Submission #470765

#	Time	Username	Problem	Language	Result	Execution time	Memory
470765		NhatMinh0208	Airline Route Map (JOI18_airline)	C++17	100 / 100	865 ms	33368 KiB

Alice

#ifndef CPL_TEMPLATE
#define CPL_TEMPLATE
/*
	Normie's Template v2.5
	Changes:
    Added warning against using pragmas on USACO.
*/
// Standard library in one include.
#include <bits/stdc++.h>
using namespace std;
 
// ordered_set library.
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set(el) tree<el,null_type,less<el>,rb_tree_tag,tree_order_statistics_node_update>
 
// AtCoder library. (Comment out these two lines if you're not submitting in AtCoder.) (Or if you want to use it in other judges, run expander.py first.)
//#include <atcoder/all>
//using namespace atcoder;

//Pragmas (Comment out these three lines if you're submitting in szkopul or USACO.)
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast,unroll-loops,tree-vectorize")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
 
//File I/O.
#define FILE_IN "cseq.inp"
#define FILE_OUT "cseq.out"
#define ofile freopen(FILE_IN,"r",stdin);freopen(FILE_OUT,"w",stdout)
 
//Fast I/O.
#define fio ios::sync_with_stdio(0);cin.tie(0)
#define nfio cin.tie(0)
#define endl "\n"
 
//Order checking.
#define ord(a,b,c) ((a>=b)and(b>=c))
 
//min/max redefines, so i dont have to resolve annoying compile errors.
#define min(a,b) (((a)<(b))?(a):(b))
#define max(a,b) (((a)>(b))?(a):(b))

// Fast min/max assigns to use with AVX.
// Requires g++ 9.2.0.
template<typename T>
__attribute__((always_inline)) void chkmin(T& a, const T& b) {
    a=(a<b)?a:b;
}

template<typename T>
__attribute__((always_inline)) void chkmax(T& a, const T& b) {
    a=(a>b)?a:b;
}
 
//Constants.
#define MOD (ll(998244353))
#define MAX 300001
#define mag 320
const long double PI=3.14159265358979;
 
//Pairs and 3-pairs.
#define p1 first
#define p2 second.first
#define p3 second.second
#define fi first
#define se second
#define pii(element_type) pair<element_type,element_type>
#define piii(element_type) pair<element_type,pii(element_type)>
 
//Quick power of 2.
#define pow2(x) (ll(1)<<x)
 
//Short for-loops.
#define ff(i,__,___) for(int i=__;i<=___;i++)
#define rr(i,__,___) for(int i=__;i>=___;i--)
 
//Typedefs.
#define bi BigInt
typedef long long ll;
typedef long double ld;
typedef short sh;

// Binpow and stuff
ll BOW(ll a, ll x, ll p)
{
	if (!x) return 1;
	ll res=BOW(a,x/2,p);
	res*=res;
	res%=p;
	if (x%2) res*=a;
	return res%p;
}
ll INV(ll a, ll p)
{
	return BOW(a,p-2,p);
}
//---------END-------//

#endif

#include "Alicelib.h"
#include <cassert>
#include <cstdio>

void Alice( int N, int M, int A[], int B[] ){
    vector<pii(int)> lmao;
    for (int i=0;i<M;i++) {
        lmao.emplace_back(A[i],B[i]);
    }
    for (int i=0;i<N;i++) for (int j=0;j<10;j++) {
        if (i&(1<<j)) lmao.push_back({i,N+j});
    }
    for (int i=0;i<10;i++) {
        lmao.push_back({N+i,N+10});
    }
    for (int i=1;i<10;i++) {
        lmao.push_back({N+i-1,N+i});
    }
    for (int i=0;i<N+10;i++) {
        lmao.push_back({i,N+11});
    }
    InitG(N+12,lmao.size());
    int u=-1;
    for (auto g : lmao) {
        u++;
        // cout<<g.fi<<' '<<g.se<<endl;
        MakeG(u, g.fi, g.se);
    }
    // cout<<endl<<endl;
}

Bob

#ifndef CPL_TEMPLATE
#define CPL_TEMPLATE
/*
	Normie's Template v2.5
	Changes:
    Added warning against using pragmas on USACO.
*/
// Standard library in one include.
#include <bits/stdc++.h>
using namespace std;
 
// ordered_set library.
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set(el) tree<el,null_type,less<el>,rb_tree_tag,tree_order_statistics_node_update>
 
// AtCoder library. (Comment out these two lines if you're not submitting in AtCoder.) (Or if you want to use it in other judges, run expander.py first.)
//#include <atcoder/all>
//using namespace atcoder;

//Pragmas (Comment out these three lines if you're submitting in szkopul or USACO.)
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast,unroll-loops,tree-vectorize")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
 
//File I/O.
#define FILE_IN "cseq.inp"
#define FILE_OUT "cseq.out"
#define ofile freopen(FILE_IN,"r",stdin);freopen(FILE_OUT,"w",stdout)
 
//Fast I/O.
#define fio ios::sync_with_stdio(0);cin.tie(0)
#define nfio cin.tie(0)
#define endl "\n"
 
