PAT乙级1009 说反话 (20 分)

Posted 2021-06-19 辉小歌

https://pintia.cn/problem-sets/994805260223102976/problems/994805314941992960

朴素写法:

#include<stdio.h>
#include<string.h>
int main(void)
{
	int num=0;
	int i,h;
	char a[90];
	char ans[90][90];
	gets(a);
	for(i=0;i<strlen(a);i++)
	{
		if(a[i]!=' ')
		{
			ans[num][h++]=a[i];
		}
		else
		{
			ans[num][h]='\\0';
			num++;
			h=0;
		}
	}
	for(i=num;i>=0;i--)
	{
		printf("%s",ans[i]);
		if(i>0)
		printf(" ");
	}
	return 0;
}

精简写法:

#include<cstdio>
#include<iostream>
#include<string>
#include<sstream>
#include<vector>
using namespace std;
int main(void)
{
	string s;
	getline(cin,s);
	vector<string> ve;
	string ans;
	stringstream ll(s);
	while(ll>>ans) ve.push_back(ans);
	for(int i=ve.size()-1;i>=0;i--)
	{
		cout<<ve[i];
		if(i!=0) cout<<" ";
	}
}