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Submission #1085762

# Submission time Handle Problem Language Result Execution time Memory
1085762 2024-09-08T16:12:08 Z alexander707070 Game (APIO22_game) C++17
60 / 100
 4000 ms 47028 KB 
#include<bits/stdc++.h>

#define MAXN 300007
using namespace std;

int bucket_sz;

int n,k,bucket[MAXN];
int from[MAXN],to[MAXN];
int mins[MAXN],maxs[MAXN];

int li[MAXN],tim,cnt[MAXN];

vector<int> v[MAXN],r[MAXN],news;

void init(int N,int K){
    n=N; k=K;

    bucket_sz=int(sqrt(k))+1;

    for(int i=1;i<=k;i++){
        bucket[i]=i/bucket_sz+1;
    }

    for(int i=1;i<=k;i++){
        mins[i]=maxs[i]=bucket[i];
        from[i]=to[i]=i;
    }

    for(int i=k+1;i<=n;i++){
        from[i]=n+1; to[i]=0;
        mins[i]=800; maxs[i]=0;
    }
}

int dfs(int x,int val,int val2){
    li[x]=tim;

    if(maxs[x]>val)return 0;
    if(maxs[x]==val and (mins[x]!=maxs[x] or to[x]>=val2))return 0;

    if(mins[x]==maxs[x]){
        to[x]=val2;
        if(from[x]<=to[x] or mins[x]<val){
            if(from[x]<to[x] or x>k)return 1;
        }
    }else{
        maxs[x]=val;

        if(mins[x]<maxs[x])return 1;
        if(mins[x]==maxs[x])news.push_back(x);
    }

    for(int i=0;i<v[x].size();i++){
        if(li[v[x][i]]==tim)continue;

        if(dfs(v[x][i],val,val2)==1)return 1;
    }

    return 0;
}

int dfs2(int x,int val,int val2){
    li[x]=tim;

    if(mins[x]<val)return 0;
    if(mins[x]==val and (mins[x]!=maxs[x] or from[x]<=val2))return 0;

    if(mins[x]==maxs[x]){
        from[x]=val2;
        if(from[x]<=to[x] or val<maxs[x]){
            if(from[x]<to[x] or x>k)return 1;
        }
    }else{
        mins[x]=val;
        if(mins[x]<maxs[x])return 1;

        if(mins[x]==maxs[x])news.push_back(x);
    }

    for(int i=0;i<r[x].size();i++){
        if(li[r[x][i]]==tim)continue;

        if(dfs2(r[x][i],val,val2)==1)return 1;
    }

    return 0;
}

void dfs3(int x){
    li[x]=tim;

    if(from[x]!=n+1)return;

    for(int i=0;i<v[x].size();i++){
        if(li[v[x][i]]==tim)continue;

        dfs3(v[x][i]);
        from[x]=min(from[x],from[v[x][i]]);
    }
}

int dfs4(int x){
    li[x]=tim;

    if(to[x]!=0)return 0;

    int z=0;
    for(int i=0;i<r[x].size();i++){
        if(li[r[x][i]]==tim)continue;

        z=dfs4(r[x][i]);
        to[x]=max(to[x],to[r[x][i]]);
        if(z==1)return 1;
    }

    if(from[x]<=to[x])return 1;
    return 0;
}

int add_teleporter(int a, int b){
    a++; b++;

    if(a==b){
        if(a<=k)return 1;
        return 0;
    }

    news.clear();

    v[a].push_back(b); tim++;
    int z=dfs(b,maxs[a],to[a]);

    if(z==1)return 1;

    r[b].push_back(a); tim++;
    z=dfs2(a,mins[b],from[b]);

    if(z==1)return 1;

    tim++;
    for(int i:news){
        if(li[i]!=tim)dfs3(i);   
    }

    tim++;
    for(int i:news){
        if(li[i]!=tim){
            if(dfs4(i)==1)return 1;
        }   
    }

    return 0;
}

/*int main(){

    init(6, 3);

    cout<<add_teleporter(3, 4);
    cout<<add_teleporter(5, 0);
    cout<<add_teleporter(4, 5);
    cout<<add_teleporter(5, 3);
    cout<<add_teleporter(1, 4);

