oj.uz

Submission #75058

# Submission time Handle Problem Language Result Execution time Memory
75058 2018-09-08T08:06:54 Z dacin21 Mechanical Doll (IOI18_doll) C++14
100 / 100
 143 ms 12400 KB 
#include "doll.h"
#include <bits/stdc++.h>
using namespace std;

int bit_mirror(int A, int digits){
    int ret = 0;
    while(digits--){
        ret = ret<<1 | (A&1);
        A>>=1;
    }
    return ret;
}

void create_circuit(int M, vector<int> A){
    const int lgn = __lg(2*A.size()-1);
    const int N = 1<<lgn;
    assert(N/2 < A.size() && A.size() <= N);
    // remove surplus subtrees
    vector<char> dead(2*N, 0);
    int m = N - A.size();
    for(int i=lgn, j=1;i>=0;--i,j=2*j){
        if((m>>i)&1){
            dead[j] = 1;
            ++j;
        }
    }
    for(int i=1;i<N;++i){
        if(dead[i]){
            dead[2*i] = dead[2*i+1] = 1;
        }
    }
    // assign leaves
    A.push_back(0);
    vector<int> leaves(N, -1);
    for(int i=0, k=0;i<N;++i){
        int j = bit_mirror(i, lgn);
        if(!dead[N+j]){
            leaves[j] = A[++k];
        }
        //cerr << i << " -> " << j << "\n";
    }
    // compress
    vector<int> id(2*N, -1);
    for(int i=2, j=-2;i<N;++i){
        if(!dead[i]){
            id[i] = j--;
        }
    }
    for(int i=0;i<N;++i){
        id[N+i] = leaves[i];
    }

    vector<int> C(M+1, 0);
    C[0] = A[0];
    for(int i=1;i<=M;++i){
        C[i] = -1;
    }
    const int K = -*min_element(id.begin(), id.end());
    vector<int> X(K), Y(K);
    for(int i=0;i<N;++i){
        if(!dead[i]){
            X[-id[i]-1] = id[2*i];
            Y[-id[i]-1] = id[2*i+1];
        }
    }
    answer(C, X, Y);

}

Compilation message

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from doll.cpp:2:
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:17:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     assert(N/2 < A.size() && A.size() <= N);
      |            ~~~~^~~~~~~~~~
doll.cpp:17:39: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'const int' [-Wsign-compare]
   17 |     assert(N/2 < A.size() && A.size() <= N);
      |                              ~~~~~~~~~^~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 58 ms 4776 KB Output is correct
3 Correct 46 ms 5320 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 18 ms 1356 KB Output is correct
6 Correct 64 ms 6836 KB Output is correct
7 Correct 1 ms 256 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 58 ms 4776 KB Output is correct
3 Correct 46 ms 5320 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 18 ms 1356 KB Output is correct
6 Correct 64 ms 6836 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 67 ms 7560 KB Output is correct
9 Correct 89 ms 9768 KB Output is correct
10 Correct 103 ms 12400 KB Output is correct
11 Correct 1 ms 220 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 2 ms 204 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 58 ms 4776 KB Output is correct
3 Correct 46 ms 5320 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 18 ms 1356 KB Output is correct
6 Correct 64 ms 6836 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 67 ms 7560 KB Output is correct
9 Correct 89 ms 9768 KB Output is correct
10 Correct 103 ms 12400 KB Output is correct
11 Correct 1 ms 220 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 2 ms 204 KB Output is correct
14 Correct 116 ms 12012 KB Output is correct
15 Correct 60 ms 9024 KB Output is correct
16 Correct 143 ms 11900 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 2 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 130 ms 12212 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 2 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 244 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 63 ms 6832 KB Output is correct
3 Correct 78 ms 8600 KB Output is correct
4 Correct 87 ms 11232 KB Output is correct

Subtask #6
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 63 ms 6832 KB Output is correct
3 Correct 78 ms 8600 KB Output is correct
4 Correct 87 ms 11232 KB Output is correct
5 Correct 101 ms 11712 KB Output is correct
6 Correct 112 ms 11512 KB Output is correct
7 Correct 135 ms 11644 KB Output is correct
8 Correct 134 ms 11440 KB Output is correct
9 Correct 86 ms 8572 KB Output is correct
10 Correct 93 ms 11384 KB Output is correct
11 Correct 87 ms 11168 KB Output is correct
12 Correct 87 ms 8628 KB Output is correct
13 Correct 66 ms 6888 KB Output is correct
14 Correct 67 ms 8892 KB Output is correct
15 Correct 84 ms 8852 KB Output is correct
16 Correct 4 ms 588 KB Output is correct
17 Correct 52 ms 6832 KB Output is correct
18 Correct 50 ms 6820 KB Output is correct
19 Correct 74 ms 8640 KB Output is correct
20 Correct 122 ms 11252 KB Output is correct
21 Correct 86 ms 11160 KB Output is correct
22 Correct 83 ms 11148 KB Output is correct