oj.uz

Submission #944704

# Submission time Handle Problem Language Result Execution time Memory
944704 2024-03-13T04:05:33 Z yeediot Minerals (JOI19_minerals) C++14
70 / 100
 27 ms 2988 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+5));
        }
        else{
            mm=min(r-1,max(l,mm-5));
        }
        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 0 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 2 ms 600 KB Output is correct
4 Correct 5 ms 856 KB Output is correct
5 Correct 9 ms 1368 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 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 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 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 KB Output is correct
15 Correct 26 ms 2712 KB Output is correct
16 Correct 27 ms 2640 KB Output is correct
17 Correct 19 ms 2988 KB Output is correct
18 Correct 21 ms 2956 KB Output is correct

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 KB Output is correct
15 Correct 26 ms 2712 KB Output is correct
16 Correct 27 ms 2640 KB Output is correct
17 Correct 19 ms 2988 KB Output is correct
18 Correct 21 ms 2956 KB Output is correct
19 Incorrect 26 ms 2756 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 KB Output is correct
15 Correct 26 ms 2712 KB Output is correct
16 Correct 27 ms 2640 KB Output is correct
17 Correct 19 ms 2988 KB Output is correct
18 Correct 21 ms 2956 KB Output is correct
19 Incorrect 26 ms 2756 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 KB Output is correct
15 Correct 26 ms 2712 KB Output is correct
16 Correct 27 ms 2640 KB Output is correct
17 Correct 19 ms 2988 KB Output is correct
18 Correct 21 ms 2956 KB Output is correct
19 Incorrect 26 ms 2756 KB Wrong Answer [2]
20 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 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 KB Output is correct
15 Correct 26 ms 2712 KB Output is correct
16 Correct 27 ms 2640 KB Output is correct
17 Correct 19 ms 2988 KB Output is correct
18 Correct 21 ms 2956 KB Output is correct
19 Incorrect 26 ms 2756 KB Wrong Answer [2]
20 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 0 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 2 ms 600 KB Output is correct
8 Correct 5 ms 856 KB Output is correct
9 Correct 9 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 1112 KB Output is correct
12 Correct 11 ms 1324 KB Output is correct
13 Correct 8 ms 1368 KB Output is correct
14 Correct 9 ms 1368 KB Output is correct
15 Correct 26 ms 2712 KB Output is correct
16 Correct 27 ms 2640 KB Output is correct
17 Correct 19 ms 2988 KB Output is correct
18 Correct 21 ms 2956 KB Output is correct
19 Incorrect 26 ms 2756 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -