oj.uz

Submission #997571

# Submission time Handle Problem Language Result Execution time Memory
997571 2024-06-12T14:05:23 Z TimDee Minerals (JOI19_minerals) C++17
75 / 100
 190 ms 11492 KB 
#include "minerals.h"
#include <bits/stdc++.h>
using namespace std;
#define forn(i,n) for(int i=0; i<(n); ++i)
#define pb push_back
#define pi pair<int,int>
#define f first
#define s second 

int query(int x) {
    return Query(x+1);
}
void Solve(int n) {

    vector<int> in(2*n), c(2*n);
    vector<int> f,s;

    int last=0;
    forn(i,2*n) {
        int z = query(i);
        if (z > last) f.pb(i);
        else s.pb(i); 
        in[i]=1;
        last = z;
    }

    forn(i,n) c[f[i]]=i;

    vector<pi> v(n);
    forn(i,n) v[i]={0,n-1};

    multiset<int> st;
    forn(i,n) st.insert(n/2);

    vector<vector<int>> ok(n);
    forn(i,n) ok[n/2].pb(i);

    set<int> alive;
    forn(i,n) alive.insert(i);

    vector<vector<int>> other(n);

    int dir = -1;
    int pos=n-1;
    while (st.size()) {

        if (dir == 1) {

            auto it = st.lower_bound(pos);
            if (it==st.end()) {
                dir *= -1;
                continue;
            }

            for(auto&x:ok[pos]) {
                st.erase(st.find(pos));
                int l=v[x].f, r=v[x].s;
                if (l==r) continue;
                int m=(l+r+1)>>1;
                int q = query(s[x]);
                int z = -1;
                if (r-l==1) {
                    z = l;
                }
                if (in[s[x]]) {
                    if (q < last) {
                        l = m;
                    } else {
                        r = m-1;
                    }
                } else {
                    if (q > last) {
                        l = m;
                    } else {
                        r = m-1;
                    }
                }
                in[s[x]]^=1;
                last = q;
                v[x] = {l,r};
                m = (l+r+1)>>1;
                if (z!=-1) {
                    int a=other[z][0],b=other[z][1];
                    if (x==a) {
                        if (r==z) v[b]={z+1,z+1};
                        else v[b]={z,z};
                    } else {
                        if (r==z) v[a]={z+1,z+1};
                        else v[a]={z,z};
                    }
                    alive.erase(z);
                    alive.erase(z+1);
                }
                if (l!=r) {
                    ok[m].pb(x);
                    st.insert(m);
                }
                if (r-l==1) {
                    other[l].pb(x);
                }
            }
            ok[pos].clear();

            it = st.lower_bound(pos);
            if (it==st.end()) {
                dir*=-1;
                continue;
            }

            last = query(f[pos]);
            auto it2 = alive.upper_bound(pos);
            pos = *it2;

        } else {

            auto it = st.lower_bound(pos);
            if (it == st.begin() && (*it) > pos) {
                dir *= -1;
                continue;
            }

            last = query(f[pos]);

            for(auto&x:ok[pos]) {
                st.erase(st.find(pos));
                int l=v[x].f, r=v[x].s;
                if (l==r) continue;
                int m=(l+r+1)>>1;
                int q = query(s[x]);
                int z = -1;
                if (r-l==1) {
                    z = l;
                }
                if (in[s[x]]) {
                    if (q < last) {
                        l = m;
                    } else {
                        r = m-1;
                    }
                } else {
                    if (q > last) {
                        l = m;
                    } else {
                        r = m-1;
                    }
                }
                in[s[x]]^=1;
                last = q;
                v[x] = {l,r};
                m = (l+r+1)>>1;
                if (z!=-1) {
                    int a=other[z][0],b=other[z][1];
                    if (x==a) {
                        if (r==z) v[b]={z+1,z+1};
                        else v[b]={z,z};
                    } else {
                        if (r==z) v[a]={z+1,z+1};
                        else v[a]={z,z};
                    }
                    alive.erase(z);
                    alive.erase(z+1);
                }
                if (l!=r) {
                    ok[m].pb(x);
                    st.insert(m);
                }
                if (r-l==1) {
                    other[l].pb(x);
                }
            }
            ok[pos].clear();

            it = st.lower_bound(pos);
            if (it == st.begin()) {
                dir *= -1;
                continue;
            }

            auto it2 = alive.lower_bound(pos);
            --it2;
            pos = *it2;
        }
    }

    forn(i,n) Answer(s[i]+1,f[v[i].f]+1);