    return 0;
}*/

Compilation message

game.cpp: In function 'int dfs(int, int, int)':
game.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i=0;i<v[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'int dfs2(int, int, int)':
game.cpp:81:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |     for(int i=0;i<r[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'void dfs3(int)':
game.cpp:95:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |     for(int i=0;i<v[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'int dfs4(int)':
game.cpp:109:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |     for(int i=0;i<r[x].size();i++){
      |                 ~^~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 6 ms 14424 KB Output is correct
4 Correct 7 ms 14532 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 6 ms 14548 KB Output is correct
7 Correct 6 ms 14424 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 6 ms 14424 KB Output is correct
4 Correct 7 ms 14532 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 6 ms 14548 KB Output is correct
7 Correct 6 ms 14424 KB Output is correct
8 Correct 6 ms 14424 KB Output is correct
9 Correct 6 ms 14424 KB Output is correct
10 Correct 7 ms 14424 KB Output is correct
11 Correct 6 ms 14424 KB Output is correct
12 Correct 6 ms 14508 KB Output is correct
13 Correct 7 ms 14424 KB Output is correct
14 Correct 5 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14424 KB Output is correct
17 Correct 6 ms 14468 KB Output is correct
18 Correct 6 ms 14364 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 6 ms 14424 KB Output is correct
4 Correct 7 ms 14532 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 6 ms 14548 KB Output is correct
7 Correct 6 ms 14424 KB Output is correct
8 Correct 6 ms 14424 KB Output is correct
9 Correct 6 ms 14424 KB Output is correct
10 Correct 7 ms 14424 KB Output is correct
11 Correct 6 ms 14424 KB Output is correct
12 Correct 6 ms 14508 KB Output is correct
13 Correct 7 ms 14424 KB Output is correct
14 Correct 5 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14424 KB Output is correct
17 Correct 6 ms 14468 KB Output is correct
18 Correct 6 ms 14364 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct
20 Correct 6 ms 14424 KB Output is correct
21 Correct 6 ms 14424 KB Output is correct
22 Correct 6 ms 14632 KB Output is correct
23 Correct 6 ms 14648 KB Output is correct
24 Correct 7 ms 14424 KB Output is correct
25 Correct 8 ms 14680 KB Output is correct
26 Correct 8 ms 14680 KB Output is correct
27 Correct 8 ms 14424 KB Output is correct
28 Correct 7 ms 14424 KB Output is correct
29 Correct 7 ms 14424 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 6 ms 14424 KB Output is correct
4 Correct 7 ms 14532 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 6 ms 14548 KB Output is correct
7 Correct 6 ms 14424 KB Output is correct
8 Correct 6 ms 14424 KB Output is correct
9 Correct 6 ms 14424 KB Output is correct
10 Correct 7 ms 14424 KB Output is correct
11 Correct 6 ms 14424 KB Output is correct
12 Correct 6 ms 14508 KB Output is correct
13 Correct 7 ms 14424 KB Output is correct
14 Correct 5 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14424 KB Output is correct
17 Correct 6 ms 14468 KB Output is correct
18 Correct 6 ms 14364 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct
20 Correct 6 ms 14424 KB Output is correct
21 Correct 6 ms 14424 KB Output is correct
22 Correct 6 ms 14632 KB Output is correct
23 Correct 6 ms 14648 KB Output is correct
24 Correct 7 ms 14424 KB Output is correct
25 Correct 8 ms 14680 KB Output is correct
26 Correct 8 ms 14680 KB Output is correct
27 Correct 8 ms 14424 KB Output is correct
28 Correct 7 ms 14424 KB Output is correct
29 Correct 7 ms 14424 KB Output is correct
30 Correct 20 ms 16256 KB Output is correct
31 Correct 10 ms 15448 KB Output is correct
32 Correct 27 ms 17320 KB Output is correct
33 Correct 25 ms 16984 KB Output is correct
34 Correct 80 ms 19024 KB Output is correct
35 Correct 56 ms 18340 KB Output is correct
36 Correct 60 ms 17236 KB Output is correct
37 Correct 32 ms 16976 KB Output is correct
38 Correct 26 ms 16728 KB Output is correct
39 Correct 26 ms 16720 KB Output is correct
40 Correct 86 ms 19072 KB Output is correct
41 Correct 41 ms 17720 KB Output is correct
42 Correct 34 ms 17236 KB Output is correct
43 Correct 39 ms 18932 KB Output is correct
44 Correct 80 ms 18776 KB Output is correct

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 6 ms 14424 KB Output is correct
4 Correct 7 ms 14532 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 6 ms 14548 KB Output is correct
7 Correct 6 ms 14424 KB Output is correct
8 Correct 6 ms 14424 KB Output is correct
9 Correct 6 ms 14424 KB Output is correct
10 Correct 7 ms 14424 KB Output is correct
11 Correct 6 ms 14424 KB Output is correct
12 Correct 6 ms 14508 KB Output is correct
13 Correct 7 ms 14424 KB Output is correct
14 Correct 5 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14424 KB Output is correct
17 Correct 6 ms 14468 KB Output is correct
18 Correct 6 ms 14364 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct
20 Correct 6 ms 14424 KB Output is correct
21 Correct 6 ms 14424 KB Output is correct
22 Correct 6 ms 14632 KB Output is correct
23 Correct 6 ms 14648 KB Output is correct
24 Correct 7 ms 14424 KB Output is correct
25 Correct 8 ms 14680 KB Output is correct
26 Correct 8 ms 14680 KB Output is correct
27 Correct 8 ms 14424 KB Output is correct
28 Correct 7 ms 14424 KB Output is correct
29 Correct 7 ms 14424 KB Output is correct
30 Correct 20 ms 16256 KB Output is correct
31 Correct 10 ms 15448 KB Output is correct
32 Correct 27 ms 17320 KB Output is correct
33 Correct 25 ms 16984 KB Output is correct
34 Correct 80 ms 19024 KB Output is correct
35 Correct 56 ms 18340 KB Output is correct
36 Correct 60 ms 17236 KB Output is correct
37 Correct 32 ms 16976 KB Output is correct
38 Correct 26 ms 16728 KB Output is correct
39 Correct 26 ms 16720 KB Output is correct
40 Correct 86 ms 19072 KB Output is correct
41 Correct 41 ms 17720 KB Output is correct
42 Correct 34 ms 17236 KB Output is correct
43 Correct 39 ms 18932 KB Output is correct
44 Correct 80 ms 18776 KB Output is correct
45 Correct 175 ms 31988 KB Output is correct
46 Correct 11 ms 20824 KB Output is correct
47 Correct 12 ms 20568 KB Output is correct
48 Correct 220 ms 47028 KB Output is correct
49 Correct 190 ms 39248 KB Output is correct
50 Execution timed out 4088 ms 43248 KB Time limit exceeded
51 Halted 0 ms 0 KB -