oj.uz

Submission #1105523

# Submission time Handle Problem Language Result Execution time Memory
1105523 2024-10-26T16:21:47 Z clams1606 Maze (JOI23_ho_t3) C++14
35 / 100
 96 ms 41936 KB 
#include <bits/stdc++.h>

#define _files
#define _multitest
#define _Debug_

using namespace std;

void just_do_it();

int main() {
    #define task ""
    #ifdef _files_
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    #endif
    #ifdef _Debug
        ios_base::sync_with_stdio(0);
    #endif
    cin.tie(0);
    just_do_it();
    return 0;
}

#define __builtin_popcount __builtin_popcountll
#define BIT(x, i) (((x)>> (i))& (1LL))
#define MASK(x) (1LL<< (x))
#define MOD 1000000007
#define ll long long

const int maxm= (int)1e6, maxn= (int)1e5, maxb= (int)1e3;

ll INF= (ll)1e18;

const int dx[]= {-1, 1,  0, 0};
const int dy[]= { 0, 0, -1, 1};

struct DSU{
    DSU(){}
    vector<int> f;
    DSU(int n){
        f.resize(n+ 1);
        iota(f.begin(), f.end(), 0);
    }
    int lab(int u){
        while(u!= f[u]){
            u= f[u]= f[f[u]];
        }
        return u;
    }
    void mer(int u, int v){
        u= lab(u);
        v= lab(v);
        if(u!= v){
            f[v]= u;
        }
    }
};

struct state{
    state(){}
    int t, x, y, ken;
    state(int _t, int _x, int _y){
        t= _t;
        x= _x;
        y= _y;
    }
};



vector<vector<char> > a;
vector<vector<bool> > vis, wvis;
vector<DSU> nxtr, nxtc;
pair<int, int> sta, en;
int r, c, n;
deque<state> st;

bool ok(int pr, int pc){
        return ((0< pr)&& (pr<= r)&& (0< pc)&& (pc<= c)&& (a[pr][pc]== '.'));
}

void input(){
    cin>> r>> c>> n>> sta.first>> sta.second>> en.first>> en.second;
    a.resize(r+ 3, vector<char> (c+ 3));
    vis.resize(r+ 3, vector<bool> (c+ 3));
    wvis.resize(r+ 3, vector<bool> (c+ 3));
    nxtr.resize(c+ 3, DSU(r+ 3));
    nxtc.resize(r+ 2, DSU(c+ 3));
    for(int i= 1; i<= r; i++){
        for(int j= 1; j<= c; j++){
            cin>> a[i][j];
        }
    }
}

void prepare(){

}

void solve(){
    vis[sta.first][sta.second]== true;
    st.push_back(state(0, sta.first, sta.second));
    while(st.size()){
        int t= st.front().t, pr= st.front().x, pc= st.front().y;st.pop_front();
        if((pr== en.first)&& (pc== en.second)){
            cout<< t;
            return;
        }
        if(wvis[pr][pc]== true){
            vis[pr][pc]= true;
            continue;
        }
        for(int k= 0; k< 4; k++){
            int nr= pr+ dx[k], nc= pc+ dy[k];
            if(ok(nr, nc)&& (vis[nr][nc]== false)){
                vis[nr][nc]= true;
                st.push_front(state(t, nr, nc));
            }
        }
        int mnr= max(pr- n+ 1, 1), mxr= min(pr+ n- 1, r), mnc= max(pc- n, 1), mxc= min(pc+ n, c);
        for(int i= nxtr[mnc].lab(mnr); i<= mxr; i= nxtr[mnc].lab(i+ 1)){
            for(int j= nxtc[i].lab(mnc); j<= mxc; j= nxtc[i].lab(j+ 1)){
                if(vis[i][j]== false)  st.push_back(state(t+ 1, i, j));
                nxtc[i].mer(j+ 1, j);
            }
            nxtr[mnc].mer(i+ 1, i);
        }
        mnr--;
        mxr++;
        mnc++;
        mxc--;
        if(mnr> 0){
            for(int j= nxtc[mnr].lab(mnc); j<= mxc; j= nxtc[mnr].lab(j+ 1)){
                if(vis[mnr][j]== false) st.push_back(state(t+ 1, mnr, j));
                nxtc[mnr].mer(j+ 1, j);
            }
        }
        if(mxr<= r){
            for(int j= nxtc[mxr].lab(mnc); j<= mxc; j= nxtc[mxr].lab(j+ 1)){
                if(vis[mxr][j]== false) st.push_back(state(t+ 1, mxr, j));
                nxtc[mxr].mer(j+ 1, j);
            }
        }
    }
}

void printans(){

}

void reset(){

}

void test(){
    input();
    prepare();
    solve();
    printans();
    reset();
}

