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Submission #971597

# Submission time Handle Problem Language Result Execution time Memory
971597 2024-04-29T04:12:35 Z Cookie Sirtet (CCO19_day1problem2) C++14
25 / 25
 154 ms 132180 KB 
#include<bits/stdc++.h>
#include<fstream>
using namespace std;
#define sz(a) (int)a.size()
#define ALL(v) v.begin(), v.end()
#define ALLR(v) v.rbegin(), v.rend()
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
#define mpp make_pair
const ld PI = 3.14159265359, prec = 1e-9;;
using u128 = __uint128_t;
const int x[4] = {1, 0, -1, 0};
const int y[4] = {0, -1, 0, 1};
const ll mod =1e9 + 7;
const int mxn = 1e6 + 5, mxq = 1e5 + 5, sq = 300, mxm = 1e6 + 5;
//const int base = (1 <<18);
const ll inf = 1e9 + 5, neg = -69420, inf2 = 1e14;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
// have fun!
// <3;
int n, m;
vt<vt<char>>v;
vt<vt<int>>comp;
int idcomp = 0;
int in[mxn + 1], dp[mxn + 1];
vt<pii>adj[mxn + 1];
bool inside(int cx, int cy){
    return(cx >= 0 && cy >= 0 && cx < n && cy < m);
}
void dfs(int cx, int cy){
    comp[cx][cy] = idcomp;
    for(int i = 0; i < 4; i++){
        int px = cx + x[i], py = cy + y[i];
        if(inside(px, py) && !comp[px][py] && v[px][py] == '#')dfs(px, py);
    }
}
void solve(){
    cin >> n >> m;
    v.resize(n, vt<char>(m));
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            cin >> v[i][j];
        }
    }
    comp.resize(n + 1, vt<int>(m, 0));
    
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            if(comp[i][j] == 0 && v[i][j] == '#'){
                idcomp++;
                dfs(i, j);
            }
        }
    }
    
    for(int i = 0; i < m; i++){
        int last = n;
        for(int j = n - 1; j >= 0; j--){
            if(v[j][i] == '#'){
                if(comp[last][i] != comp[j][i]){
                    adj[comp[last][i]].pb(mpp(comp[j][i], last - j - 1)); in[comp[j][i]]++;
                }
                last = j;
            }
        }
    }
    
    priority_queue<pii, vt<pii>, greater<pii>>pq;
    for(int i = 1; i <= idcomp; i++)dp[i] = inf;
    pq.push(mpp(dp[0], 0));
    while(!pq.empty()){
        auto [dd, u] = pq.top(); pq.pop();
        if(dp[u] != dd)continue;
        for(auto [v, w]: adj[u]){
            if(dp[v] > dp[u] + w){
                dp[v] = dp[u] + w;
                pq.push(mpp(dp[v], v));
            }
        }
    }
    vt<vt<char>>res(n, vt<char>(m));
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            res[i][j] = '.';
        }
    } 
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            if(v[i][j] == '#'){
                int offset = dp[comp[i][j]];
                res[i + offset][j] = '#';
            }
        }
    }
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            cout << res[i][j];
        }
        cout << "\n";
    } 
    
}


signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    //freopen("SODOCLA.INP", "r", stdin);
    //freopen("SODOCLA.INP", "w", stdout);
    int tt; tt = 1;
    while(tt--){
        solve();

