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[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค][C++] ๋ชจ์˜๊ณ ์‚ฌ (level1)

์„ ๋‹ฌ 2025. 1. 5. 07:33
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๋ฌธ์ œ

์ˆ˜ํฌ์ž๋Š” ์ˆ˜ํ•™์„ ํฌ๊ธฐํ•œ ์‚ฌ๋žŒ์˜ ์ค€๋ง์ž…๋‹ˆ๋‹ค. ์ˆ˜ํฌ์ž ์‚ผ์ธ๋ฐฉ์€ ๋ชจ์˜๊ณ ์‚ฌ์— ์ˆ˜ํ•™ ๋ฌธ์ œ๋ฅผ ์ „๋ถ€ ์ฐ์œผ๋ ค ํ•ฉ๋‹ˆ๋‹ค. ์ˆ˜ํฌ์ž๋Š” 1๋ฒˆ ๋ฌธ์ œ๋ถ€ํ„ฐ ๋งˆ์ง€๋ง‰ ๋ฌธ์ œ๊นŒ์ง€ ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ฐ์Šต๋‹ˆ๋‹ค. 1๋ฒˆ ์ˆ˜ํฌ์ž๊ฐ€ ์ฐ๋Š” ๋ฐฉ์‹: 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, ... 2๋ฒˆ ์ˆ˜ํฌ์ž๊ฐ€ ์ฐ๋Š” ๋ฐฉ์‹: 2, 1, 2, 3, 2, 4, 2, 5, 2, 1, 2, 3, 2, 4, 2, 5, ... 3๋ฒˆ ์ˆ˜ํฌ์ž๊ฐ€ ์ฐ๋Š” ๋ฐฉ์‹: 3, 3, 1, 1, 2, 2, 4, 4, 5, 5, 3, 3, 1, 1, 2, 2, 4, 4, 5, 5, ... 1๋ฒˆ ๋ฌธ์ œ๋ถ€ํ„ฐ ๋งˆ์ง€๋ง‰ ๋ฌธ์ œ๊นŒ์ง€์˜ ์ •๋‹ต์ด ์ˆœ์„œ๋Œ€๋กœ ๋“ค์€ ๋ฐฐ์—ด answers๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ๊ฐ€์žฅ ๋งŽ์€ ๋ฌธ์ œ๋ฅผ ๋งžํžŒ ์‚ฌ๋žŒ์ด ๋ˆ„๊ตฌ์ธ์ง€ ๋ฐฐ์—ด์— ๋‹ด์•„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์ž‘์„ฑํ•ด์ฃผ์„ธ์š”. ์ œํ•œ ์กฐ๊ฑด ์‹œํ—˜์€ ์ตœ๋Œ€ 10,000 ๋ฌธ์ œ๋กœ ๊ตฌ์„ฑ๋˜์–ด์žˆ์Šต๋‹ˆ๋‹ค. ๋ฌธ์ œ์˜ ์ •๋‹ต์€ 1, 2, 3, 4, 5์ค‘ ํ•˜๋‚˜์ž…๋‹ˆ๋‹ค. ๊ฐ€์žฅ ๋†’์€ ์ ์ˆ˜๋ฅผ ๋ฐ›์€ ์‚ฌ๋žŒ์ด ์—ฌ๋Ÿฟ์ผ ๊ฒฝ์šฐ, returnํ•˜๋Š” ๊ฐ’์„ ์˜ค๋ฆ„์ฐจ์ˆœ ์ •๋ ฌํ•ด์ฃผ์„ธ์š”. ์ž…์ถœ๋ ฅ ์˜ˆ answers return [1,2,3,4,5] [1] [1,3,2,4,2] [1,2,3] ์ž…์ถœ๋ ฅ ์˜ˆ ์„ค๋ช… ์ž…์ถœ๋ ฅ ์˜ˆ #1 ์ˆ˜ํฌ์ž 1์€ ๋ชจ๋“  ๋ฌธ์ œ๋ฅผ ๋งžํ˜”์Šต๋‹ˆ๋‹ค. ์ˆ˜ํฌ์ž 2๋Š” ๋ชจ๋“  ๋ฌธ์ œ๋ฅผ ํ‹€๋ ธ์Šต๋‹ˆ๋‹ค. ์ˆ˜ํฌ์ž 3์€ ๋ชจ๋“  ๋ฌธ์ œ๋ฅผ ํ‹€๋ ธ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ๊ฐ€์žฅ ๋ฌธ์ œ๋ฅผ ๋งŽ์ด ๋งžํžŒ ์‚ฌ๋žŒ์€ ์ˆ˜ํฌ์ž 1์ž…๋‹ˆ๋‹ค. ์ž…์ถœ๋ ฅ ์˜ˆ #2 ๋ชจ๋“  ์‚ฌ๋žŒ์ด 2๋ฌธ์ œ์”ฉ์„ ๋งž์ท„์Šต๋‹ˆ๋‹ค.

 

ํ’€์ด

#include <string>
#include <vector>

using namespace std;

vector<vector<int>>omrs = {{1,2,3,4,5}, {2,1,2,3,2,4,2,5}, {3,3,1,1,2,2,4,4,5,5}};

int getScore(vector<int>&answers, vector<int>&omr) {
    int score = 0;
    
    int n = omr.size();
    for(int i=0; i<answers.size(); i++) {
        if(omr[i%n] == answers[i]) {
            score++;
        }
    } 
    
    return score;
}

vector<int> solution(vector<int> answers) {
    vector<int> answer;
    int n = omrs.size();
    
    int max_score = 0;
    vector<int>scores(3);
    for(int i=0; i<n; i++) {
        vector<int> omr = omrs[i];
        scores[i] = getScore(answers, omr);
        max_score = max(scores[i], max_score);
    }
    for(int i=0; i<n; i++) {
        if(max_score == scores[i]) {
            answer.push_back(i+1);
        }
    }
    
    return answer;
}
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