oj.uz

Submission #1085765

# Submission time Handle Problem Language Result Execution time Memory
1085765 2024-09-08T16:15:26 Z alexander707070 Game (APIO22_game) C++17
60 / 100
 4000 ms 47184 KB 
#include<bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#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 sum;

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;

    sum+=news.size();
    if(sum>n)cout<<1/0;

    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:56:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for(int i=0;i<v[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'int dfs2(int, int, int)':
game.cpp:83:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |     for(int i=0;i<r[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'void dfs3(int)':
game.cpp:97:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |     for(int i=0;i<v[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'int dfs4(int)':
game.cpp:111:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |     for(int i=0;i<r[x].size();i++){
      |                 ~^~~~~~~~~~~~
game.cpp: In function 'int add_teleporter(int, int)':
game.cpp:146:21: warning: division by zero [-Wdiv-by-zero]
  146 |     if(sum>n)cout<<1/0;
      |                    ~^~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 7 ms 14424 KB Output is correct
4 Correct 6 ms 14424 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 7 ms 14368 KB Output is correct
7 Correct 7 ms 14424 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 7 ms 14424 KB Output is correct
4 Correct 6 ms 14424 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 7 ms 14368 KB Output is correct
7 Correct 7 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 6 ms 14424 KB Output is correct
11 Correct 7 ms 14436 KB Output is correct
12 Correct 6 ms 14424 KB Output is correct
13 Correct 6 ms 14424 KB Output is correct
14 Correct 7 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 6 ms 14424 KB Output is correct
17 Correct 6 ms 14436 KB Output is correct
18 Correct 6 ms 14352 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 7 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 7 ms 14424 KB Output is correct
4 Correct 6 ms 14424 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 7 ms 14368 KB Output is correct
7 Correct 7 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 6 ms 14424 KB Output is correct
11 Correct 7 ms 14436 KB Output is correct
12 Correct 6 ms 14424 KB Output is correct
13 Correct 6 ms 14424 KB Output is correct
14 Correct 7 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 6 ms 14424 KB Output is correct
17 Correct 6 ms 14436 KB Output is correct
18 Correct 6 ms 14352 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct
20 Correct 7 ms 14424 KB Output is correct
21 Correct 7 ms 14424 KB Output is correct
22 Correct 8 ms 14424 KB Output is correct
23 Correct 6 ms 14472 KB Output is correct
24 Correct 7 ms 14424 KB Output is correct
25 Correct 7 ms 14680 KB Output is correct
26 Correct 7 ms 14680 KB Output is correct
27 Correct 8 ms 14576 KB Output is correct
28 Correct 7 ms 14424 KB Output is correct
29 Correct 7 ms 14680 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 7 ms 14424 KB Output is correct
4 Correct 6 ms 14424 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 7 ms 14368 KB Output is correct
7 Correct 7 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 6 ms 14424 KB Output is correct
11 Correct 7 ms 14436 KB Output is correct
12 Correct 6 ms 14424 KB Output is correct
13 Correct 6 ms 14424 KB Output is correct
14 Correct 7 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 6 ms 14424 KB Output is correct
17 Correct 6 ms 14436 KB Output is correct
18 Correct 6 ms 14352 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct
20 Correct 7 ms 14424 KB Output is correct
21 Correct 7 ms 14424 KB Output is correct
22 Correct 8 ms 14424 KB Output is correct
23 Correct 6 ms 14472 KB Output is correct
24 Correct 7 ms 14424 KB Output is correct
25 Correct 7 ms 14680 KB Output is correct
26 Correct 7 ms 14680 KB Output is correct
27 Correct 8 ms 14576 KB Output is correct
28 Correct 7 ms 14424 KB Output is correct
29 Correct 7 ms 14680 KB Output is correct
30 Correct 20 ms 16216 KB Output is correct
31 Correct 10 ms 15452 KB Output is correct
32 Correct 21 ms 17328 KB Output is correct
33 Correct 16 ms 16984 KB Output is correct
34 Correct 76 ms 19044 KB Output is correct
35 Correct 59 ms 18512 KB Output is correct
36 Correct 59 ms 16976 KB Output is correct
37 Correct 35 ms 17220 KB Output is correct
38 Correct 32 ms 16820 KB Output is correct
39 Correct 25 ms 16728 KB Output is correct
40 Correct 85 ms 19024 KB Output is correct
41 Correct 41 ms 17588 KB Output is correct
42 Correct 31 ms 17488 KB Output is correct
43 Correct 38 ms 18928 KB Output is correct
44 Correct 84 ms 18752 KB Output is correct

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14424 KB Output is correct
2 Correct 6 ms 14424 KB Output is correct
3 Correct 7 ms 14424 KB Output is correct
4 Correct 6 ms 14424 KB Output is correct
5 Correct 6 ms 14424 KB Output is correct
6 Correct 7 ms 14368 KB Output is correct
7 Correct 7 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 6 ms 14424 KB Output is correct
11 Correct 7 ms 14436 KB Output is correct
12 Correct 6 ms 14424 KB Output is correct
13 Correct 6 ms 14424 KB Output is correct
14 Correct 7 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 6 ms 14424 KB Output is correct
17 Correct 6 ms 14436 KB Output is correct
18 Correct 6 ms 14352 KB Output is correct
19 Correct 6 ms 14424 KB Output is correct
20 Correct 7 ms 14424 KB Output is correct
21 Correct 7 ms 14424 KB Output is correct
22 Correct 8 ms 14424 KB Output is correct
23 Correct 6 ms 14472 KB Output is correct
24 Correct 7 ms 14424 KB Output is correct
25 Correct 7 ms 14680 KB Output is correct
26 Correct 7 ms 14680 KB Output is correct
27 Correct 8 ms 14576 KB Output is correct
28 Correct 7 ms 14424 KB Output is correct
29 Correct 7 ms 14680 KB Output is correct
30 Correct 20 ms 16216 KB Output is correct
31 Correct 10 ms 15452 KB Output is correct
32 Correct 21 ms 17328 KB Output is correct
33 Correct 16 ms 16984 KB Output is correct
34 Correct 76 ms 19044 KB Output is correct
35 Correct 59 ms 18512 KB Output is correct
36 Correct 59 ms 16976 KB Output is correct
37 Correct 35 ms 17220 KB Output is correct
38 Correct 32 ms 16820 KB Output is correct
39 Correct 25 ms 16728 KB Output is correct
40 Correct 85 ms 19024 KB Output is correct
41 Correct 41 ms 17588 KB Output is correct
42 Correct 31 ms 17488 KB Output is correct
43 Correct 38 ms 18928 KB Output is correct
44 Correct 84 ms 18752 KB Output is correct
45 Correct 170 ms 31824 KB Output is correct
46 Correct 14 ms 20824 KB Output is correct
47 Correct 14 ms 20568 KB Output is correct
48 Correct 250 ms 47184 KB Output is correct
49 Correct 189 ms 39252 KB Output is correct
50 Execution timed out 4093 ms 43056 KB Time limit exceeded
51 Halted 0 ms 0 KB -