๐Ÿ˜ช1620 ๋‚˜๋Š”์•ผ ํฌ์ผ“๋ชฌ ๋งˆ์Šคํ„ฐ ์ด๋‹ค์†œ string์œผ๋กœ ๋“ค์–ด์˜ค๋Š” ๊ฒƒ์„ ์–ด๋–ป๊ฒŒ ์ˆซ์ž์™€ string์œผ๋กœ ๊ตฌ๋ณ„ํ•  ๊ฒƒ์ธ๊ฐ€?

phoenixKimยท2022๋…„ 5์›” 21์ผ
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string์ด ์ˆซ์ž์ธ์ง€, ๋ฌธ์ž์ธ์ง€?

https://velog.io/@kwt0124/int-string-string-int

์ตœ๊ทผ ํ’€์ด : 231122

  • ์ด๋ฒˆ์—๋Š” ์ˆซ์ž์ฒดํฌํ•˜๋Š” ๋ฐฉ๋ฒ•์œผ๋กœ ์ ‘๊ทผํ•จ.
    -> endl ์œผ๋กœ ํ•˜๋ฉด ์‹œ๊ฐ„ ์ดˆ๊ณผํ•จ...

์—…๋กœ๋“œ์ค‘..

์ˆ™์ œ

: c_str๋กœ๋„ ํ’€์–ด๋ด์•ผ ํ•จ.

๐Ÿ˜ช์•Œ์•„์•ผ ํ• ์ .

  • string์œผ๋กœ ์ž…๋ ฅ ๋ฐ›๋Š” ๊ฒƒ์„ ์ˆซ์ž๋กœ ๋ณ€๊ฒฝ ์–ด๋–ป๊ฒŒ ํ•  ๊ฒƒ์ธ๊ฐ€?

์ฒซ๋ฒˆ์งธ ์ฝ”๋“œ

// ์ถ”๊ฐ€์ ์œผ๋กœ 2์ค„์˜ ์ฝ”๋“œ๊ฐ€ ํ•„์š”ํ•จ...
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);

#include <stdio.h>
#include <iostream>
#include <string>
using namespace std;
#include <unordered_map>
#include <map>
int main()
{
	
	map<string, int>m1;
	map<int, string>m2;

	int n1, n2;
	cin >> n1 >> n2;

	string word;
	
	for (int i = 0; i < n1; i++)
	{
		cin >> word;
		m1.insert({ word, i + 1 });
		m2.insert({ i + 1 , word});

	}
	cin.ignore();
	for (int i = 0; i < n2; i++)
	{
		cin >> word;
		
		int temp = atoi(word.c_str());

		//๋ฌธ์ž์—ด
		if (temp == 0 && word.compare("0") != 0)
		{
			//m1์€ ์ž…๋ ฅ๊ฐ’์ด string์ผ ๊ฒฝ์šฐ.
			//auto iter = m1.find(word);
			cout << m1[word] << '\n';
		}
		//์ˆซ์ž
		else
		{
			//m2์€ ์ž…๋ ฅ๊ฐ’์ด int์ผ ๊ฒฝ์šฐ.
			//auto iter = m2.find(temp);
			cout << m2[temp] << '\n';

		}


	}
	
}

๋‘๋ฒˆ์žฌ ํ’€์ด

: ์ •์ˆ˜์ฒดํฌ ํ™•์ธํ•˜๋Š” ํ•จ์ˆ˜ ๊ธฐ์–ต์ด ์•ˆ๋‚˜์„œ,
๊ทธ๋ƒฅ string์˜ ์ฒซ๋‹จ์–ด๋กœ ์ •์ˆ˜์ธ์ง€ ๋ฌธ์ž์—ด์ธ์ง€ ํ™•์ธํ•ด์„œ ์ง„ํ–‰ํ•จ...

#include <iostream>
using namespace std;

#include <vector>

#include <string>
#include <map>


int main()
{
    ios_base::sync_with_stdio(false);
	cin.tie(NULL); cout.tie(NULL);
	int n, m;
	cin >> n >> m;

	map<int, string >m1;
	map<string, int>m2;

	for (int i = 1; i <= n; ++i)
	{
		string s;
		cin >> s;

		m1[i] = s;
		m2[s] = i;
	}

	for (int i = 0; i < m; ++i)
	{
		// ๋ฌธ์ž์—ด์ด ๋“ค์–ด์˜ฌ ์ˆ˜ ์žˆ๊ณ .. ์ˆซ์ž๊ฐ€ ๋“ค์–ด์˜ฌ ์ˆ˜ ์žˆ์Œ.
		string s;
		cin >> s;

		if (s[0] >= 'A' && s[0] <= 'Z')
		{
			cout << m2[s] << '\n';
		}
		// ์ˆซ์ž์ผ ๊ฒฝ์šฐ.
		else
		{
			cout << m1[stoi(s)] << '\n';
		}

	}


}
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