oj.uz

Submission #944784

# Submission time Handle Problem Language Result Execution time Memory
944784 2024-03-13T04:47:06 Z yeediot Minerals (JOI19_minerals) C++14
85 / 100
 41 ms 4440 KB 
#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
const int mxn=43000;
 
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
set<int>cur;
int color[mxn];
int cnt[mxn];
int n;
bool ok;
int tt=0;
void init(){
    cin>>n;
    for(int i=1;i<=2*n;i++){
        cin>>color[i];
    }
}
int res;
int Query(int x){
    tt++;
    if(cur.find(x)!=cur.end()){
        cur.erase(x);
        cnt[color[x]]--;
        if(cnt[color[x]]==0)res--;
    }
    else{
        cur.insert(x);
        cnt[color[x]]++;
        if(cnt[color[x]]==1)res++;
    }
    return res;
}
void Answer(int a,int b){
    if(a>b)swap(a,b);
    cout<<a<<' '<<b<<'\n';
    if(color[a]!=color[b]){
        ok=0;
    }
}
#else
void setio(){}
#include "minerals.h"
#endif
//////////////////
vector<int>cur2;
void Solve(int n){
    vector<int>temp;
    int prev=0;
    vector<int>ord(2*n);
    for(int i=1;i<=2*n;i++){
        ord[i-1]=i;
    }
    mt19937_64 rng(time(NULL));
    shuffle(all(ord),rng);
    for(int i=2*n;i>=1;i--){
        int x=ord[i-1];
        if(prev<=n and Query(x)==prev+1){
            prev++;
            temp.pb(x);
        }
        else{
            cur2.pb(x);
        }
    }
    queue<tuple<vector<int>,int,int,bool>>Q;
    Q.push({temp,0,n-1,1});
    while(sz(Q)){
        auto [cur,l,r,flag2]=Q.front();
        Q.pop();
        if(l==r){
            Answer(cur[0],cur2[l]);
            continue;
        }
        int mm;
        int len=(r-l)*0.375;
        if(flag2){
            mm=max(l,min(r-1,r-len));
        }
        else{
            mm=min(r-1,max(l,l+len));
        }
        int dick;
        if(flag2){
            for(int i=mm+1;i<=r;i++){
                dick=Query(cur2[i]);
            }
        }
        else{
            for(int i=l;i<=mm;i++){
                dick=Query(cur2[i]);
            }
        }
        vector<int>L,R;
        for(auto i:cur){
            int x=Query(i);
            if(x==dick){
                L.pb(i);
            }
            else{
                R.pb(i);
            }
            dick=x;
        }
        if(sz(L)){
            Q.push({L,l,mm,1});
        }
        if(sz(R)){
            Q.push({R,mm+1,r,0});
        }
    }
}
#ifdef local
int main(){
    ok=1;
    tt=0;
    setio();
    init();
    Solve(n);
    cout<<tt<<'\n';
    if(ok)cout<<"Accepted!\n";
    else cout<<"Wrong Answer\n";
}
#else
 
