oj.uz

Submission #419988

# Submission time Handle Problem Language Result Execution time Memory
419988 2021-06-07T21:04:54 Z davi_bart Crossing (JOI21_crossing) C++17
49 / 100
 7000 ms 8972 KB 
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define fi first
#define se second
#define ld long double
#define pb push_back
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int N,Q;
set<string> k;
string a,b,c;
string t;
vector<vector<int> > h;
const int dim=50;
const int p=257,mod=1e9+9;
vector<int> pot;
vector<int> tt;
map<char,int> val;
vector<char> qq(1000010,'x');
int hasha(string q){
    int l=0;
    for(auto k:q)l=(l*p+k)%mod;
    for(int i=q.size();i<dim;i++)l=l*p%mod;
    return l;
}
void solve(){
    for(auto v:h){
        bool ok=1;
        for(int i=0;i<v.size();i++)if(v[i]!=tt[i])ok=0;
        if(ok){
            cout<<"Yes\n";
            return;
        }
    }
    cout<<"No\n";
}
string cross(string x,string y){
    string ans="";
    vector<char> s={'I','J','O'};
    for(int i=0;i<x.size();i++){
        if(x[i]==y[i])ans+=x[i];
        else{
            for(auto h:s)if(x[i]!=h && y[i]!=h)ans+=h;
        }
    }
    return ans;
}
void calc(){
    while(1){
        bool ok=0;
        for(auto x:k){
            for(auto y:k){
                string h=cross(x,y);
                if(k.count(h))continue;
                ok=1;
                k.insert(h);
            }
        }
        if(!ok)break;
    }
}
signed main(){
	ios::sync_with_stdio(false);cin.tie(0);
    cin>>N>>a>>b>>c>>Q>>t;
    k.insert(a);k.insert(b);k.insert(c);
    calc();
    assert(k.size()<10);
    pot={1};
    for(int i=0;i<300010;i++)pot.pb(pot.back()*p%mod);

    val['I']=hasha(string(dim,'I'));
    val['J']=hasha(string(dim,'J'));
    val['O']=hasha(string(dim,'O'));

    for(auto y:k){
        h.pb(vector<int> ());
        for(int i=0;i*dim<N;i++){
            string cur="";
            for(int j=dim*i;j<min(N,dim*(i+1));j++){
                cur+=y[j];
            }
            h.back().pb(hasha(cur));
            //cout<<"iniziali: "<<h.back().back()<<endl;
        }
    }
    for(int i=0;i*dim<N;i++){
        string cur="";
        for(int j=dim*i;j<min(N,dim*(i+1));j++){
            cur+=t[j];
        }
        tt.pb(hasha(cur));
    }
    //cout<<tt[0]<<" "<<hasha(t)<<endl;
    solve();
    for(int i=0;i<Q;i++){
        int x,y;
        char z;
        cin>>x>>y>>z;
        x--;y--;
        int pos=x-x%dim;
        for(int j=pos;j<min(N,pos+dim);j++){
            int pp=j/dim;
            if(qq[pp]!='x')t[j]=qq[pp];

            tt[pp]-=t[j]*pot[dim-j%dim-1];
            if(j>=x && j<=y)t[j]=z;
            tt[pp]+=t[j]*pot[dim-j%dim-1];
            tt[pp]=(tt[pp]%mod+mod)%mod;
        }
        qq[pos/dim]='x';

        x=x-x%dim+dim;

        pos=y-y%dim;
        for(int j=pos;j<min(N,pos+dim);j++){
            int pp=j/dim;
            if(qq[pp]!='x')t[j]=qq[pp];

            tt[pp]-=t[j]*pot[dim-j%dim-1];
            if(j>=x && j<=y)t[j]=z;
            tt[pp]+=t[j]*pot[dim-j%dim-1];
            tt[pp]=(tt[pp]%mod+mod)%mod;
        }
        y=y-y%dim;
        qq[pos/dim]='x';

        for(int j=x;j<y;j+=dim){
            int pp=j/dim;
            tt[pp]=val[z];
            qq[pp]=z;
        }

