oj.uz

Submission #944706

# Submission time Handle Problem Language Result Execution time Memory
944706 2024-03-13T04:05:56 Z yeediot Minerals (JOI19_minerals) C++14
80 / 100
 35 ms 4416 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;
    for(int i=1;i<=2*n;i++){
        if(Query(i)==prev+1){
            prev++;
            temp.pb(i);
        }
        else{
            cur2.pb(i);
        }
    }
    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=l+r>>1;
        if(flag2){
            mm=max(l,min(r-1,mm+1));
        }
        else{
            mm=min(r-1,max(l,mm-1));
        }
        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:
 2n+nlogn+1/2(nlogn)
 */

Compilation message

minerals.cpp: In function 'void Solve(int)':
minerals.cpp:73:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   73 |         auto [cur,l,r,flag2]=Q.front();
      |              ^
minerals.cpp:79:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   79 |         int mm=l+r>>1;
      |                ~^~
minerals.cpp:100:13: warning: 'dick' may be used uninitialized in this function [-Wmaybe-uninitialized]
  100 |             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 1 ms 600 KB Output is correct
3 Correct 2 ms 644 KB Output is correct
4 Correct 5 ms 856 KB Output is correct
5 Correct 9 ms 1624 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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 26 ms 3668 KB Output is correct
16 Correct 27 ms 3668 KB Output is correct
17 Correct 19 ms 3672 KB Output is correct
18 Correct 20 ms 3816 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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 26 ms 3668 KB Output is correct
16 Correct 27 ms 3668 KB Output is correct
17 Correct 19 ms 3672 KB Output is correct
18 Correct 20 ms 3816 KB Output is correct
19 Correct 35 ms 3652 KB Output is correct
20 Correct 25 ms 3676 KB Output is correct
21 Correct 19 ms 3744 KB Output is correct
22 Correct 19 ms 3848 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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 26 ms 3668 KB Output is correct
16 Correct 27 ms 3668 KB Output is correct
17 Correct 19 ms 3672 KB Output is correct
18 Correct 20 ms 3816 KB Output is correct
19 Correct 35 ms 3652 KB Output is correct
20 Correct 25 ms 3676 KB Output is correct
21 Correct 19 ms 3744 KB Output is correct
22 Correct 19 ms 3848 KB Output is correct
23 Correct 27 ms 3660 KB Output is correct
24 Correct 27 ms 3872 KB Output is correct
25 Correct 21 ms 4416 KB Output is correct
26 Correct 19 ms 3608 KB Output is correct

Subtask #7
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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 26 ms 3668 KB Output is correct
16 Correct 27 ms 3668 KB Output is correct
17 Correct 19 ms 3672 KB Output is correct
18 Correct 20 ms 3816 KB Output is correct
19 Correct 35 ms 3652 KB Output is correct
20 Correct 25 ms 3676 KB Output is correct
21 Correct 19 ms 3744 KB Output is correct
22 Correct 19 ms 3848 KB Output is correct
23 Correct 27 ms 3660 KB Output is correct
24 Correct 27 ms 3872 KB Output is correct
25 Correct 21 ms 4416 KB Output is correct
26 Correct 19 ms 3608 KB Output is correct
27 Incorrect 26 ms 3704 KB Wrong Answer [2]
28 Halted 0 ms 0 KB -

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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 26 ms 3668 KB Output is correct
16 Correct 27 ms 3668 KB Output is correct
17 Correct 19 ms 3672 KB Output is correct
18 Correct 20 ms 3816 KB Output is correct
19 Correct 35 ms 3652 KB Output is correct
20 Correct 25 ms 3676 KB Output is correct
21 Correct 19 ms 3744 KB Output is correct
22 Correct 19 ms 3848 KB Output is correct
23 Correct 27 ms 3660 KB Output is correct
24 Correct 27 ms 3872 KB Output is correct
25 Correct 21 ms 4416 KB Output is correct
26 Correct 19 ms 3608 KB Output is correct
27 Incorrect 26 ms 3704 KB Wrong Answer [2]
28 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 1 ms 600 KB Output is correct
7 Correct 2 ms 644 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1624 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1284 KB Output is correct
12 Correct 9 ms 1624 KB Output is correct
13 Correct 8 ms 1752 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 26 ms 3668 KB Output is correct
16 Correct 27 ms 3668 KB Output is correct
17 Correct 19 ms 3672 KB Output is correct
18 Correct 20 ms 3816 KB Output is correct
19 Correct 35 ms 3652 KB Output is correct
20 Correct 25 ms 3676 KB Output is correct
21 Correct 19 ms 3744 KB Output is correct
22 Correct 19 ms 3848 KB Output is correct
23 Correct 27 ms 3660 KB Output is correct
24 Correct 27 ms 3872 KB Output is correct
25 Correct 21 ms 4416 KB Output is correct
26 Correct 19 ms 3608 KB Output is correct
27 Incorrect 26 ms 3704 KB Wrong Answer [2]
28 Halted 0 ms 0 KB -