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Submission #769773

# Submission time Handle Problem Language Result Execution time Memory
769773 2023-06-30T08:41:05 Z Ellinor Tracks in the Snow (BOI13_tracks) C++14
0 / 100
 916 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;
    
#define rep(i,a,b) for(int i = (a); i < (b); i++)
typedef long long ll;
    
int H, W;
vector<string> grid;
    
vector<vector<ll>> visited; // bitset ?
    
//priority_queue<vector<ll>> q;
vector<vector<pair<ll, ll>>> pq_vec;
    
void dfs(int hat, int wat, ll num)
{
    if (visited[hat][wat]>0) return;
    if (grid[hat][wat] == '.') return;
    visited[hat][wat] = num;
    
    char ch = grid[hat][wat];
    if (hat + 1 < H) {
        if (grid[hat + 1][wat] == ch) pq_vec[num].push_back({hat + 1, wat});
        else pq_vec[num + 1].push_back({hat + 1, wat});
    }
    if (wat + 1 < W) {
        if (grid[hat][wat + 1] == ch) pq_vec[num].push_back({hat, wat + 1});
        else pq_vec[num + 1].push_back({hat, wat + 1});
    }
    if (hat - 1 >= 0) {
        if (grid[hat - 1][wat] == ch) pq_vec[num].push_back({hat - 1, wat});
        else pq_vec[num + 1].push_back({hat - 1, wat});
    }
    if (wat - 1 >= 0) {
        if (grid[hat][wat - 1] == ch) pq_vec[num].push_back({hat, wat - 1});
        else pq_vec[num + 1].push_back({hat, wat - 1});
    }
}
    
int32_t main()
{
    cin>>H>>W;
    grid.assign(H, "");
    rep(i,0,H){
        cin>>grid[i];
    }
    
    visited.assign(H, vector<ll>(W, -1));
    //q.push({-1,0,0});
    pq_vec.assign(H*W + 1, {});
    pq_vec[1].push_back({0,0});

    assert(1 == 0);

    ll i = 1;
    while(i < pq_vec.size())
    {
        ll j = 0;
        while (j < pq_vec[i].size())
        {
            pair<ll,ll> x = pq_vec[i][j];
            dfs(x.first, x.second, i);
            j++;
        }
        i++;
    }
    
    ll ans = 1;
    rep(i,0,H){
        rep(j,0,W){
            ans = max(ans, visited[i][j]);
        }
    }
    cout << ans;
}

Compilation message

tracks.cpp: In function 'int32_t main()':
tracks.cpp:56:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     while(i < pq_vec.size())
      |           ~~^~~~~~~~~~~~~~~
tracks.cpp:59:18: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         while (j < pq_vec[i].size())
      |                ~~^~~~~~~~~~~~~~~~~~

Subtask #1
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 18 ms 16724 KB Execution killed with signal 6
2 Runtime error 1 ms 428 KB Execution killed with signal 6
3 Runtime error 1 ms 552 KB Execution killed with signal 6
4 Runtime error 9 ms 10872 KB Execution killed with signal 6
5 Runtime error 5 ms 6072 KB Execution killed with signal 6
6 Runtime error 1 ms 468 KB Execution killed with signal 6
7 Runtime error 1 ms 596 KB Execution killed with signal 6
8 Runtime error 1 ms 680 KB Execution killed with signal 6
9 Runtime error 2 ms 1108 KB Execution killed with signal 6
10 Runtime error 5 ms 4884 KB Execution killed with signal 6
11 Runtime error 3 ms 3124 KB Execution killed with signal 6
12 Runtime error 6 ms 6300 KB Execution killed with signal 6
13 Runtime error 5 ms 6100 KB Execution killed with signal 6
14 Runtime error 7 ms 6172 KB Execution killed with signal 6
15 Runtime error 19 ms 17464 KB Execution killed with signal 6
16 Runtime error 14 ms 16852 KB Execution killed with signal 6
17 Runtime error 17 ms 16624 KB Execution killed with signal 6
18 Runtime error 9 ms 10836 KB Execution killed with signal 6

Subtask #2
0 / 70.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 4052 KB Execution killed with signal 6
2 Runtime error 92 ms 104816 KB Execution killed with signal 6
3 Runtime error 916 ms 1048576 KB Execution killed with signal 6
4 Runtime error 211 ms 253036 KB Execution killed with signal 6
5 Runtime error 483 ms 595236 KB Execution killed with signal 6
6 Runtime error 875 ms 1048576 KB Execution killed with signal 6
7 Runtime error 3 ms 3668 KB Execution killed with signal 6
8 Runtime error 4 ms 4052 KB Execution killed with signal 6
9 Runtime error 6 ms 4436 KB Execution killed with signal 6
10 Runtime error 4 ms 2644 KB Execution killed with signal 6
11 Runtime error 6 ms 3928 KB Execution killed with signal 6
12 Runtime error 2 ms 1952 KB Execution killed with signal 6
13 Runtime error 125 ms 104536 KB Execution killed with signal 6
14 Runtime error 59 ms 61244 KB Execution killed with signal 6
15 Runtime error 65 ms 67720 KB Execution killed with signal 6
16 Runtime error 39 ms 42700 KB Execution killed with signal 6
17 Runtime error 236 ms 273404 KB Execution killed with signal 6
18 Runtime error 230 ms 269932 KB Execution killed with signal 6
19 Runtime error 217 ms 253068 KB Execution killed with signal 6
20 Runtime error 205 ms 232512 KB Execution killed with signal 6
21 Runtime error 478 ms 615776 KB Execution killed with signal 6
22 Runtime error 496 ms 595420 KB Execution killed with signal 6
23 Runtime error 425 ms 511624 KB Execution killed with signal 6
24 Runtime error 500 ms 602164 KB Execution killed with signal 6
25 Runtime error 807 ms 1048576 KB Execution killed with signal 6
26 Runtime error 644 ms 810452 KB Execution killed with signal 6
27 Runtime error 859 ms 1048576 KB Execution killed with signal 6
28 Runtime error 853 ms 1048576 KB Execution killed with signal 6
29 Runtime error 814 ms 1048576 KB Execution killed with signal 6
30 Runtime error 861 ms 1048576 KB Execution killed with signal 6
31 Runtime error 575 ms 676492 KB Execution killed with signal 6
32 Runtime error 835 ms 1048576 KB Execution killed with signal 6