        //cout<<tt[0]<<" "<<hasha(t)<<endl;
        solve();
    }
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:31:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         for(int i=0;i<v.size();i++)if(v[i]!=tt[i])ok=0;
      |                     ~^~~~~~~~~
Main.cpp: In function 'std::string cross(std::string, std::string)':
Main.cpp:42:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i=0;i<x.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 5444 KB Output is correct
2 Correct 307 ms 5444 KB Output is correct
3 Correct 334 ms 5496 KB Output is correct
4 Correct 289 ms 5444 KB Output is correct
5 Correct 279 ms 5444 KB Output is correct
6 Correct 283 ms 5444 KB Output is correct
7 Correct 261 ms 5588 KB Output is correct
8 Correct 305 ms 5444 KB Output is correct
9 Correct 303 ms 5444 KB Output is correct
10 Correct 307 ms 5444 KB Output is correct
11 Correct 304 ms 5444 KB Output is correct
12 Correct 320 ms 5444 KB Output is correct
13 Correct 322 ms 5444 KB Output is correct
14 Correct 304 ms 5572 KB Output is correct
15 Correct 303 ms 5444 KB Output is correct
16 Correct 303 ms 5500 KB Output is correct
17 Correct 307 ms 5444 KB Output is correct
18 Correct 345 ms 5544 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 5444 KB Output is correct
2 Correct 307 ms 5444 KB Output is correct
3 Correct 334 ms 5496 KB Output is correct
4 Correct 289 ms 5444 KB Output is correct
5 Correct 279 ms 5444 KB Output is correct
6 Correct 283 ms 5444 KB Output is correct
7 Correct 261 ms 5588 KB Output is correct
8 Correct 305 ms 5444 KB Output is correct
9 Correct 303 ms 5444 KB Output is correct
10 Correct 307 ms 5444 KB Output is correct
11 Correct 304 ms 5444 KB Output is correct
12 Correct 320 ms 5444 KB Output is correct
13 Correct 322 ms 5444 KB Output is correct
14 Correct 304 ms 5572 KB Output is correct
15 Correct 303 ms 5444 KB Output is correct
16 Correct 303 ms 5500 KB Output is correct
17 Correct 307 ms 5444 KB Output is correct
18 Correct 345 ms 5544 KB Output is correct
19 Correct 1755 ms 6608 KB Output is correct
20 Correct 5682 ms 6608 KB Output is correct
21 Correct 957 ms 6588 KB Output is correct
22 Correct 897 ms 6512 KB Output is correct
23 Correct 370 ms 5564 KB Output is correct
24 Correct 369 ms 5564 KB Output is correct
25 Correct 1158 ms 6652 KB Output is correct
26 Correct 1055 ms 6608 KB Output is correct
27 Correct 1212 ms 6608 KB Output is correct
28 Correct 1195 ms 6608 KB Output is correct
29 Correct 1205 ms 6624 KB Output is correct
30 Correct 393 ms 5564 KB Output is correct
31 Correct 1205 ms 6608 KB Output is correct
32 Correct 1086 ms 6556 KB Output is correct
33 Correct 373 ms 5564 KB Output is correct
34 Correct 1175 ms 6608 KB Output is correct
35 Correct 809 ms 6432 KB Output is correct
36 Correct 365 ms 5692 KB Output is correct
37 Correct 369 ms 5564 KB Output is correct
38 Correct 5770 ms 6608 KB Output is correct
39 Correct 1064 ms 6608 KB Output is correct
40 Correct 815 ms 6256 KB Output is correct
41 Correct 2814 ms 6608 KB Output is correct
42 Correct 6204 ms 6608 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 5444 KB Output is correct
2 Correct 307 ms 5444 KB Output is correct
3 Correct 334 ms 5496 KB Output is correct
4 Correct 289 ms 5444 KB Output is correct
5 Correct 279 ms 5444 KB Output is correct
6 Correct 283 ms 5444 KB Output is correct
7 Correct 261 ms 5588 KB Output is correct
8 Correct 305 ms 5444 KB Output is correct
9 Correct 303 ms 5444 KB Output is correct
10 Correct 307 ms 5444 KB Output is correct
11 Correct 304 ms 5444 KB Output is correct
12 Correct 320 ms 5444 KB Output is correct
13 Correct 322 ms 5444 KB Output is correct
14 Correct 304 ms 5572 KB Output is correct
15 Correct 303 ms 5444 KB Output is correct
16 Correct 303 ms 5500 KB Output is correct
17 Correct 307 ms 5444 KB Output is correct
18 Correct 345 ms 5544 KB Output is correct
19 Correct 343 ms 5440 KB Output is correct
20 Correct 402 ms 5440 KB Output is correct
21 Correct 321 ms 5444 KB Output is correct
22 Correct 255 ms 5444 KB Output is correct
