
		
		int k = str.indexOf(str1);
		while(k!=-1){
			count++;
			k=str.indexOf(str1,k+str1.length());
		}
		
		System.out.println(count);
		System.out.println(str.replace(str1,""));
	}

}