oj.uz

Submission #340605

# Submission time Handle Problem Language Result Execution time Memory
340605 2020-12-28T01:22:47 Z A_D Klasika (COCI20_klasika) C++14
33 / 110
 5000 ms 26484 KB 
/*
ID: antwand1
TASK: barn1
LANG: C++
*/
#include <bits/stdc++.h>
#define ll long long
#define du long double
#define F first
#define S second
using namespace std;
const int N=1e6+100;
vector<pair<int,int>> g[N];
int sz=1,mx=0;
bool ok[N];
void dfs(int u,int p,int we)
{
    if(ok[u])mx=max(mx,we);
    for(auto x:g[u]){
        if(x.F!=p){
            dfs(x.F,u,we^x.S);
        }
    }
}
void dfs2(int u,int p,int tar)
{
//    cout<<u<<" "<<tar<<endl;
    if(tar==u)tar=0;
    if(tar==0)ok[u]=1;
    for(auto x:g[u]){
        if(x.F!=p){
            dfs2(x.F,u,tar);
        }
    }
}

main()
{
    //freopen("barn1.in","r",stdin);freopen("barn1.out","w",stdout);
    int n;
    cin>>n;
    while(n--){
        string s;
        cin>>s;
        if(s=="Add"){
            sz++;
            int a,b;
            cin>>a>>b;
            g[sz].push_back({a,b});
            g[a].push_back({sz,b});
        }
        else{
            for(int i=1;i<=sz;i++){
          //      cout<<i<<" :";
            //    for(auto x:g[i])cout<<x.F<<" ";cout<<endl;
            }
            int a,b;
            cin>>a>>b;
            for(int i=1;i<=sz;i++)ok[i]=0;
            dfs2(1,1,b);
  //          for(int i=1;i<=sz;i++)cout<<ok[i]<<" ";cout<<endl;
            mx=0;
            dfs(a,a,0);
            cout<<mx<<endl;
        }
    }
}

Compilation message

klasika.cpp:37:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   37 | main()
      |      ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 17 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 15 ms 23788 KB Output is correct
11 Correct 15 ms 23788 KB Output is correct
12 Correct 15 ms 23788 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 17 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 15 ms 23788 KB Output is correct
11 Correct 15 ms 23788 KB Output is correct
12 Correct 15 ms 23788 KB Output is correct
13 Correct 26 ms 23916 KB Output is correct
14 Correct 28 ms 23916 KB Output is correct
15 Correct 26 ms 23916 KB Output is correct
16 Correct 23 ms 24044 KB Output is correct
17 Correct 27 ms 24044 KB Output is correct
18 Correct 31 ms 23916 KB Output is correct
19 Correct 30 ms 23916 KB Output is correct
20 Correct 27 ms 23916 KB Output is correct
21 Correct 27 ms 23916 KB Output is correct
22 Correct 33 ms 23916 KB Output is correct
23 Correct 31 ms 23916 KB Output is correct
24 Correct 27 ms 23916 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5074 ms 26484 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 17 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 15 ms 23788 KB Output is correct
11 Correct 15 ms 23788 KB Output is correct
12 Correct 15 ms 23788 KB Output is correct
13 Correct 26 ms 23916 KB Output is correct
14 Correct 28 ms 23916 KB Output is correct
15 Correct 26 ms 23916 KB Output is correct
16 Correct 23 ms 24044 KB Output is correct
17 Correct 27 ms 24044 KB Output is correct
18 Correct 31 ms 23916 KB Output is correct
19 Correct 30 ms 23916 KB Output is correct
20 Correct 27 ms 23916 KB Output is correct
21 Correct 27 ms 23916 KB Output is correct
22 Correct 33 ms 23916 KB Output is correct
23 Correct 31 ms 23916 KB Output is correct
24 Correct 27 ms 23916 KB Output is correct
25 Execution timed out 5074 ms 26484 KB Time limit exceeded
26 Halted 0 ms 0 KB -