Submission #63473

#	Time	Username	Problem	Language	Result	Execution time	Memory
63473		reality	Amusement Park (JOI17_amusement_park)	C++17	28 / 100	110 ms	75032 KiB

Joi

#include "Joi.h"
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template<class T> ostream& operator<<(ostream& stream, const vector<T> v){ stream << "[ "; for (int i=0; i<(int)v.size(); i++) stream << v[i] << " "; stream << "]"; return stream;}
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}
const int N = 1e6 + 5;

static vi Euler;

static int was[N];

static int ok[N];

static vi g[N];

static int T = -1;

static void dfs(int node,int prev) {
    T = (T + 1) % 60;
    ok[Euler.size()] = T;
    Euler.pb(node);
    for (auto it : g[node])
        if (it != prev) {
            dfs(it,node);
            Euler.pb(node);
        }
}

static int f[N];

static int get(int k) {
    return k == f[k] ? k : f[k] = get(f[k]);
}

static int n;

void Joi(int N, int M, int A[], int B[], long long X, int T) {
    srand(696969);
    memset(ok,-1,sizeof(ok));
  	n = N;
    for (int i = 0;i < n;++i)
  		f[i] = i;
  	for (int i = 0;i < M;++i) {
  		if (get(A[i]) == get(B[i]))
  			continue;
  		g[A[i]].pb(B[i]);
  		g[B[i]].pb(A[i]);
  		f[get(A[i])] = get(B[i]);
  	}
  	dfs(rand() % n,-1);
  	int sz = Euler.size();
    for (int i = 0;i < sz;++i)
  		if (ok[i] != -1)
  			MessageBoard(Euler[i],(X >> ok[i]) & 1);
}

Ioi

#include "Ioi.h"
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template<class T> ostream& operator<<(ostream& stream, const vector<T> v){ stream << "[ "; for (int i=0; i<(int)v.size(); i++) stream << v[i] << " "; stream << "]"; return stream;}
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}
const int N = 1e6 + 5;

static vi Euler;

static int was[N];

static int ok[N];

static int W[N];

static vi g[N];

static int T = -1;

static void dfs(int node,int prev) {
	T = (T + 1) % 60;
    ok[Euler.size()] = T;
    W[node] = T;
    Euler.pb(node);
    for (auto it : g[node])
        if (it != prev) {
            dfs(it,node);
            Euler.pb(node);
        }
}

static int f[N];

static int get(int k) {
	return k == f[k] ? k : f[k] = get(f[k]);
}

static int n;

long long Ioi(int N, int M, int A[], int B[], int P, int V, int T) {
  	srand(696969);
  	memset(ok,-1,sizeof(ok));
  	n = N;
  	for (int i = 0;i < n;++i)
  		f[i] = i;
  	for (int i = 0;i < M;++i) {
  		if (get(A[i]) == get(B[i]))
  			continue;
  		g[A[i]].pb(B[i]);
  		g[B[i]].pb(A[i]);
  		f[get(A[i])] = get(B[i]);
  	}
  	dfs(rand() % n,-1);
  	int sz = Euler.size();
  	ll mask = (1ll << 60) - 1;
  	int pos = -1;
  	for (int i = 0;i < sz;++i)
  		if (Euler[i] == P) {
  			pos = i;
  			break;
  		}
  	ll answer = 0;
  	answer |= V * (1ll << W[Euler[pos]]);
  	mask ^= (1ll << W[Euler[pos]]);
  	for (int i = (pos + 1) % sz,j = pos;mask;i = (i + 1) % sz,j = (j + 1) % sz)  {
  		if (Euler[i] == Euler[j])
  			continue;
  		int nxt = Move(Euler[i]);
  		if (mask & (1ll << W[Euler[i]])) {
  			mask ^= 1ll << W[Euler[i]];
  			answer |= nxt * (1ll << W[Euler[i]]); 
  		}
  	}
  	return answer;
}

Compilation message (stderr)

Joi.cpp:22:12: warning: 'was' defined but not used [-Wunused-variable]
 static int was[N];
            ^~~

Ioi.cpp:22:12: warning: 'was' defined but not used [-Wunused-variable]
 static int was[N];
            ^~~

• Subtask 1: 8 / 8
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 55
• Subtask 5: 0 / 17