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Submission #970462

# Submission time Handle Problem Language Result Execution time Memory
970462 2024-04-26T14:55:33 Z jamesbamber Mechanical Doll (IOI18_doll) C++17
100 / 100
 101 ms 10124 KB 
#include "doll.h"
#include <bits/stdc++.h>
using namespace std;

void create_circuit(int M, vector<int> A) {
    int N = A.size();
    int source = -1;
    vector<int> C(M + 1);
    for(int &x: C) x = source;


    int sz = 0;
    while((1<<sz) <= N) sz++;
    vector<int> X(N+sz), Y(N+sz);
    auto buildtree = [&](int len, int shift){
        vector<pair<int,int>> res(len-1);

        for(int i=0; i<len/2-1; i++) res[i] = {shift - (2*i+1), shift - (2*i+2)};
        for(int i=len/2-1; i<len-1; i++) res[i] = {M+1, M+1};

        return res;
    };

    int curr = -sz-1;
    for(int i=0; i<sz; i++){
        Y[i] = -i-2;
        if((N & (1 << (sz-i-1))) == 0) X[i] = source;
        else{
            if(sz-i-1 == 0){
                X[i] = M+1;
            }
            else{
                X[i] = curr;
                auto tree = buildtree((1<<(sz-i-1)), curr);
                for(auto [a, b]: tree) X[-curr-1] = a, Y[-curr-1] = b, curr--;
            }
        }
    }
    Y[sz-1] = 0;

    vector<int> state(N+sz);
    function<void(int, int)> findnext = [&](int v, int id){
        int u = -v-1;
        assert(v < 0); 
        int next = state[u]?Y[u]:X[u];
        if(next == M+1){
            if(state[u]) Y[u] = id;
            else X[u] = id;
            state[u] ^= 1;
            return;
        }
        state[u] ^= 1;
        findnext(next, id);
    };

    for(int i=0; i<N; i++){
        findnext(source, A[i]);
    }

    X.resize(-curr-1);
    Y.resize(-curr-1);
    //assert(accumulate(state.begin(), state.end(), 0) == 0);

    answer(C, X, Y);
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Correct 34 ms 4364 KB Output is correct
3 Correct 32 ms 3736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 1372 KB Output is correct
6 Correct 49 ms 5788 KB Output is correct
7 Correct 1 ms 348 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Correct 34 ms 4364 KB Output is correct
3 Correct 32 ms 3736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 1372 KB Output is correct
6 Correct 49 ms 5788 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 62 ms 6732 KB Output is correct
9 Correct 68 ms 7096 KB Output is correct
10 Correct 95 ms 10124 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Correct 34 ms 4364 KB Output is correct
3 Correct 32 ms 3736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 7 ms 1372 KB Output is correct
6 Correct 49 ms 5788 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 62 ms 6732 KB Output is correct
9 Correct 68 ms 7096 KB Output is correct
10 Correct 95 ms 10124 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 94 ms 9876 KB Output is correct
15 Correct 61 ms 6476 KB Output is correct
16 Correct 101 ms 9596 KB Output is correct
17 Correct 0 ms 356 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 95 ms 10104 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 440 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 58 ms 5056 KB Output is correct
3 Correct 57 ms 4808 KB Output is correct
4 Correct 86 ms 7240 KB Output is correct

Subtask #6
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 58 ms 5056 KB Output is correct
3 Correct 57 ms 4808 KB Output is correct
4 Correct 86 ms 7240 KB Output is correct
5 Correct 90 ms 8132 KB Output is correct
6 Correct 91 ms 7964 KB Output is correct
7 Correct 92 ms 8072 KB Output is correct
8 Correct 89 ms 7700 KB Output is correct
9 Correct 57 ms 4808 KB Output is correct
10 Correct 96 ms 7728 KB Output is correct
11 Correct 89 ms 7244 KB Output is correct
12 Correct 57 ms 4936 KB Output is correct
13 Correct 59 ms 5200 KB Output is correct
14 Correct 59 ms 5372 KB Output is correct
15 Correct 59 ms 5440 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 55 ms 4812 KB Output is correct
18 Correct 62 ms 5060 KB Output is correct
19 Correct 58 ms 5048 KB Output is correct
20 Correct 90 ms 7436 KB Output is correct
21 Correct 98 ms 7416 KB Output is correct
22 Correct 87 ms 7240 KB Output is correct