#endif
 
 /*
 input:
 ///////////////
 ///////
 //
     /
 /
  / 
 */

Compilation message

minerals.cpp: In function 'void Solve(int)':
minerals.cpp:80:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   80 |         auto [cur,l,r,flag2]=Q.front();
      |              ^
minerals.cpp:108:13: warning: 'dick' may be used uninitialized in this function [-Wmaybe-uninitialized]
  108 |             if(x==dick){
      |             ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 2 ms 600 KB Output is correct
3 Correct 3 ms 600 KB Output is correct
4 Correct 5 ms 856 KB Output is correct
5 Correct 11 ms 1576 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 30 ms 3492 KB Output is correct
16 Correct 29 ms 3344 KB Output is correct
17 Correct 33 ms 3816 KB Output is correct
18 Correct 31 ms 3456 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 30 ms 3492 KB Output is correct
16 Correct 29 ms 3344 KB Output is correct
17 Correct 33 ms 3816 KB Output is correct
18 Correct 31 ms 3456 KB Output is correct
19 Correct 31 ms 3488 KB Output is correct
20 Correct 31 ms 3492 KB Output is correct
21 Correct 31 ms 3552 KB Output is correct
22 Correct 29 ms 3628 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 30 ms 3492 KB Output is correct
16 Correct 29 ms 3344 KB Output is correct
17 Correct 33 ms 3816 KB Output is correct
18 Correct 31 ms 3456 KB Output is correct
19 Correct 31 ms 3488 KB Output is correct
20 Correct 31 ms 3492 KB Output is correct
21 Correct 31 ms 3552 KB Output is correct
22 Correct 29 ms 3628 KB Output is correct
23 Correct 32 ms 3492 KB Output is correct
24 Correct 41 ms 3492 KB Output is correct
25 Correct 33 ms 3884 KB Output is correct
26 Correct 35 ms 3348 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 30 ms 3492 KB Output is correct
16 Correct 29 ms 3344 KB Output is correct
17 Correct 33 ms 3816 KB Output is correct
18 Correct 31 ms 3456 KB Output is correct
19 Correct 31 ms 3488 KB Output is correct
20 Correct 31 ms 3492 KB Output is correct
21 Correct 31 ms 3552 KB Output is correct
22 Correct 29 ms 3628 KB Output is correct
23 Correct 32 ms 3492 KB Output is correct
24 Correct 41 ms 3492 KB Output is correct
25 Correct 33 ms 3884 KB Output is correct
26 Correct 35 ms 3348 KB Output is correct
27 Correct 41 ms 3748 KB Output is correct
28 Correct 36 ms 3756 KB Output is correct
29 Correct 39 ms 3896 KB Output is correct
30 Correct 30 ms 4440 KB Output is correct

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 30 ms 3492 KB Output is correct
16 Correct 29 ms 3344 KB Output is correct
17 Correct 33 ms 3816 KB Output is correct
18 Correct 31 ms 3456 KB Output is correct
19 Correct 31 ms 3488 KB Output is correct
20 Correct 31 ms 3492 KB Output is correct
21 Correct 31 ms 3552 KB Output is correct
22 Correct 29 ms 3628 KB Output is correct
23 Correct 32 ms 3492 KB Output is correct
24 Correct 41 ms 3492 KB Output is correct
25 Correct 33 ms 3884 KB Output is correct
26 Correct 35 ms 3348 KB Output is correct
27 Correct 41 ms 3748 KB Output is correct
28 Correct 36 ms 3756 KB Output is correct
29 Correct 39 ms 3896 KB Output is correct
30 Correct 30 ms 4440 KB Output is correct
31 Incorrect 31 ms 3976 KB Wrong Answer [2]
32 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1368 KB Output is correct
12 Correct 11 ms 1628 KB Output is correct
13 Correct 10 ms 1876 KB Output is correct
14 Correct 10 ms 1620 KB Output is correct
15 Correct 30 ms 3492 KB Output is correct
16 Correct 29 ms 3344 KB Output is correct
17 Correct 33 ms 3816 KB Output is correct
18 Correct 31 ms 3456 KB Output is correct
19 Correct 31 ms 3488 KB Output is correct
20 Correct 31 ms 3492 KB Output is correct
21 Correct 31 ms 3552 KB Output is correct
22 Correct 29 ms 3628 KB Output is correct
23 Correct 32 ms 3492 KB Output is correct
24 Correct 41 ms 3492 KB Output is correct
25 Correct 33 ms 3884 KB Output is correct
26 Correct 35 ms 3348 KB Output is correct
27 Correct 41 ms 3748 KB Output is correct
28 Correct 36 ms 3756 KB Output is correct
29 Correct 39 ms 3896 KB Output is correct
30 Correct 30 ms 4440 KB Output is correct
31 Incorrect 31 ms 3976 KB Wrong Answer [2]
32 Halted 0 ms 0 KB -