oj.uz

답안 #1069538

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1069538 2024-08-22T05:11:30 Z Muhammad_Aneeq 봉쇄 시간 (IOI23_closing) C++17
8 / 100
 126 ms 42740 KB 
#include <vector>
#include <queue>
#include <algorithm>
using namespace std;
int const MAXN=2e5+10;
vector<pair<int,int>>nei[MAXN]={};
long long dis[2][MAXN]={};
bool uni=0;
vector<pair<long long,int>>d[2];
void dfs(int u,int p=-1)
{
    d[uni].push_back({dis[uni][u],u});
    for (auto [i,w]:nei[u])
    {
        if (i==p)
            continue;
        dis[uni][i]=dis[uni][u]+w;
        dfs(i,u);
    }
}
int max_score(int N, int X, int Y, long long K, vector<int> U,vector<int> V, vector<int> W)
{
    for (int i=0;i<N;i++)
        nei[i]={},dis[0][i]=dis[1][i]=0;
    d[0]=d[1]={};
    uni=0;
    for (int i=0;i<N-1;i++)
    {
        nei[U[i]].push_back({V[i],W[i]});
        nei[V[i]].push_back({U[i],W[i]});
    }
    dfs(X);
    uni=1;
    dfs(Y);
    for (int i=0;i<2;i++)
        sort(begin(d[i]),end(d[i]));
    int i=0,j=0;
    int cnt=0;
    while (i<N&&j<N)
    {
        long long z=1e11;
        if (i<N)
            z=d[0][i].first;
        if (j<N)
            z=min(z,d[1][j].first);
        if (z>K)
            break;
        else
            K-=z;
        if (i<N&&j<N)
        {
            if (d[0][i].first<d[1][j].first)
            {
                cnt++;i++;
            }
            else
            {
                cnt++;j++;
            }
        }
        else if (i==N)
        {
            cnt++;
            j++;
        }
        else
            cnt++,i++;
    }
    return cnt;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 96 ms 36364 KB Output is correct
2 Correct 126 ms 42740 KB Output is correct
3 Correct 53 ms 9808 KB Output is correct

Subtask #2
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 7004 KB Output is correct
2 Incorrect 1 ms 7004 KB 1st lines differ - on the 1st token, expected: '30', found: '24'
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 7004 KB Output is correct
2 Incorrect 1 ms 7004 KB 1st lines differ - on the 1st token, expected: '30', found: '24'
3 Halted 0 ms 0 KB -

Subtask #4
0.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 7004 KB Output is correct
2 Incorrect 1 ms 7004 KB 1st lines differ - on the 1st token, expected: '30', found: '24'
3 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 7256 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
2 Halted 0 ms 0 KB -