Submission #949408

#	Time	Username	Problem	Language	Result	Execution time	Memory
949408		Alfraganus	Game (APIO22_game)	C++17	2 / 100	1 ms	596 KiB

game

#include <bits/stdc++.h>
#include "game.h"
// #include "grader.cpp"
using namespace std;

const int N = 1001;
int mx[N], K;
vector<int> graph[N];

void init(int n, int k) {
  for(int i = 0; i < n; i ++)
    mx[i] = -1;
  for(int i = 0; i < k; i ++)
    mx[i] = i;
  K = k;
}

int add_teleporter(int u, int v) {
  if(u == v)
    return u < K;
  graph[u].push_back(v);
  queue<int> q;
  if(mx[v] < mx[u])
    q.push(v), mx[v] = mx[u];
  while(!q.empty()){
    int x = q.front();
    q.pop();
    if(x < K)
      if(mx[x] > x)
        return 1;
    for(int i = 0; i < graph[x].size(); i ++)
      if(mx[graph[x][i]] < mx[x])
        mx[graph[x][i]] = mx[x], q.push(graph[x][i]);
  }
  return 0;
}

Compilation message (stderr)

game.cpp: In function 'int add_teleporter(int, int)':
game.cpp:31:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for(int i = 0; i < graph[x].size(); i ++)
      |                    ~~^~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 0 / 10
• Subtask 3: 0 / 18
• Subtask 4: 0 / 30
• Subtask 5: 0 / 40