Submission #1166907

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166907		achi	Patkice (COCI20_patkice)	C++17	50 / 50	0 ms	328 KiB

patkice

#include <bits/stdc++.h>

using namespace std;

pair<int, int> getPos (char direct, pair<int, int> pos) {
    if (direct == 'N' || direct == '^') return {pos.first-1, pos.second};
    if (direct == 'S' || direct == 'v') return {pos.first+1, pos.second};
    if (direct == 'E' || direct == '>') return {pos.first, pos.second+1};
    return {pos.first, pos.second-1};
}

int main () {
    cin.tie(0)->sync_with_stdio(0);
    int r, s;
    cin >> r >> s;
    char c;
    pair<int, int> init_pos;
    vector<vector<char>> grid(r, vector<char>(s));

    for (int i = 0; i < r; i++) {
        for (int j = 0; j < s; j++) {
            cin >> c;
            grid[i][j] = c;
            if (c == 'o') init_pos = {i, j};
        }
    }

    vector<pair<int, char>> valid;
    vector<char> direction = {'N', 'E', 'S', 'W'};

    int dist = 0;
    for (int i = 0; i < 4; i++) {
        pair<int, int> pos = getPos(direction[i], init_pos);
        dist = 0;
        while (grid[pos.first][pos.second] != '.') {
            if (grid[pos.first][pos.second] == 'x') {
                valid.push_back({dist, direction[i]});
                break;
            }
            pos = getPos(grid[pos.first][pos.second], pos);
            dist++;
            if (grid[pos.first][pos.second] == 'o') {
                break;
            }
        }
    }
    if (valid.empty()) {
        cout << ":(";
        return 0;
    }
    sort(valid.begin(), valid.end());
    cout << ":)\n" << valid.front().second;

    return 0;
}

• Subtask 1: 30 / 30
• Subtask 2: 20 / 20