oj.uz

Submission #944695

# Submission time Handle Problem Language Result Execution time Memory
944695 2024-03-13T03:50:29 Z yeediot Minerals (JOI19_minerals) C++14
80 / 100
 31 ms 4924 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);
        }
    }
    // for(auto i:temp){
    //     Query(i);
    // }
    queue<tuple<vector<int>,int,int,bool,bool>>Q;
    Q.push({temp,0,n-1,1,1});
    while(sz(Q)){
        auto [cur,l,r,flag,flag2]=Q.front();
        Q.pop();
        if(l==r){
            Answer(cur[0],cur2[l]);
            continue;
        }
        int mm=l+r>>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;
        if(!flag){
            for(auto i:cur){
                int x=Query(i);
                if(x==dick){
                    L.pb(i);
                }
                else{
                    R.pb(i);
                }
                dick=x;
                //Query(i);
            }
        }
        else{
            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-flag,1});
        }
        if(sz(R)){
            Q.push({R,mm+1,r,1-flag,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:76:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   76 |         auto [cur,l,r,flag,flag2]=Q.front();
      |              ^
minerals.cpp:82:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   82 |         int mm=l+r>>1;
      |                ~^~
minerals.cpp:98:17: warning: 'dick' may be used uninitialized in this function [-Wmaybe-uninitialized]
   98 |                 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 1 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 340 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 2 ms 856 KB Output is correct
4 Correct 4 ms 1272 KB Output is correct
5 Correct 9 ms 1872 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 31 ms 4140 KB Output is correct
16 Correct 27 ms 4164 KB Output is correct
17 Correct 18 ms 4924 KB Output is correct
18 Correct 18 ms 4332 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 31 ms 4140 KB Output is correct
16 Correct 27 ms 4164 KB Output is correct
17 Correct 18 ms 4924 KB Output is correct
18 Correct 18 ms 4332 KB Output is correct
19 Correct 26 ms 4344 KB Output is correct
20 Correct 28 ms 4188 KB Output is correct
21 Correct 19 ms 4216 KB Output is correct
22 Correct 22 ms 4264 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 31 ms 4140 KB Output is correct
16 Correct 27 ms 4164 KB Output is correct
17 Correct 18 ms 4924 KB Output is correct
18 Correct 18 ms 4332 KB Output is correct
19 Correct 26 ms 4344 KB Output is correct
20 Correct 28 ms 4188 KB Output is correct
21 Correct 19 ms 4216 KB Output is correct
22 Correct 22 ms 4264 KB Output is correct
23 Correct 25 ms 4172 KB Output is correct
24 Correct 26 ms 4408 KB Output is correct
25 Correct 21 ms 4400 KB Output is correct
26 Correct 21 ms 4304 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 31 ms 4140 KB Output is correct
16 Correct 27 ms 4164 KB Output is correct
17 Correct 18 ms 4924 KB Output is correct
18 Correct 18 ms 4332 KB Output is correct
19 Correct 26 ms 4344 KB Output is correct
20 Correct 28 ms 4188 KB Output is correct
21 Correct 19 ms 4216 KB Output is correct
22 Correct 22 ms 4264 KB Output is correct
23 Correct 25 ms 4172 KB Output is correct
24 Correct 26 ms 4408 KB Output is correct
25 Correct 21 ms 4400 KB Output is correct
26 Correct 21 ms 4304 KB Output is correct
27 Incorrect 27 ms 4016 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 31 ms 4140 KB Output is correct
16 Correct 27 ms 4164 KB Output is correct
17 Correct 18 ms 4924 KB Output is correct
18 Correct 18 ms 4332 KB Output is correct
19 Correct 26 ms 4344 KB Output is correct
20 Correct 28 ms 4188 KB Output is correct
21 Correct 19 ms 4216 KB Output is correct
22 Correct 22 ms 4264 KB Output is correct
23 Correct 25 ms 4172 KB Output is correct
24 Correct 26 ms 4408 KB Output is correct
25 Correct 21 ms 4400 KB Output is correct
26 Correct 21 ms 4304 KB Output is correct
27 Incorrect 27 ms 4016 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 2 ms 856 KB Output is correct
8 Correct 4 ms 1272 KB Output is correct
9 Correct 9 ms 1872 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 6 ms 1368 KB Output is correct
12 Correct 9 ms 1980 KB Output is correct
13 Correct 7 ms 2136 KB Output is correct
14 Correct 7 ms 1880 KB Output is correct
15 Correct 31 ms 4140 KB Output is correct
16 Correct 27 ms 4164 KB Output is correct
17 Correct 18 ms 4924 KB Output is correct
18 Correct 18 ms 4332 KB Output is correct
19 Correct 26 ms 4344 KB Output is correct
20 Correct 28 ms 4188 KB Output is correct
21 Correct 19 ms 4216 KB Output is correct
22 Correct 22 ms 4264 KB Output is correct
23 Correct 25 ms 4172 KB Output is correct
24 Correct 26 ms 4408 KB Output is correct
25 Correct 21 ms 4400 KB Output is correct
26 Correct 21 ms 4304 KB Output is correct
27 Incorrect 27 ms 4016 KB Wrong Answer [2]
28 Halted 0 ms 0 KB -