Submission #83789

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
83789	2018-11-10 15:19:43	teomrn	Tracks in the Snow (BOI13_tracks)	C++14	100 / 100	1847 ms	877628 KiB

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#include <bits/stdc++.h>
using namespace std;
char mat[4010][4010];
vector <pair <int, int>> de_add, added, dir = { { -1, 0 }, { 1, 0 }, { 0, -1 }, { 0, 1 } };
int n, m;
char c;
void dfs(int a, int b)
{
    mat[a][b] = '?';
    de_add.push_back({ a, b });
    for (auto i : dir)
        if (mat[a + i.first][b + i.second] == c)
            dfs(a + i.first, b + i.second);
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= n; i++)
        cin >> (mat[i] + 1);
    int ans = 0;
    c = mat[1][1];
    if (c == '.')
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 70 / 70