void just_do_it() {
    int nTest= 1;
    #ifdef _multitest_
        cin>>nTest;
    #endif
    for (int it= 1; it <= nTest; it++) {
        test();
    }
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:102:31: warning: value computed is not used [-Wunused-value]
  102 |     vis[sta.first][sta.second]== true;
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 464 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 504 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 4 ms 848 KB Output is correct
20 Correct 7 ms 3920 KB Output is correct
21 Correct 7 ms 1360 KB Output is correct
22 Correct 6 ms 848 KB Output is correct
23 Correct 5 ms 848 KB Output is correct
24 Correct 7 ms 4944 KB Output is correct
25 Correct 7 ms 5108 KB Output is correct
26 Correct 2 ms 848 KB Output is correct
27 Correct 2 ms 848 KB Output is correct
28 Incorrect 3 ms 848 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 508 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 504 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 504 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 3 ms 848 KB Output is correct
26 Correct 6 ms 1872 KB Output is correct
27 Correct 4 ms 1360 KB Output is correct
28 Correct 4 ms 2128 KB Output is correct
29 Correct 5 ms 1872 KB Output is correct
30 Correct 4 ms 1872 KB Output is correct
31 Correct 5 ms 1272 KB Output is correct
32 Correct 3 ms 848 KB Output is correct
33 Correct 3 ms 848 KB Output is correct
34 Correct 6 ms 2384 KB Output is correct
35 Correct 7 ms 2416 KB Output is correct
36 Correct 9 ms 4688 KB Output is correct
37 Correct 19 ms 4372 KB Output is correct
38 Correct 9 ms 4176 KB Output is correct
39 Correct 46 ms 12424 KB Output is correct
40 Correct 96 ms 33480 KB Output is correct
41 Correct 87 ms 20004 KB Output is correct
42 Correct 90 ms 41936 KB Output is correct
43 Correct 91 ms 38872 KB Output is correct
44 Correct 83 ms 38908 KB Output is correct
45 Correct 90 ms 36104 KB Output is correct
46 Correct 85 ms 34736 KB Output is correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 508 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 504 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 5 ms 1016 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 592 KB Output is correct
36 Correct 3 ms 848 KB Output is correct
37 Correct 7 ms 3920 KB Output is correct
38 Correct 6 ms 2004 KB Output is correct
39 Correct 4 ms 1360 KB Output is correct
40 Correct 5 ms 848 KB Output is correct
41 Correct 4 ms 848 KB Output is correct
42 Correct 4 ms 2128 KB Output is correct
43 Correct 5 ms 1872 KB Output is correct
44 Correct 4 ms 1872 KB Output is correct
45 Correct 9 ms 4944 KB Output is correct
46 Correct 8 ms 4944 KB Output is correct
47 Correct 7 ms 2640 KB Output is correct
48 Correct 6 ms 1104 KB Output is correct
49 Correct 5 ms 1104 KB Output is correct
50 Correct 6 ms 1104 KB Output is correct
51 Correct 5 ms 1104 KB Output is correct
52 Correct 4 ms 848 KB Output is correct
53 Correct 3 ms 848 KB Output is correct
54 Incorrect 4 ms 848 KB Output isn't correct
55 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 508 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 504 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 5 ms 1016 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 592 KB Output is correct
36 Correct 3 ms 848 KB Output is correct
37 Correct 7 ms 3920 KB Output is correct
38 Correct 6 ms 2004 KB Output is correct
39 Correct 4 ms 1360 KB Output is correct
40 Correct 5 ms 848 KB Output is correct
41 Correct 4 ms 848 KB Output is correct
42 Correct 4 ms 2128 KB Output is correct
43 Correct 5 ms 1872 KB Output is correct
44 Correct 4 ms 1872 KB Output is correct
45 Correct 9 ms 4944 KB Output is correct
46 Correct 8 ms 4944 KB Output is correct
47 Correct 7 ms 2640 KB Output is correct
48 Correct 6 ms 1104 KB Output is correct
49 Correct 5 ms 1104 KB Output is correct
50 Correct 6 ms 1104 KB Output is correct
51 Correct 5 ms 1104 KB Output is correct
52 Correct 4 ms 848 KB Output is correct
53 Correct 3 ms 848 KB Output is correct
54 Incorrect 4 ms 848 KB Output isn't correct
55 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 464 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 504 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 4 ms 848 KB Output is correct
20 Correct 7 ms 3920 KB Output is correct
21 Correct 7 ms 1360 KB Output is correct
22 Correct 6 ms 848 KB Output is correct
23 Correct 5 ms 848 KB Output is correct
24 Correct 7 ms 4944 KB Output is correct
25 Correct 7 ms 5108 KB Output is correct
26 Correct 2 ms 848 KB Output is correct
27 Correct 2 ms 848 KB Output is correct
28 Incorrect 3 ms 848 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 464 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 504 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 4 ms 848 KB Output is correct
20 Correct 7 ms 3920 KB Output is correct
21 Correct 7 ms 1360 KB Output is correct
22 Correct 6 ms 848 KB Output is correct
23 Correct 5 ms 848 KB Output is correct
24 Correct 7 ms 4944 KB Output is correct
25 Correct 7 ms 5108 KB Output is correct
26 Correct 2 ms 848 KB Output is correct
27 Correct 2 ms 848 KB Output is correct
28 Incorrect 3 ms 848 KB Output isn't correct
29 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 464 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 504 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 4 ms 848 KB Output is correct
20 Correct 7 ms 3920 KB Output is correct
21 Correct 7 ms 1360 KB Output is correct
22 Correct 6 ms 848 KB Output is correct
23 Correct 5 ms 848 KB Output is correct
24 Correct 7 ms 4944 KB Output is correct
25 Correct 7 ms 5108 KB Output is correct
26 Correct 2 ms 848 KB Output is correct
27 Correct 2 ms 848 KB Output is correct
28 Incorrect 3 ms 848 KB Output isn't correct
29 Halted 0 ms 0 KB -