Submission #266518

#	Time	Username	Problem	Language	Result	Execution time	Memory
266518		dolphingarlic	Two Transportations (JOI19_transportations)	C++14	0 / 100	559 ms	1536 KiB

Azer

#include "Azer.h"

#include <bits/stdc++.h>
using namespace std;

namespace {
int N, stage = 0, cnt;
vector<pair<int, int>> graph[2000];
vector<int> known, shortest;
bool visited[2000];
pair<int, int> candidate = {0, 0};

void reset() {
    known.push_back(candidate.second);
    visited[candidate.second] = true;
    shortest[candidate.second] = candidate.first;

    if (known.size() == N) return;
    candidate = {10000000, -1};
    for (int i : known) {
        for (pair<int, int> j : graph[i]) if (!visited[j.first]) {
            candidate = min(candidate, {shortest[i] + j.second, j.first});
        }
    }
    for (int i = 0; i < 20; i++) SendA((candidate.first & (1 << i)) >> i);
    cnt = stage = 0;
}
}  // namespace

void InitA(int N, int A, vector<int> U, vector<int> V, vector<int> C) {
    ::N = N;
    shortest.resize(N);
    for (int i = 0; i < A; i++) {
        graph[U[i]].push_back({V[i], C[i]});
        graph[V[i]].push_back({U[i], C[i]});
    }
    reset();
}

void ReceiveA(bool x) {
    if (stage == 0) {
        if (x) {
            stage++;
            candidate = {0, 0};
        } else {
            for (int i = 0; i < 11; i++) SendA((candidate.first & (1 << i)) >> i);
            reset();
        }
    } else if (stage == 1) {
        candidate.first |= x << cnt++;
        if (cnt == 20) {
            stage++;
            cnt = 0;
        }
    } else {
        candidate.second |= x << cnt++;
        if (cnt == 11) reset();
    }
}

vector<int> Answer() {
    return shortest;
}

Baijan

#include "Baijan.h"

#include <bits/stdc++.h>
using namespace std;

namespace {
int N, stage = 0, cnt, a_shortest;
vector<pair<int, int>> graph[2000];
vector<int> known, shortest;
bool visited[2000];
pair<int, int> candidate = {0, 0};

void reset() {
    known.push_back(candidate.second);
    visited[candidate.second] = true;
    shortest[candidate.second] = candidate.first;

    candidate = {10000000, -1};
    for (int i : known) {
        for (pair<int, int> j : graph[i]) if (!visited[j.first]) {
            candidate = min(candidate, {shortest[i] + j.second, j.first});
        }
    }
    cnt = stage = a_shortest = 0;
}
}  // namespace

void InitB(int N, int B, vector<int> S, vector<int> T, vector<int> D) {
    ::N = N;
    shortest.resize(N);
    for (int i = 0; i < B; i++) {
        graph[S[i]].push_back({T[i], D[i]});
        graph[T[i]].push_back({S[i], D[i]});
    }
    reset();
}

void ReceiveB(bool y) {
    if (stage == 0) {
        a_shortest |= y << cnt++;
        if (cnt == 20) {
            if (a_shortest > candidate.first) {
                SendB(1);
                for (int i = 0; i < 20; i++) SendB((candidate.first & (1 << i)) >> i);
                for (int i = 0; i < 11; i++) SendB((candidate.second & (1 << i)) >> i);
                reset();
            } else {
                SendB(0);
                cnt = 0;
                candidate = {a_shortest, 0};
                stage++;
            }
        }
    } else if (stage == 1) {
        candidate.second |= y << cnt++;
        if (cnt == 11) reset();
    }
}

Compilation message (stderr)

Azer.cpp: In function 'void {anonymous}::reset()':
Azer.cpp:18:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   18 |     if (known.size() == N) return;
      |         ~~~~~~~~~~~~~^~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 8
• Subtask 3: 0 / 8
• Subtask 4: 0 / 38
• Subtask 5: 0 / 14
• Subtask 6: 0 / 10
• Subtask 7: 0 / 16