}

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 2 ms 600 KB Output is correct
2 Correct 5 ms 884 KB Output is correct
3 Correct 11 ms 1368 KB Output is correct
4 Correct 25 ms 2388 KB Output is correct
5 Correct 54 ms 4176 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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 KB Output is correct
15 Correct 190 ms 11088 KB Output is correct
16 Correct 156 ms 11092 KB Output is correct
17 Correct 149 ms 10824 KB Output is correct
18 Correct 148 ms 10932 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 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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 KB Output is correct
15 Correct 190 ms 11088 KB Output is correct
16 Correct 156 ms 11092 KB Output is correct
17 Correct 149 ms 10824 KB Output is correct
18 Correct 148 ms 10932 KB Output is correct
19 Correct 163 ms 11492 KB Output is correct
20 Correct 188 ms 11344 KB Output is correct
21 Correct 153 ms 11216 KB Output is correct
22 Correct 146 ms 10952 KB Output is correct

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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 KB Output is correct
15 Correct 190 ms 11088 KB Output is correct
16 Correct 156 ms 11092 KB Output is correct
17 Correct 149 ms 10824 KB Output is correct
18 Correct 148 ms 10932 KB Output is correct
19 Correct 163 ms 11492 KB Output is correct
20 Correct 188 ms 11344 KB Output is correct
21 Correct 153 ms 11216 KB Output is correct
22 Correct 146 ms 10952 KB Output is correct
23 Incorrect 158 ms 11088 KB Wrong Answer [2]
24 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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 KB Output is correct
15 Correct 190 ms 11088 KB Output is correct
16 Correct 156 ms 11092 KB Output is correct
17 Correct 149 ms 10824 KB Output is correct
18 Correct 148 ms 10932 KB Output is correct
19 Correct 163 ms 11492 KB Output is correct
20 Correct 188 ms 11344 KB Output is correct
21 Correct 153 ms 11216 KB Output is correct
22 Correct 146 ms 10952 KB Output is correct
23 Incorrect 158 ms 11088 KB Wrong Answer [2]
24 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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 KB Output is correct
15 Correct 190 ms 11088 KB Output is correct
16 Correct 156 ms 11092 KB Output is correct
17 Correct 149 ms 10824 KB Output is correct
18 Correct 148 ms 10932 KB Output is correct
19 Correct 163 ms 11492 KB Output is correct
20 Correct 188 ms 11344 KB Output is correct
21 Correct 153 ms 11216 KB Output is correct
22 Correct 146 ms 10952 KB Output is correct
23 Incorrect 158 ms 11088 KB Wrong Answer [2]
24 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 2 ms 600 KB Output is correct
6 Correct 5 ms 884 KB Output is correct
7 Correct 11 ms 1368 KB Output is correct
8 Correct 25 ms 2388 KB Output is correct
9 Correct 54 ms 4176 KB Output is correct
10 Correct 2 ms 600 KB Output is correct
11 Correct 33 ms 3152 KB Output is correct
12 Correct 52 ms 4176 KB Output is correct
13 Correct 45 ms 4200 KB Output is correct
14 Correct 48 ms 4176 KB Output is correct
15 Correct 190 ms 11088 KB Output is correct
16 Correct 156 ms 11092 KB Output is correct
17 Correct 149 ms 10824 KB Output is correct
18 Correct 148 ms 10932 KB Output is correct
19 Correct 163 ms 11492 KB Output is correct
20 Correct 188 ms 11344 KB Output is correct
21 Correct 153 ms 11216 KB Output is correct
22 Correct 146 ms 10952 KB Output is correct
23 Incorrect 158 ms 11088 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -