oj.uz

Submission #211110

# Submission time Handle Problem Language Result Execution time Memory
211110 2020-03-19T08:46:47 Z Aldas25 Zoo (COCI19_zoo) C++14
110 / 110
 72 ms 17144 KB 
#include <bits/stdc++.h>

using namespace std;

#define FAST_IO ios_base::sync_with_stdio(0); cin.tie(nullptr)
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define REP(n) FOR(O, 1, (n))
#define f first
#define s second
#define pb push_back
typedef vector<int> vi;
typedef long long ll;
typedef pair<short, short> pii;
typedef vector<pii> vii;

const int MAXN = 16000100;

int n, m;
char grid[4100][4100];
bool checked[4100][4100];
deque<pii> q;
int d[4100][4100];
int curD = 0;

int main()
{
    FAST_IO;

    //ifstream in ("in.txt");

    cin >> n >> m;
    q.push_front({1,1});
    FOR(i, 1, n) FOR(j, 1, m) cin >> grid[i][j];

    //int cnt = 0;
    while (!q.empty()) {
        //int v = 0;
        while (!q.empty() && (checked[q.front().f][q.front().s] || grid[q.front().f][q.front().s]=='*')) {q.pop_front();}
        if (q.empty()) break;
        //cnt++; //curT++;c
        pii v = q.front(); q.pop_front();
        checked[v.f][v.s] = true;
        curD = d[v.f][v.s];

        if (v.f > 1 && !checked[v.f-1][v.s] && grid[v.f-1][v.s] == grid[v.f][v.s]) {
            d[v.f-1][v.s] = d[v.f][v.s];
            q.push_front({v.f-1, v.s});
        }
        if (v.s > 1 && !checked[v.f][v.s-1] && grid[v.f][v.s-1] == grid[v.f][v.s]) {
            d[v.f][v.s-1] = d[v.f][v.s];
            q.push_front({v.f, v.s-1});
        }
        if (v.f < n && !checked[v.f+1][v.s] && grid[v.f+1][v.s] == grid[v.f][v.s]) {
            d[v.f+1][v.s] = d[v.f][v.s];
            q.push_front({v.f+1, v.s});
        }
        if (v.s < m && !checked[v.f][v.s+1] && grid[v.f][v.s+1] == grid[v.f][v.s]) {
            d[v.f][v.s+1] = d[v.f][v.s];
            q.push_front({v.f, v.s+1});
        }


        if (v.f > 1 && !checked[v.f-1][v.s] && grid[v.f-1][v.s] != grid[v.f][v.s] && grid[v.f-1][v.s] != '*') {
            d[v.f-1][v.s] = d[v.f][v.s]+1;
            q.push_back({v.f-1, v.s});
        }
        if (v.s > 1 && !checked[v.f][v.s-1] && grid[v.f][v.s-1] != grid[v.f][v.s] && grid[v.f][v.s-1] != '*') {
            d[v.f][v.s-1] = d[v.f][v.s]+1;
            q.push_back({v.f, v.s-1});
        }
        if (v.f < n && !checked[v.f+1][v.s] && grid[v.f+1][v.s] != grid[v.f][v.s] && grid[v.f+1][v.s] != '*') {
            d[v.f+1][v.s] = d[v.f][v.s]+1;
            q.push_back({v.f+1, v.s});
        }
        if (v.s < m && !checked[v.f][v.s+1] && grid[v.f][v.s+1] != grid[v.f][v.s] && grid[v.f][v.s+1] != '*') {
            d[v.f][v.s+1] = d[v.f][v.s]+1;
            q.push_back({v.f, v.s+1});
        }

        //cout << " d[("<<v.f << ", " << v.s << ") = " << d[v.f][v.s] << endl;

        //dfs (q.front().f, q.front().s);

    }

   // dfsTree (1, -1);

    cout << curD+1;

    return 0;
}

Subtask #1
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 5 ms 640 KB Output is correct
4 Correct 6 ms 1024 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 7 ms 1664 KB Output is correct
7 Correct 6 ms 1664 KB Output is correct
8 Correct 6 ms 1536 KB Output is correct
9 Correct 6 ms 1536 KB Output is correct
10 Correct 6 ms 1664 KB Output is correct
11 Correct 6 ms 1536 KB Output is correct
12 Correct 7 ms 1664 KB Output is correct
13 Correct 6 ms 1408 KB Output is correct
14 Correct 6 ms 1664 KB Output is correct
15 Correct 6 ms 1408 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 5 ms 640 KB Output is correct
4 Correct 6 ms 1024 KB Output is correct
5 Correct 5 ms 1536 KB Output is correct
6 Correct 7 ms 1664 KB Output is correct
7 Correct 6 ms 1664 KB Output is correct
8 Correct 6 ms 1536 KB Output is correct
9 Correct 6 ms 1536 KB Output is correct
10 Correct 6 ms 1664 KB Output is correct
11 Correct 6 ms 1536 KB Output is correct
12 Correct 7 ms 1664 KB Output is correct
13 Correct 6 ms 1408 KB Output is correct
14 Correct 6 ms 1664 KB Output is correct
15 Correct 6 ms 1408 KB Output is correct
16 Correct 29 ms 14072 KB Output is correct
17 Correct 29 ms 13952 KB Output is correct
18 Correct 28 ms 14080 KB Output is correct
19 Correct 30 ms 14200 KB Output is correct
20 Correct 28 ms 13824 KB Output is correct
21 Correct 69 ms 16332 KB Output is correct
22 Correct 69 ms 16376 KB Output is correct
23 Correct 70 ms 16632 KB Output is correct
24 Correct 72 ms 17144 KB Output is correct
25 Correct 71 ms 17016 KB Output is correct
26 Correct 68 ms 16632 KB Output is correct
27 Correct 66 ms 16508 KB Output is correct
28 Correct 69 ms 16376 KB Output is correct
29 Correct 68 ms 17144 KB Output is correct
30 Correct 71 ms 16760 KB Output is correct