oj.uz

답안 #301289

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
301289 2020-09-17T20:12:26 Z joseacaz 식물 비교 (IOI20_plants) C++17
0 / 100
 116 ms 33492 KB 
#include "plants.h"
#include <bits/stdc++.h>
#define pb push_back
#define all(x) x.begin(), x.end()

using namespace std;
typedef long long ll;
typedef vector<int> vi;

const int MAXN = 5e3 + 5;
int N, k, vis[MAXN], memo[MAXN][MAXN], MP[MAXN][MAXN];
vi r, Graph[MAXN];

void sub(int idx)
{
    int id = idx;
    for(int i = 1; i < k; i++)
    {
        id--;
        if(id < 0)
            id += N;
        if(r[id] > 0)
        {
            r[id]--;
            if(r[id] == 0 && !vis[id] && !MP[idx][id])
            {
                Graph[idx].pb(id);
                MP[idx][id] = 1;
            }
        }
    }
}

int getnext(int idx)
{
    int id = idx;
    for(int i = 1; i < N; i++)
    {
        id++;
        if(id > N)
            id -= N;
        if(i < k && !vis[id] && !MP[idx][id])
        {
            Graph[idx].pb(id);
            MP[idx][i] = 1;
        }
        if(r[id] == 0 && !vis[id])
            return id;
    }
    return idx;
}

void dfs(int root, int node)
{
    memo[root][node] = 1;
    for(auto i : Graph[node])
        if(i != node && !memo[root][i])
            dfs(root, i);
}

void init(int _k, vi _r)
{
    k = _k;
    swap(r, _r);
    N = r.size();
    
    int maxIdx = 0;
    for(int i = 0; i < N; i++)
    {
        if(r[i] != 0)
            continue;
        int maxim = 1;
        int id = i;
        for(int j = 1; j < k; j++)
        {
            id--;
            if(id < 0)
                id += N;
            if(r[id] == 0)
                maxim = 0;
        }
        if(maxim)
            maxIdx = i;
    }
    
    while(!vis[maxIdx])
    {
        vis[maxIdx] = 1;
        sub(maxIdx);
        maxIdx = getnext(maxIdx);
    }
    for(int i = 0; i < N; i++)
        dfs(i, i);
	return;
}

int compare_plants(int x, int y)
{
    if(memo[x][y])
        return 1;
    else if(memo[y][x])
        return -1;
    return 0;
}

Compilation message

plants.cpp: In function 'void init(int, vi)':
plants.cpp:92:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   92 |     for(int i = 0; i < N; i++)
      |     ^~~
plants.cpp:94:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   94 |  return;
      |  ^~~~~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Incorrect 1 ms 512 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Incorrect 1 ms 544 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Incorrect 1 ms 544 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 640 KB Output is correct
3 Incorrect 116 ms 33492 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Incorrect 1 ms 512 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Incorrect 0 ms 512 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Incorrect 1 ms 512 KB Output isn't correct
4 Halted 0 ms 0 KB -