Submission #133462

#	Time	Username	Problem	Language	Result	Execution time	Memory
133462		duality	Airline Route Map (JOI18_airline)	C++11	100 / 100	1007 ms	31272 KiB

Alice

#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;
#include "Alicelib.h"

static vpii edges;
void Alice(int N,int M,int *A,int *B) {
    int i,j;
    for (i = 0; i < M; i++) edges.pb(mp(A[i],B[i]));
    for (i = 0; i < N+11; i++) {
        if (i != N) edges.pb(mp(N,i));
    }
    for (i = 0; i < 10; i++) edges.pb(mp(N+i+1,N+11));
    for (i = 1; i < 10; i++) edges.pb(mp(N+i,N+i+1));
    edges.pb(mp(N+2,N+4));
    for (i = 0; i < N; i++) {
        for (j = 0; j < 10; j++) {
            if ((i+7) & (1 << j)) edges.pb(mp(i,N+j+1));
        }
    }
    InitG(N+12,edges.size());
    for (i = 0; i < edges.size(); i++) MakeG(i,edges[i].first,edges[i].second);
}

Bob

#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vpii;
#include "Boblib.h"

static vpii edges;
bitset<1012> adjMat[1012];
vi adjList[1012];
int c[1012],num[1012];
void Bob(int V,int U,int *C,int *D) {
    int i,j;
    int x,y;
    int N = V-12;
    for (i = 0; i < U; i++) adjMat[C[i]][D[i]] = adjMat[D[i]][C[i]] = 1;
    for (i = 0; i < V; i++) c[i] = adjMat[i].count();
    for (i = 0; i < V; i++) {
        for (j = 0; j < V; j++) {
            if ((c[i] == V-2) && !adjMat[i][j] && (c[j] == 10)) {
                x = i,y = j;
                break;
            }
        }
        if (j < V) break;
    }
    vi v,v2;
    for (i = 0; i < V; i++) {
        if (adjMat[y][i]) v.pb(i);
    }
    for (i = 0; i < v.size(); i++) {
        for (j = 0; j < v.size(); j++) {
            if (adjMat[v[i]][v[j]]) adjList[v[i]].pb(v[j]);
        }
    }
    for (i = 0; i < v.size(); i++) {
        if ((adjList[v[i]].size() == 1) && (adjList[adjList[v[i]][0]].size() == 3)) break;
    }
    int u = v[i];
    fill(num,num+V,-1);
    num[u] = 0;
    for (i = 1; i < 10; i++) {
        if (i == 1) u = adjList[u][0];
        else if (i == 2) {
            if (adjList[adjList[u][0]].size() == 2) u = adjList[u][0];
            else if (adjList[adjList[u][1]].size() == 2) u = adjList[u][1];
            else u = adjList[u][2];
        }
        else {
            for (j = 0; j < adjList[u].size(); j++) {
                if (num[adjList[u][j]] == -1) {
                    u = adjList[u][j];
                    break;
                }
            }
        }
        num[u] = i;
    }
    for (i = 0; i < V; i++) {
        if (adjMat[x][i] && !adjMat[y][i]) v2.pb(i);
    }
    for (i = 0; i < v2.size(); i++) {
        int n = 0;
        for (j = 0; j < v.size(); j++) {
            if (adjMat[v2[i]][v[j]]) n |= (1 << num[v[j]]);
        }
        num[v2[i]] = n-7;
    }
    for (i = 0; i < v2.size(); i++) {
        for (j = i+1; j < v2.size(); j++) {
            if (adjMat[v2[i]][v2[j]]) edges.pb(mp(num[v2[i]],num[v2[j]]));
        }
    }
    InitMap(N,edges.size());
    for (i = 0; i < edges.size(); i++) MakeMap(edges[i].first,edges[i].second);
}

Compilation message (stderr)

Alice.cpp: In function 'void Alice(int, int, int*, int*)':
Alice.cpp:27:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < edges.size(); i++) MakeG(i,edges[i].first,edges[i].second);
                 ~~^~~~~~~~~~~~~~

Bob.cpp: In function 'void Bob(int, int, int*, int*)':
Bob.cpp:34:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < v.size(); i++) {
                 ~~^~~~~~~~~~
Bob.cpp:35:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (j = 0; j < v.size(); j++) {
                     ~~^~~~~~~~~~
Bob.cpp:39:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < v.size(); i++) {
                 ~~^~~~~~~~~~
Bob.cpp:53:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (j = 0; j < adjList[u].size(); j++) {
                         ~~^~~~~~~~~~~~~~~~~~~
Bob.cpp:65:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < v2.size(); i++) {
                 ~~^~~~~~~~~~~
Bob.cpp:67:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (j = 0; j < v.size(); j++) {
                     ~~^~~~~~~~~~
Bob.cpp:72:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < v2.size(); i++) {
                 ~~^~~~~~~~~~~
Bob.cpp:73:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (j = i+1; j < v2.size(); j++) {
                       ~~^~~~~~~~~~~
Bob.cpp:78:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < edges.size(); i++) MakeMap(edges[i].first,edges[i].second);
                 ~~^~~~~~~~~~~~~~
Bob.cpp:17:11: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
     int x,y;
           ^
Bob.cpp:17:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
     int x,y;
         ^

• Subtask 1: 22 / 22
• Subtask 2: 15 / 15
• Subtask 3: 63 / 63