๐Ÿ’  Cpp/[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ๊ณ ๋“์  Kit

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค][C++] ์™„์ฃผํ•˜์ง€ ๋ชปํ•œ ์„ ์ˆ˜ (level1)

์„ ๋‹ฌ 2025. 1. 5. 05:49
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๋ฌธ์ œ

์ˆ˜๋งŽ์€ ๋งˆ๋ผํ†ค ์„ ์ˆ˜๋“ค์ด ๋งˆ๋ผํ†ค์— ์ฐธ์—ฌํ•˜์˜€์Šต๋‹ˆ๋‹ค. ๋‹จ ํ•œ ๋ช…์˜ ์„ ์ˆ˜๋ฅผ ์ œ์™ธํ•˜๊ณ ๋Š” ๋ชจ๋“  ์„ ์ˆ˜๊ฐ€ ๋งˆ๋ผํ†ค์„ ์™„์ฃผํ•˜์˜€์Šต๋‹ˆ๋‹ค. ๋งˆ๋ผํ†ค์— ์ฐธ์—ฌํ•œ ์„ ์ˆ˜๋“ค์˜ ์ด๋ฆ„์ด ๋‹ด๊ธด ๋ฐฐ์—ด participant์™€ ์™„์ฃผํ•œ ์„ ์ˆ˜๋“ค์˜ ์ด๋ฆ„์ด ๋‹ด๊ธด ๋ฐฐ์—ด completion์ด ์ฃผ์–ด์งˆ ๋•Œ, ์™„์ฃผํ•˜์ง€ ๋ชปํ•œ ์„ ์ˆ˜์˜ ์ด๋ฆ„์„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์ž‘์„ฑํ•ด์ฃผ์„ธ์š”. ์ œํ•œ์‚ฌํ•ญ ๋งˆ๋ผํ†ค ๊ฒฝ๊ธฐ์— ์ฐธ์—ฌํ•œ ์„ ์ˆ˜์˜ ์ˆ˜๋Š” 1๋ช… ์ด์ƒ 100,000๋ช… ์ดํ•˜์ž…๋‹ˆ๋‹ค. completion์˜ ๊ธธ์ด๋Š” participant์˜ ๊ธธ์ด๋ณด๋‹ค 1 ์ž‘์Šต๋‹ˆ๋‹ค. ์ฐธ๊ฐ€์ž์˜ ์ด๋ฆ„์€ 1๊ฐœ ์ด์ƒ 20๊ฐœ ์ดํ•˜์˜ ์•ŒํŒŒ๋ฒณ ์†Œ๋ฌธ์ž๋กœ ์ด๋ฃจ์–ด์ ธ ์žˆ์Šต๋‹ˆ๋‹ค. ์ฐธ๊ฐ€์ž ์ค‘์—๋Š” ๋™๋ช…์ด์ธ์ด ์žˆ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ž…์ถœ๋ ฅ ์˜ˆ participant completion return ["leo", "kiki", "eden"] ["eden", "kiki"] "leo" ["marina", "josipa", "nikola", "vinko", "filipa"] ["josipa", "filipa", "marina", "nikola"] "vinko" ["mislav", "stanko", "mislav", "ana"] ["stanko", "ana", "mislav"] "mislav" ์ž…์ถœ๋ ฅ ์˜ˆ ์„ค๋ช… ์˜ˆ์ œ #1 "leo"๋Š” ์ฐธ์—ฌ์ž ๋ช…๋‹จ์—๋Š” ์žˆ์ง€๋งŒ, ์™„์ฃผ์ž ๋ช…๋‹จ์—๋Š” ์—†๊ธฐ ๋•Œ๋ฌธ์— ์™„์ฃผํ•˜์ง€ ๋ชปํ–ˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ์ œ #2 "vinko"๋Š” ์ฐธ์—ฌ์ž ๋ช…๋‹จ์—๋Š” ์žˆ์ง€๋งŒ, ์™„์ฃผ์ž ๋ช…๋‹จ์—๋Š” ์—†๊ธฐ ๋•Œ๋ฌธ์— ์™„์ฃผํ•˜์ง€ ๋ชปํ–ˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ์ œ #3 "mislav"๋Š” ์ฐธ์—ฌ์ž ๋ช…๋‹จ์—๋Š” ๋‘ ๋ช…์ด ์žˆ์ง€๋งŒ, ์™„์ฃผ์ž ๋ช…๋‹จ์—๋Š” ํ•œ ๋ช…๋ฐ–์— ์—†๊ธฐ ๋•Œ๋ฌธ์— ํ•œ๋ช…์€ ์™„์ฃผํ•˜์ง€ ๋ชปํ–ˆ์Šต๋‹ˆ๋‹ค. โ€ป ๊ณต์ง€ - 2023๋…„ 01์›” 25์ผ ํ…Œ์ŠคํŠธ์ผ€์ด์Šค๊ฐ€ ์ถ”๊ฐ€๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

 

ํ’€์ด

#include <string>
#include <vector>
#include <algorithm>

using namespace std;

string solution(vector<string> participant, vector<string> completion) {
    string answer = "";
    
    sort(participant.begin(), participant.end());
    sort(completion.begin(), completion.end());
    
    answer = participant[participant.size() - 1];
    for(int i=0; i<completion.size(); i++) {
        if(participant[i] != completion[i]) {
            answer = participant[i];
            break;
        }
    }
    
    return answer;
}
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