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Commit ba25dce

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Lv2_교점에별만들기
1 parent ece6c81 commit ba25dce

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3 files changed

+76
-0
lines changed

3 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 <climits>
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#include <algorithm>
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using namespace std;
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vector<string> solution(vector<vector<int>> line) {
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vector<string> answer;
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vector<pair<long long, long long>> cross;
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long long minX = LLONG_MAX, minY = LLONG_MAX;
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long long maxX = LLONG_MIN, maxY = LLONG_MIN;
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for (int i = 0; i < line.size() - 1; ++i) {
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long long a = line[i][0];
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long long b = line[i][1];
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long long e = line[i][2];
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for (int j = i + 1; j < line.size(); ++j) {
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long long c = line[j][0];
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long long d = line[j][1];
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long long f = line[j][2];
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long long x1 = b * f - e * d;
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long long y1 = e * c - a * f;
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long long common = a * d - b * c;
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if (common == 0)
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continue;
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if (x1 % common == 0 && y1 % common==0) {
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long long ix = x1 / common;
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long long iy = y1 / common;
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if (maxX < ix)
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maxX = ix;
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if (minX > ix)
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minX = ix;
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if (maxY < iy)
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maxY = iy;
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if (minY > iy)
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minY = iy;
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cross.push_back({ ix, iy });
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}
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}
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}
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string s = "";
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for (long long j = 0; j <= maxX - minX; ++j)
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s += ".";
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for (long long i = 0; i <= maxY - minY; ++i)
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answer.push_back(s);
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for (auto a : cross)
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answer[a.second - minY][a.first - minX] = '*';
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reverse(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<vector<int>> line = {{2, -1, 4}, {-2, -1, 4}, {0, -1, 1}, {5, -8, -12}, {5, 8, 12}};
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vector<vector<int>> line1 = { {0, 1, -1},{1, 0, -1},{1, 0, 1 }};
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vector<string> answer = solution(line);
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for (auto a : answer)
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cout << a << endl;
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return 0;
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}

‎Programmers/Programmers.vcxproj

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<ClCompile Include="Lv2\Lv2_괄호회전하기.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_교점에별만들기.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_구명보트.cpp">
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<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
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</ClCompile>

‎Programmers/Programmers.vcxproj.filters

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<ClCompile Include="Lv2\Lv2_삼각달팽이.cpp">
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<Filter>소스 파일\Lv2</Filter>
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</ClCompile>
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<ClCompile Include="Lv2\Lv2_교점에별만들기.cpp">
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<Filter>소스 파일\Lv2</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<None Include="packages.config" />

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