//Order checking.
#define ord(a,b,c) ((a>=b)and(b>=c))
 
//min/max redefines, so i dont have to resolve annoying compile errors.
#define min(a,b) (((a)<(b))?(a):(b))
#define max(a,b) (((a)>(b))?(a):(b))

// Fast min/max assigns to use with AVX.
// Requires g++ 9.2.0.
template<typename T>
__attribute__((always_inline)) void chkmin(T& a, const T& b) {
    a=(a<b)?a:b;
}

template<typename T>
__attribute__((always_inline)) void chkmax(T& a, const T& b) {
    a=(a>b)?a:b;
}
 
//Constants.
#define MOD (ll(998244353))
#define MAX 300001
#define mag 320
const long double PI=3.14159265358979;
 
//Pairs and 3-pairs.
#define p1 first
#define p2 second.first
#define p3 second.second
#define fi first
#define se second
#define pii(element_type) pair<element_type,element_type>
#define piii(element_type) pair<element_type,pii(element_type)>
 
//Quick power of 2.
#define pow2(x) (ll(1)<<x)
 
//Short for-loops.
#define ff(i,__,___) for(int i=__;i<=___;i++)
#define rr(i,__,___) for(int i=__;i>=___;i--)
 
//Typedefs.
#define bi BigInt
typedef long long ll;
typedef long double ld;
typedef short sh;

//---------END-------//

#endif


#include "Boblib.h"
#include <cassert>
#include <cstdio>


vector<int> gt[1012];
vector<int> ancs;
int usedd[1012];

void dfs(int x, int p) {
    ancs.push_back(x);
    for (auto g : gt[x]) if (usedd[g] && g-p) dfs(g,x);
}

void Bob( int V, int U, int C[], int D[] ){
    int adj[1012][1012];
    int arr[1012];
    int pos[1012];
    int N=V-12;
    if (N==1) {
        InitMap(1,0);
        return;
    }

    
    for (int i=0;i<V;i++) {
        arr[i]=pos[i]=usedd[i]=0;
    }
    for (int i=0;i<V;i++) for (int j=0;j<V;j++) {
        adj[i][j]=0;
    }

    for (int i=0;i<U;i++) {
         // cout<<C[i]<<' '<<D[i]<<endl;
        adj[C[i]][D[i]]=1;
        adj[D[i]][C[i]]=1;
        gt[C[i]].push_back(D[i]);
        gt[D[i]].push_back(C[i]);
    }
    int i,j,k;
    for (i=0;i<V;i++) if (gt[i].size() == V-2) break;
    arr[N+11]=i;
    pos[i]=N+11;
    for (i=0;i<V;i++) if (i-arr[N+11] && adj[i][arr[N+11]]==0) break;
    arr[N+10]=i;
    pos[i]=N+10;
    ancs=gt[arr[N+10]];
    for (auto g : ancs) {
        usedd[g]=1;
        // cout<<g<<' ';
    }
    // cout<<endl;
    for (auto g : ancs) {
        i=0;
        for (auto gg : gt[g]) if (usedd[gg]) i++;
        if (i==1) {
            j=g;
            break;
        } 
    }
    ancs.clear();
    dfs(j,-1);

    if (gt[ancs[0]].size()<gt[ancs[9]].size()) reverse(ancs.begin(),ancs.end());
    for (i=0;i<10;i++) {
        arr[N+i]=ancs[i];
        pos[ancs[i]]=N+i;
    }
    for (i=0;i<V;i++) if (!pos[i]) {
        int u=0,v;
        for (auto g : gt[i])  {
            v=pos[g];
            if (v>=N && v<N+10) {
                u+=(1<<(v-N));
            }
        }
        pos[i]=u;
        arr[u]=i;
    }
    // for (i=0;i<V;i++) {cout<<arr[i]<<' ';} // cout<<endl;
    // for (i=0;i<V;i++) {cout<<pos[i]<<' ';} // cout<<endl;
    vector<pii(int)> lmao;
    for (i=0;i<U;i++) {
        int u,v;
        u=pos[C[i]];
        v=pos[D[i]];
        if (u>=0 && v>=0 && u<N && v<N) {
            lmao.push_back({u,v});
        }
    }
    InitMap(N,lmao.size());
    for (auto g : lmao) MakeMap(g.fi, g.se);
}

Compilation message (stderr)

Alice.cpp:23: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
   23 | #pragma comment(linker, "/stack:200000000")
      | 

Bob.cpp:23: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
   23 | #pragma comment(linker, "/stack:200000000")
      | 
Bob.cpp: In function 'void Bob(int, int, int*, int*)':
Bob.cpp:129:40: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  129 |     for (i=0;i<V;i++) if (gt[i].size() == V-2) break;
      |                           ~~~~~~~~~~~~~^~~~~~
Bob.cpp:128:13: warning: unused variable 'k' [-Wunused-variable]
  128 |     int i,j,k;
      |             ^
Bob.cpp:128:11: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
  128 |     int i,j,k;
      |           ^

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