Submission #1096991

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1096991	2024-10-05 16:19:33	raphaelp	Game (eJOI20_game)	C++14	100 / 100	1 ms	600 KiB

game

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#include <bits/stdc++.h>
using namespace std;
int dfs(pair<int, int> init, pair<int, int> p, int x, int y, vector<string> &H, vector<string> &V, vector<vector<int>> &occ, int N, int M, vector<int> &ones, vector<int> &fours, vector<int> &eights)
{
    occ[x][y] = 1;
    int tot = 1;
    if ((x > 0 && occ[x - 1][y] && H[x][y] == '0' && !(p.first == x - 1 && p.second == y)) || (x < N - 1 && occ[x + 1][y] && H[x + 1][y] == '0' && !(p.first == x + 1 && p.second == y)) || (y > 0 && occ[x][y - 1] && V[x][y] == '0' && !(p.first == x && p.second == y - 1)) || (y < M - 1 && occ[x][y + 1] && V[x][y + 1] == '0' && !(p.first == x && p.second == y + 1)))
        return -1;
    if (x > 0 && H[x][y] == '0' && !occ[x - 1][y])
        tot += dfs(init, {x, y}, x - 1, y, H, V, occ, N, M, ones, fours, eights);
    if (x < N - 1 && H[x + 1][y] == '0' && !occ[x + 1][y])
        tot += dfs(init, {x, y}, x + 1, y, H, V, occ, N, M, ones, fours, eights);
    if (y > 0 && V[x][y] == '0' && !occ[x][y - 1])
        tot += dfs(init, {x, y}, x, y - 1, H, V, occ, N, M, ones, fours, eights);
    if (y < M - 1 && V[x][y + 1] == '0' && !occ[x][y + 1])
        tot += dfs(init, {x, y}, x, y + 1, H, V, occ, N, M, ones, fours, eights);
    if ((tot == 1 || tot == 2) && init.first == x && init.second == y)
    {
        if (H[x][y] == '1' && H[x + 1][y] == '1' && V[x][y] == '1' && V[x][y + 1] == '1')
            tot = 0;
        else
            ones.push_back(-tot);
        return 0;
    }
    if (init.first == x && init.second == y)
    {
        if (tot < 1)
            eights.push_back(tot - 2);
        else
            fours.push_back(-tot);
 
 
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Compilation message (stderr)

game.cpp: In function 'int main()':
game.cpp:53:17: warning: unused variable 'temp' [-Wunused-variable]
   53 |             int temp = dfs({i, j}, {i, j}, i, j, H, V, occ, N, M, ones, fours, eights);
      |                 ^~~~
game.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     for (int i = 0; i < ones.size() / 2; i++)
      |                     ~~^~~~~~~~~~~~~~~~~
game.cpp:60:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |     for (int i = 0; i < fours.size() / 2; i++)
      |                     ~~^~~~~~~~~~~~~~~~~~
game.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |     for (int i = 0; i < eights.size() / 2; i++)
      |                     ~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20