ZOJ 【简单 / 字符串】

https://www.nowcoder.com/practice/7557d470617c464f9200d93acf721471?tpId=40&tqId=21462&rp=1&ru=%2Fta%2Fkaoyan&qru=%2Fta%2Fkaoyan%2Fquestion-ranking&tab=answerKey

#include<cstdio>
#include<iostream>
#include<string>
#include<sstream>
#include<algorithm> 
using namespace std;
int z;//统计z的个数
int o;//统计o的个数
int j;//统计j的个数
int main(void)
{
    
    
	string s;cin>>s;
	for(int i=0;i<s.size();i++)
	{
    
    
		if(s[i]=='Z') z++;
		if(s[i]=='O') o++;
		if(s[i]=='J') j++;
	}
	while( z!=0 || o!=0 || j!=0 )
	{
    
    
		if(z>0) cout<<"Z"; z--;
		if(o>0) cout<<"O"; o--;
		if(j>0) cout<<"J"; j--;
	}
	return 0;
}