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Commit c04a7fa

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Lv2_빛의경로사이클
1 parent d3486a1 commit c04a7fa

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2 files changed

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#include <string>
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#include <vector>
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#include <iostream>
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#include <algorithm>
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using namespace std;
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int n,m;
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vector<int> answer;
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bool check[500][500][4];
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char arr[500][500];
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int dx[4] = { 0,1,0,-1 }; // 위 오른쪽 아래 왼쪽
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int dy[4] = { -1,0,1,0 };
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void dfs(int y, int x, int dir, int cnt) {
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if (check[y][x][dir]) {
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answer.push_back(cnt - 1);
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return;
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}
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check[y][x][dir] = true;
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char c = arr[y][x];
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int ny, nx;
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int nd = dir;
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if (c == 'L')
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nd = (dir + 3) % 4;
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else if (c == 'R')
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nd = (dir + 1) % 4;
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ny = y + dy[nd];
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nx = x + dx[nd];
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if (ny < 0)
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ny += n;
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else if (ny >= n)
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ny -= n;
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if (nx < 0)
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nx += m;
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else if (nx >= m)
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nx -= m;
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dfs(ny, nx, nd, cnt + 1);
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}
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vector<int> solution(vector<string> grid) {
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n = grid.size();
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m = grid[0].size();
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for (int i = 0; i < n; i++)
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for (int j = 0; j < m; j++)
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arr[i][j] = grid[i][j];
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for (int i = 0; i < n; i++) {
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for (int j = 0; j < m; j++) {
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for (int k = 0; k < 4; k++) {
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if (check[i][j][k]) // 갔던 곳은 pass
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continue;
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dfs(i, j, k, 1);
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}
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}
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}
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sort(answer.begin(), answer.end());
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return answer;
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}
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int main() {
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vector<string> grid = { "SL", "LR" };
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vector<int> ans = solution(grid);
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for (auto a : ans)
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cout << a << " ";
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return 0;
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}

‎Programmers/Programmers.vcxproj

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<ClCompile Include="Lv2\Lv2_메뉴리뉴얼.cpp">
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<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
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</ClCompile>
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<ClCompile Include="Lv2\Lv2_빛의경로사이클.cpp">
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<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
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</ClCompile>
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<ClCompile Include="Lv2\Lv2_소수만들기.cpp">
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<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
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</ClCompile>

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