    }
    return(0);
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:81:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   81 |         auto [dd, u] = pq.top(); pq.pop();
      |              ^
Main.cpp:83:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   83 |         for(auto [v, w]: adj[u]){
      |                  ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 27228 KB Output is correct
2 Correct 6 ms 27240 KB Output is correct
3 Correct 6 ms 27228 KB Output is correct
4 Correct 6 ms 27228 KB Output is correct
5 Correct 6 ms 27308 KB Output is correct
6 Correct 6 ms 27228 KB Output is correct
7 Correct 6 ms 27228 KB Output is correct
8 Correct 6 ms 27228 KB Output is correct
9 Correct 6 ms 27228 KB Output is correct
10 Correct 6 ms 27224 KB Output is correct
11 Correct 7 ms 27228 KB Output is correct
12 Correct 6 ms 27308 KB Output is correct
13 Correct 6 ms 27228 KB Output is correct
14 Correct 6 ms 27228 KB Output is correct
15 Correct 7 ms 27228 KB Output is correct
16 Correct 6 ms 27228 KB Output is correct
17 Correct 6 ms 27228 KB Output is correct
18 Correct 6 ms 27304 KB Output is correct
19 Correct 10 ms 27228 KB Output is correct
20 Correct 6 ms 27228 KB Output is correct
21 Correct 7 ms 27228 KB Output is correct
22 Correct 6 ms 27228 KB Output is correct
23 Correct 6 ms 27228 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 115540 KB Output is correct
2 Correct 141 ms 121680 KB Output is correct
3 Correct 128 ms 112724 KB Output is correct
4 Correct 135 ms 114000 KB Output is correct
5 Correct 154 ms 132180 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 27228 KB Output is correct
2 Correct 6 ms 27240 KB Output is correct
3 Correct 6 ms 27228 KB Output is correct
4 Correct 6 ms 27228 KB Output is correct
5 Correct 6 ms 27308 KB Output is correct
6 Correct 6 ms 27228 KB Output is correct
7 Correct 6 ms 27228 KB Output is correct
8 Correct 6 ms 27228 KB Output is correct
9 Correct 6 ms 27228 KB Output is correct
10 Correct 6 ms 27224 KB Output is correct
11 Correct 7 ms 27228 KB Output is correct
12 Correct 6 ms 27308 KB Output is correct
13 Correct 6 ms 27228 KB Output is correct
14 Correct 6 ms 27228 KB Output is correct
15 Correct 7 ms 27228 KB Output is correct
16 Correct 6 ms 27228 KB Output is correct
17 Correct 6 ms 27228 KB Output is correct
18 Correct 6 ms 27304 KB Output is correct
19 Correct 10 ms 27228 KB Output is correct
20 Correct 6 ms 27228 KB Output is correct
21 Correct 7 ms 27228 KB Output is correct
22 Correct 6 ms 27228 KB Output is correct
23 Correct 6 ms 27228 KB Output is correct
24 Correct 134 ms 115540 KB Output is correct
25 Correct 141 ms 121680 KB Output is correct
26 Correct 128 ms 112724 KB Output is correct
27 Correct 135 ms 114000 KB Output is correct
28 Correct 154 ms 132180 KB Output is correct
29 Correct 48 ms 42324 KB Output is correct
30 Correct 50 ms 42324 KB Output is correct
31 Correct 47 ms 46164 KB Output is correct
32 Correct 32 ms 34908 KB Output is correct
33 Correct 51 ms 44116 KB Output is correct
34 Correct 55 ms 42320 KB Output is correct
35 Correct 52 ms 41300 KB Output is correct
36 Correct 46 ms 38996 KB Output is correct
37 Correct 47 ms 37712 KB Output is correct
38 Correct 51 ms 41300 KB Output is correct
39 Correct 40 ms 35308 KB Output is correct
40 Correct 47 ms 35668 KB Output is correct
41 Correct 50 ms 39060 KB Output is correct
42 Correct 57 ms 47748 KB Output is correct
43 Correct 45 ms 35392 KB Output is correct
44 Correct 46 ms 35688 KB Output is correct
45 Correct 38 ms 35156 KB Output is correct
46 Correct 58 ms 37200 KB Output is correct
47 Correct 45 ms 38996 KB Output is correct
48 Correct 48 ms 36944 KB Output is correct
49 Correct 50 ms 35540 KB Output is correct
50 Correct 63 ms 57168 KB Output is correct
51 Correct 70 ms 47956 KB Output is correct
52 Correct 91 ms 48700 KB Output is correct
53 Correct 68 ms 48980 KB Output is correct
54 Correct 95 ms 53632 KB Output is correct
55 Correct 104 ms 42580 KB Output is correct
56 Correct 94 ms 42424 KB Output is correct
57 Correct 51 ms 36432 KB Output is correct
58 Correct 57 ms 36248 KB Output is correct
59 Correct 93 ms 41516 KB Output is correct
60 Correct 57 ms 35340 KB Output is correct
61 Correct 41 ms 35788 KB Output is correct
62 Correct 51 ms 36172 KB Output is correct
63 Correct 112 ms 66444 KB Output is correct
64 Correct 109 ms 54288 KB Output is correct
65 Correct 105 ms 60492 KB Output is correct
66 Correct 121 ms 54868 KB Output is correct
67 Correct 71 ms 62628 KB Output is correct
68 Correct 52 ms 45688 KB Output is correct
69 Correct 73 ms 67536 KB Output is correct
70 Correct 46 ms 41252 KB Output is correct