Submission #699859

#	Time	Username	Problem	Language	Result	Execution time	Memory
699859		cig32	Amusement Park (JOI17_amusement_park)	C++17	0 / 100	24 ms	4316 KiB

Joi

#include "Joi.h"
#include <bits/stdc++.h>
using namespace std;
 
static vector<int> adj2[12269];
static bool vis2[12269];
static int val2[12269];
static int nxt2;
static void dfs2(int node, long long X, int par) {
  val2[node] = nxt2;
  nxt2 = (nxt2 + 1) % 60;
  long long res = (X & (1ll << val2[node]));
  MessageBoard(node, (res > 0 ? 1 : 0));
  vis2[node] = 1;
  for(int x: adj2[node]) {
    if(!vis2[x]) {
      dfs2(x, X, node);
    }
  }
}
void Joi(int N, int M, int A[], int B[], long long X, int T) {
  for(int i=0; i<M; i++) {
    adj2[A[i]].push_back(B[i]);
    adj2[B[i]].push_back(A[i]);
  }
  for(int i=0; i<N; i++) {
    sort(adj2[i].begin(), adj2[i].end());
  }
  for(int i=0; i<N; i++) {
    vis2[i] = 0;
  }
  dfs2(0, X, -1);
}

Ioi

#include "Ioi.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e4 + 10;
static vector<int> adj[MAXN];
static bool vis[MAXN];
static int val[MAXN];
static int nxt;
static vector<int> et;
static void dfs(int node, int par) {
  val[node] = nxt;
  nxt = (nxt+1) % 60;
  vis[node] = 1;
  et.push_back(node);
  for(int x: adj[node]) {
    if(!vis[x]) {
      dfs(x, node);
      et.push_back(node);
    }
  }
}
 
long long Ioi(int N, int M, int A[], int B[], int P, int V, int T) {
  for(int i=0; i<M; i++) {
    adj[A[i]].push_back(B[i]);
    adj[B[i]].push_back(A[i]);
  }
  for(int i=0; i<N; i++) {
    sort(adj[i].begin(), adj[i].end());
  }
  for(int i=0; i<N; i++) {
    vis[i] = 0;
  }
  dfs(0, -1);
  long long ans = 0;
  int res[60];
  for(int i=0; i<60; i++) res[i] = 0;
  res[val[P]] = V;
  int l[N];
  for(int i=0; i<N; i++) l[i] = -1;
  for(int i=0; i<et.size(); i++) {
    if(l[et[i]] == -1) l[et[i]] = i;
  }
  int node = P, idx = l[P];
  for(int i=val[P]-1; i>=0; i--) {
    while(idx-1 >= 0 && val[et[idx]] != i) {
      idx--;
      int rm = Move(et[idx]);
      node = et[idx];
      res[val[node]] = rm;
    }
  }
  for(int i=1; i<60; i++) {
    while(idx+1 < et.size() && val[et[idx]] != i) {
      idx++;
      int rm = Move(et[idx]);
      node = et[idx];
      res[val[node]] = rm;
    }
  }
  for(int i=0; i<60; i++) {
    if(res[i]) ans += (1ll << i);
  }
  return ans;
}

Compilation message (stderr)

Ioi.cpp: In function 'long long int Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:41:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   for(int i=0; i<et.size(); i++) {
      |                ~^~~~~~~~~~
Ioi.cpp:54:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     while(idx+1 < et.size() && val[et[idx]] != i) {
      |           ~~~~~~^~~~~~~~~~~

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