STL练习——registration system

最新推荐文章于 2024-11-23 15:00:22 发布

AndyMoe

最新推荐文章于 2024-11-23 15:00:22 发布

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本文介绍了一个使用C++实现的简单用户名注册系统。该系统能够处理重复用户名，并为已存在的用户名生成带数字后缀的新版本。代码展示了如何读取输入、比较字符串以及输出响应。

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#include<cstdio>
#include<iostream>
#include<cstring>

using namespace std;

int main(){
	int nCase,n;
	char str[105][1005],a[105];
	scanf("%d",&nCase);
	n=nCase;
	for(int i=0;i<n;i++)
		a[i]='0';
	while(nCase--){
		int j=1;
		scanf("%s",str[n-nCase]);
		for(int i=0;i<n-nCase;i++)
			if(strcmp(str[i],str[n-nCase])==0){
				a[i]++;
				int d=strlen(str[n-nCase]);
				str[n-nCase][d]=a[i];
				printf("%s%c\n",str[i],a[i]);
				j=0;
				break;
			}
			if(j){
				printf("OK\n");
			}
	}
	return 0;

	}

输入The first line contains number n (1 ≤ n ≤ 105). The following n lines contain the requests to the system. Each request is a non-empty line, and consists of not more than 1000 characters, which are all lowercase Latin letters.输出Print n lines, which are system responses to the requests: OK in case of successful registration, or a prompt with a new name, if the requested name is already taken.样例输入