oj.uz

Submission #786929

# Submission time Handle Problem Language Result Execution time Memory
786929 2023-07-18T14:54:54 Z MCi Tracks in the Snow (BOI13_tracks) C++14
1.66667 / 100
 698 ms 389120 KB 
#include<bits/stdc++.h>
#define file "D:\\CWistor\\code"
using namespace std; 

#define ll long long
#define MAX 100100
#define fi first
#define se second
#define ull unsigned long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vl vector<long long>
#define mem(a, b) memset((a), (b), sizeof((a)))
#define all(c) (c).begin(), (c).end()
const int MOD = 1e9 + 7;
const int N = 2e6 + 6;
const ll M = (ll)1e18 + 7LL;
const int INF = 1e9 + 7;
ll oo = 1e17 + 5;
int n, m, a[5005][5005];
int dx[] = {1, -1, 0, 0};
int dy[] = {0, 0, 1, -1};
int cnt = 0;
void run_with_file()
{
    if (fopen(file".inp", "r"))
    {
        freopen(file".inp", "r", stdin);
        freopen(file".out", "w", stdout);
    }
}
void inp(){
    cin >> n >> m;
    for(int i = 1; i <= n; ++i){
        for(int j = 1; j <= m; ++j){
            char x;
            cin >> x;
            if(x == '.') a[i][j] = 1;
            else a[i][j] = 0;
        }
    }
}
void dfs(int i, int j){
    a[i][j] = 0;
    for(int k = 0; k < 4; ++k){
        int i1 = i + dx[k];
        int j1 = j + dy[k];
        if(i1 >= 1 && i1 <= n && j1 >= 1 && j1 <= m && a[i1][j1] == 1){
            a[i1][j1] = 0;
            dfs(i1, j1);
        }
    }
}
int main()
{
    cin.tie(0)->sync_with_stdio(0);
    run_with_file(); 
    inp();
    for(int i = 1; i <= n; ++i){
        for(int j = 1; j <= m; ++j){
            if(a[i][j] == 1){
                cnt++;
                dfs(i, j);
            }
        }
    }
    cout << cnt;
}

Compilation message

tracks.cpp: In function 'void run_with_file()':
tracks.cpp:29:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         freopen(file".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
tracks.cpp:30:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         freopen(file".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.66666666667 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 3412 KB Output isn't correct
2 Incorrect 1 ms 340 KB Output isn't correct
3 Incorrect 1 ms 456 KB Output isn't correct
4 Incorrect 3 ms 3012 KB Output isn't correct
5 Incorrect 3 ms 2388 KB Output isn't correct
6 Incorrect 0 ms 324 KB Output isn't correct
7 Incorrect 1 ms 468 KB Output isn't correct
8 Incorrect 1 ms 468 KB Output isn't correct
9 Correct 1 ms 848 KB Output is correct
10 Incorrect 2 ms 1748 KB Output isn't correct
11 Incorrect 1 ms 1236 KB Output isn't correct
12 Incorrect 2 ms 1876 KB Output isn't correct
13 Incorrect 3 ms 2388 KB Output isn't correct
14 Incorrect 3 ms 2388 KB Output isn't correct
15 Incorrect 5 ms 3540 KB Output isn't correct
16 Incorrect 4 ms 3412 KB Output isn't correct
17 Incorrect 6 ms 3928 KB Output isn't correct
18 Incorrect 3 ms 3008 KB Output isn't correct

Subtask #2
0 / 70.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 16212 KB Output isn't correct
2 Incorrect 28 ms 13800 KB Output isn't correct
3 Incorrect 320 ms 105572 KB Output isn't correct
4 Incorrect 90 ms 37060 KB Output isn't correct
5 Incorrect 139 ms 57036 KB Output isn't correct
6 Incorrect 186 ms 94260 KB Output isn't correct
7 Incorrect 7 ms 16852 KB Output isn't correct
8 Incorrect 9 ms 16216 KB Output isn't correct
9 Incorrect 2 ms 980 KB Output isn't correct
10 Incorrect 2 ms 1876 KB Output isn't correct
11 Incorrect 7 ms 16988 KB Output isn't correct
12 Incorrect 1 ms 980 KB Output isn't correct
13 Incorrect 28 ms 13896 KB Output isn't correct
14 Incorrect 17 ms 9152 KB Output isn't correct
15 Incorrect 29 ms 27076 KB Output isn't correct
16 Incorrect 11 ms 5744 KB Output isn't correct
17 Incorrect 71 ms 30176 KB Output isn't correct
18 Incorrect 149 ms 89320 KB Output isn't correct
19 Incorrect 90 ms 37144 KB Output isn't correct
20 Incorrect 71 ms 28736 KB Output isn't correct
21 Incorrect 186 ms 65780 KB Output isn't correct
22 Incorrect 146 ms 57112 KB Output isn't correct
23 Incorrect 132 ms 50800 KB Output isn't correct
24 Incorrect 163 ms 58332 KB Output isn't correct
25 Incorrect 698 ms 389120 KB Output isn't correct
26 Incorrect 162 ms 74172 KB Output isn't correct
27 Incorrect 183 ms 94308 KB Output isn't correct
28 Incorrect 195 ms 94260 KB Output isn't correct
29 Incorrect 177 ms 94240 KB Output isn't correct
30 Incorrect 177 ms 92328 KB Output isn't correct
31 Incorrect 117 ms 63244 KB Output isn't correct
32 Incorrect 213 ms 102732 KB Output isn't correct