23 Correct 318 ms 5444 KB Output is correct
24 Correct 290 ms 5444 KB Output is correct
25 Correct 321 ms 5444 KB Output is correct
26 Correct 269 ms 5492 KB Output is correct
27 Correct 322 ms 5444 KB Output is correct
28 Correct 284 ms 5500 KB Output is correct
29 Correct 330 ms 5444 KB Output is correct
30 Correct 286 ms 5524 KB Output is correct
31 Correct 360 ms 5568 KB Output is correct
32 Correct 339 ms 5568 KB Output is correct
33 Correct 360 ms 5440 KB Output is correct
34 Correct 299 ms 5440 KB Output is correct
35 Correct 361 ms 5440 KB Output is correct
36 Correct 367 ms 5440 KB Output is correct
37 Correct 359 ms 5440 KB Output is correct
38 Correct 358 ms 5440 KB Output is correct
39 Correct 401 ms 5440 KB Output is correct
40 Correct 358 ms 5568 KB Output is correct
41 Correct 392 ms 5440 KB Output is correct
42 Correct 353 ms 5440 KB Output is correct
43 Correct 360 ms 5496 KB Output is correct
44 Correct 365 ms 5452 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 5444 KB Output is correct
2 Correct 307 ms 5444 KB Output is correct
3 Correct 334 ms 5496 KB Output is correct
4 Correct 289 ms 5444 KB Output is correct
5 Correct 279 ms 5444 KB Output is correct
6 Correct 283 ms 5444 KB Output is correct
7 Correct 261 ms 5588 KB Output is correct
8 Correct 305 ms 5444 KB Output is correct
9 Correct 303 ms 5444 KB Output is correct
10 Correct 307 ms 5444 KB Output is correct
11 Correct 304 ms 5444 KB Output is correct
12 Correct 320 ms 5444 KB Output is correct
13 Correct 322 ms 5444 KB Output is correct
14 Correct 304 ms 5572 KB Output is correct
15 Correct 303 ms 5444 KB Output is correct
16 Correct 303 ms 5500 KB Output is correct
17 Correct 307 ms 5444 KB Output is correct
18 Correct 345 ms 5544 KB Output is correct
19 Correct 1755 ms 6608 KB Output is correct
20 Correct 5682 ms 6608 KB Output is correct
21 Correct 957 ms 6588 KB Output is correct
22 Correct 897 ms 6512 KB Output is correct
23 Correct 370 ms 5564 KB Output is correct
24 Correct 369 ms 5564 KB Output is correct
25 Correct 1158 ms 6652 KB Output is correct
26 Correct 1055 ms 6608 KB Output is correct
27 Correct 1212 ms 6608 KB Output is correct
28 Correct 1195 ms 6608 KB Output is correct
29 Correct 1205 ms 6624 KB Output is correct
30 Correct 393 ms 5564 KB Output is correct
31 Correct 1205 ms 6608 KB Output is correct
32 Correct 1086 ms 6556 KB Output is correct
33 Correct 373 ms 5564 KB Output is correct
34 Correct 1175 ms 6608 KB Output is correct
35 Correct 809 ms 6432 KB Output is correct
36 Correct 365 ms 5692 KB Output is correct
37 Correct 369 ms 5564 KB Output is correct
38 Correct 5770 ms 6608 KB Output is correct
39 Correct 1064 ms 6608 KB Output is correct
40 Correct 815 ms 6256 KB Output is correct
41 Correct 2814 ms 6608 KB Output is correct
42 Correct 6204 ms 6608 KB Output is correct
43 Correct 343 ms 5440 KB Output is correct
44 Correct 402 ms 5440 KB Output is correct
45 Correct 321 ms 5444 KB Output is correct
46 Correct 255 ms 5444 KB Output is correct
47 Correct 318 ms 5444 KB Output is correct
48 Correct 290 ms 5444 KB Output is correct
49 Correct 321 ms 5444 KB Output is correct
50 Correct 269 ms 5492 KB Output is correct
51 Correct 322 ms 5444 KB Output is correct
52 Correct 284 ms 5500 KB Output is correct
53 Correct 330 ms 5444 KB Output is correct
54 Correct 286 ms 5524 KB Output is correct
55 Correct 360 ms 5568 KB Output is correct
56 Correct 339 ms 5568 KB Output is correct
57 Correct 360 ms 5440 KB Output is correct
58 Correct 299 ms 5440 KB Output is correct
59 Correct 361 ms 5440 KB Output is correct
60 Correct 367 ms 5440 KB Output is correct
61 Correct 359 ms 5440 KB Output is correct
62 Correct 358 ms 5440 KB Output is correct
63 Correct 401 ms 5440 KB Output is correct
64 Correct 358 ms 5568 KB Output is correct
65 Correct 392 ms 5440 KB Output is correct
66 Correct 353 ms 5440 KB Output is correct
67 Correct 360 ms 5496 KB Output is correct
68 Correct 365 ms 5452 KB Output is correct
69 Correct 6466 ms 8236 KB Output is correct
70 Execution timed out 7040 ms 8972 KB Time limit exceeded
71 Halted 0 ms 0 KB -