oj.uz

답안 #1088430

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1088430 2024-09-14T11:06:49 Z Rolo678 Aesthetic (NOI20_aesthetic) C++14
0 / 100
 305 ms 43088 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<vector<pair<int,int>>>g(3e5+5);
vector<long long>dp2(3e5+5,-1);
 vector<long long>dp(3e5+5,-1);

signed main()
{
   // freopen("5-18.in", "r", stdin);

  int n,m;
  cin >> n>>m;
 // cin >> n >> m;
  vector<pair<int,int>>e(m+1);
  for(int i = 1;i<=m;i++)
  {
    int a,b,w;
    cin >> a >> b >> w;
    //cout << 'o';
    g[a].push_back({b,i});
    g[b].push_back({a,i});
    e[i] = {a,b};
//cout << 'o';
  }

  //dfs();
  dp[1] =0;
  queue<int>q;
  q.push(1);
  while(!q.empty())
  {
   int v = q.front();
    q.pop();
    for(auto u : g[v])
    {
      if(dp[u.first] == -1)
      {
        q.push(u.first);
        dp[u.first] = dp[v] + 1;
      }
    }
  }
    dp2[n] =0;
  //queue<int>q;
  q.push(n);
  while(!q.empty())
  {
    int v = q.front();
    q.pop();
    for(auto u : g[v])
    {
      if(dp2[u.first] == -1)
      {
        q.push(u.first);
        dp2[u.first] = dp2[v] + 1;
      }
    }
  }
  int mn = 1e9+5;
  int num = 0;
  int mn2 = 1e9+5;
  map<int,int>mp;
  int s =1;
  for(int i = 1;i<=m;i++)
  {
    int u = e[i].first;
    int v = e[i].second;

    if(dp[u] + dp2[v]+1 == dp[n])
    {
       mp[dp[u]]++;

       //cout << 'u';
    }
     if(dp[v] + dp2[u]+1 == dp[n])
    {
       mp[dp[v]]++;

       //cout << 'u';
    }
     /*/if(i==m && (dp[u] + dp2[v]+1 <mn+mn2+1))
    {
      num++;
       s= 0;
    }/*/
   // cout <<  dp[i.first] + dp2[i.second]+1 << '\n';
  }
  for(int i = 1;i<dp[n];i++)
  {
      if(mp[i]==1)num=1;
  }
   cout << dp[n] + ((num ==1));
}

Compilation message

Aesthetic.cpp: In function 'int main()':
Aesthetic.cpp:60:7: warning: unused variable 'mn' [-Wunused-variable]
   60 |   int mn = 1e9+5;
      |       ^~
Aesthetic.cpp:62:7: warning: unused variable 'mn2' [-Wunused-variable]
   62 |   int mn2 = 1e9+5;
      |       ^~~
Aesthetic.cpp:64:7: warning: unused variable 's' [-Wunused-variable]
   64 |   int s =1;
      |       ^

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 6 ms 12124 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 6 ms 12124 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 305 ms 39508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 304 ms 39788 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 230 ms 37204 KB Output is correct
2 Correct 177 ms 35152 KB Output is correct
3 Correct 190 ms 36176 KB Output is correct
4 Correct 204 ms 36176 KB Output is correct
5 Correct 191 ms 36180 KB Output is correct
6 Correct 201 ms 36260 KB Output is correct
7 Correct 202 ms 36024 KB Output is correct
8 Correct 197 ms 36180 KB Output is correct
9 Correct 192 ms 36180 KB Output is correct
10 Correct 214 ms 36480 KB Output is correct
11 Correct 181 ms 36180 KB Output is correct
12 Correct 234 ms 37712 KB Output is correct
13 Correct 207 ms 36148 KB Output is correct
14 Correct 188 ms 43088 KB Output is correct
15 Correct 182 ms 43088 KB Output is correct
16 Correct 240 ms 38300 KB Output is correct
17 Incorrect 218 ms 37204 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 230 ms 37204 KB Output is correct
2 Correct 177 ms 35152 KB Output is correct
3 Correct 190 ms 36176 KB Output is correct
4 Correct 204 ms 36176 KB Output is correct
5 Correct 191 ms 36180 KB Output is correct
6 Correct 201 ms 36260 KB Output is correct
7 Correct 202 ms 36024 KB Output is correct
8 Correct 197 ms 36180 KB Output is correct
9 Correct 192 ms 36180 KB Output is correct
10 Correct 214 ms 36480 KB Output is correct
11 Correct 181 ms 36180 KB Output is correct
12 Correct 234 ms 37712 KB Output is correct
13 Correct 207 ms 36148 KB Output is correct
14 Correct 188 ms 43088 KB Output is correct
15 Correct 182 ms 43088 KB Output is correct
16 Correct 240 ms 38300 KB Output is correct
17 Incorrect 218 ms 37204 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 6 ms 12124 KB Output isn't correct
2 Halted 0 ms 0 KB -