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Decode String #94

Closed
Tracked by #101
fkdl0048 opened this issue Oct 15, 2024 · 0 comments
Closed
Tracked by #101

Decode String #94

fkdl0048 opened this issue Oct 15, 2024 · 0 comments
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@fkdl0048
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fkdl0048 commented Oct 15, 2024

// stack을 활용하여 풀이
// 먼저 

class Solution {
public:
    string decodeString(string s) {
        stack<int> countStack;
        stack<string> resultStack;
        string current = "";
        int k = 0;

        for (char c : s) {
            if (isdigit(c)) {
                k = k * 10 + (c - '0');
            }
            else if (c == '[') {
                countStack.push(k);
                resultStack.push(current);
                k = 0;
                current = "";
            } 
            else if (c == ']') {
                int repeatTimes = countStack.top();
                countStack.pop();

                string temp = resultStack.top();
                resultStack.pop();

                for (int i = 0; i < repeatTimes; i++) {
                    temp += current;
                }

                current = temp;
            }
            else {
                current += c;
            }
        }

        return current;
    }
};
  • 오늘 푼 문제중 가장 재밌던 문제, 뭔가 깔끔하고 실제로 데이터를 줄이기 위해 인코딩 디코딩 방식에 대해서 궁금증이 생김
  • 시간 때문에 다른 풀이를 보니 stringBulider를 사용하는 경우도 있는듯
@fkdl0048 fkdl0048 mentioned this issue Oct 15, 2024
7 tasks
@fkdl0048 fkdl0048 self-assigned this Oct 15, 2024
@fkdl0048 fkdl0048 added this to Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this to Todo in Todo Oct 15, 2024
@fkdl0048 fkdl0048 moved this from Todo to In Progress in Todo Oct 15, 2024
@fkdl0048 fkdl0048 added this to the LeetCode milestone Oct 15, 2024
@github-project-automation github-project-automation bot moved this from In Progress to Done in Todo Oct 15, 2024
@fkdl0048 fkdl0048 reopened this Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Done to Todo in Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Todo to Done in Todo Oct 15, 2024
@fkdl0048 fkdl0048 mentioned this issue Oct 15, 2024
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