코딩테스트 입문 - Day 7

특정 문자 제거하기

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class Solution {
    public String solution(String my_string, String letter) {
        return my_string.replace(letter,"");
    }
}

각도기

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class Solution {
    public int solution(int angle) {
        if(angle < 90){
            return 1;
        }
        else if(angle == 90){
            return 2;
        }
        else if(angle < 180){
            return 3;
        } else {
            return 4;
        }
    }
}

양꼬치

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class Solution {
    public int solution(int n, int k) {
        return n*12000 + k*2000 - n/10*2000;
    }
}

짝수의 합

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class Solution {
    public int solution(int n) {
        n = n - n%2;
        int answer = 0;
        while(n > 0){
            answer += n;
            n -= 2;
        }
        return answer;
    }
}