oj.uz

Submission #944788

# Submission time Handle Problem Language Result Execution time Memory
944788 2024-03-13T04:49:55 Z yeediot Minerals (JOI19_minerals) C++14
85 / 100
 36 ms 4188 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)*0.38;
        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 0 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 1 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 10 ms 1428 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 KB Output is correct
15 Correct 29 ms 3496 KB Output is correct
16 Correct 30 ms 3360 KB Output is correct
17 Correct 28 ms 3652 KB Output is correct
18 Correct 32 ms 3656 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 KB Output is correct
15 Correct 29 ms 3496 KB Output is correct
16 Correct 30 ms 3360 KB Output is correct
17 Correct 28 ms 3652 KB Output is correct
18 Correct 32 ms 3656 KB Output is correct
19 Correct 33 ms 3824 KB Output is correct
20 Correct 29 ms 3356 KB Output is correct
21 Correct 29 ms 3460 KB Output is correct
22 Correct 30 ms 3336 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 KB Output is correct
15 Correct 29 ms 3496 KB Output is correct
16 Correct 30 ms 3360 KB Output is correct
17 Correct 28 ms 3652 KB Output is correct
18 Correct 32 ms 3656 KB Output is correct
19 Correct 33 ms 3824 KB Output is correct
20 Correct 29 ms 3356 KB Output is correct
21 Correct 29 ms 3460 KB Output is correct
22 Correct 30 ms 3336 KB Output is correct
23 Correct 30 ms 3600 KB Output is correct
24 Correct 31 ms 3684 KB Output is correct
25 Correct 30 ms 4188 KB Output is correct
26 Correct 30 ms 3344 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 KB Output is correct
15 Correct 29 ms 3496 KB Output is correct
16 Correct 30 ms 3360 KB Output is correct
17 Correct 28 ms 3652 KB Output is correct
18 Correct 32 ms 3656 KB Output is correct
19 Correct 33 ms 3824 KB Output is correct
20 Correct 29 ms 3356 KB Output is correct
21 Correct 29 ms 3460 KB Output is correct
22 Correct 30 ms 3336 KB Output is correct
23 Correct 30 ms 3600 KB Output is correct
24 Correct 31 ms 3684 KB Output is correct
25 Correct 30 ms 4188 KB Output is correct
26 Correct 30 ms 3344 KB Output is correct
27 Correct 32 ms 3736 KB Output is correct
28 Correct 31 ms 3748 KB Output is correct
29 Correct 31 ms 4080 KB Output is correct
30 Correct 31 ms 3764 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 KB Output is correct
15 Correct 29 ms 3496 KB Output is correct
16 Correct 30 ms 3360 KB Output is correct
17 Correct 28 ms 3652 KB Output is correct
18 Correct 32 ms 3656 KB Output is correct
19 Correct 33 ms 3824 KB Output is correct
20 Correct 29 ms 3356 KB Output is correct
21 Correct 29 ms 3460 KB Output is correct
22 Correct 30 ms 3336 KB Output is correct
23 Correct 30 ms 3600 KB Output is correct
24 Correct 31 ms 3684 KB Output is correct
25 Correct 30 ms 4188 KB Output is correct
26 Correct 30 ms 3344 KB Output is correct
27 Correct 32 ms 3736 KB Output is correct
28 Correct 31 ms 3748 KB Output is correct
29 Correct 31 ms 4080 KB Output is correct
30 Correct 31 ms 3764 KB Output is correct
31 Incorrect 36 ms 3740 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 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 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 10 ms 1428 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1620 KB Output is correct
13 Correct 12 ms 1704 KB Output is correct
14 Correct 10 ms 1436 KB Output is correct
15 Correct 29 ms 3496 KB Output is correct
16 Correct 30 ms 3360 KB Output is correct
17 Correct 28 ms 3652 KB Output is correct
18 Correct 32 ms 3656 KB Output is correct
19 Correct 33 ms 3824 KB Output is correct
20 Correct 29 ms 3356 KB Output is correct
21 Correct 29 ms 3460 KB Output is correct
22 Correct 30 ms 3336 KB Output is correct
23 Correct 30 ms 3600 KB Output is correct
24 Correct 31 ms 3684 KB Output is correct
25 Correct 30 ms 4188 KB Output is correct
26 Correct 30 ms 3344 KB Output is correct
27 Correct 32 ms 3736 KB Output is correct
28 Correct 31 ms 3748 KB Output is correct
29 Correct 31 ms 4080 KB Output is correct
30 Correct 31 ms 3764 KB Output is correct
31 Incorrect 36 ms 3740 KB Wrong Answer [2]
32 Halted 0 ms 0 KB -