oj.uz

답안 #1069227

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1069227 2024-08-21T17:47:20 Z HorizonWest 메기 농장 (IOI22_fish) C++17
14 / 100
 83 ms 40900 KB 
#include <iostream>
#include <complex>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <functional>
#include <bitset>
#include <queue>
#include <map>
#include <stack>
#include <cmath>
#include <cstdint>
//#include "fish.h"
using namespace std;
 
#pragma GCC optimize("O3")
#define endl '\n'
#define db double
#define ll long long
#define pb push_back
#define fs first
#define sd second
#define Mod long(1e9 + 7)
#define all(x) x.begin(), x.end()
#define unvisited long(-1)
#define Eps double(1e-9)
#define _for(i, n) for(int i = 0; i < (n); i++)
#define dbg(x) cout << #x ": " << x << endl;
 
const int Max = 1e6 + 7, Inf = 1e9 + 7;
 
void print(bool x) { cout << (x ? "YES" : "NO") << endl; }
 
string tostring (__int128 x)
{
    string ans = "";
    while(x > 0)
    {
        ans += (x % 10 + '0');
        x /= 10;
    }
    reverse(all(ans));
    return ans;
}

vector <vector<pair<ll, ll>>> v;
//vector <vector<int>> mp;
int N, mp[3007][3007];

ll C(int i, int j, int k)
{
    if(i >= 0 && i < N)
        return max(0LL, v[i][mp[i][j]].sd - v[i][mp[i][k]].sd);
    else 
        return 0LL;
}

void add(int i, int y, int w)
{
    if(i < 0 || i >= N) 
        return;
    if(mp[i][y] == 0){
        v[i].push_back({ y, 0 });
        mp[i][y] = v[i].size();
    }
    v[i][mp[i][y] - 1].sd += w;
}
 
long long max_weights(int n, int m, vector<int> X, vector<int> Y, vector<int> W) 
{   
    v.clear(); //mp.clear();
    v.assign(n + 7, vector <pair<ll, ll>> ());
    //mp.assign(n + 1, vector <int> (n + 1, 0)); 
    N = n;
 
    for(int i = 0; i < m; i++){
        //v[X[i]][Y[i]+1].sd = W[i];

        add(X[i], Y[i]+1, W[i]);
        add(X[i] - 2, Y[i]+1, 0);
        add(X[i] - 1, Y[i]+1, 0);
        add(X[i] + 1, Y[i]+1, 0);
        add(X[i] + 2, Y[i]+1, 0);
        //v[X[i]].push_back({ Y[i] + 1, W[i] });
        //if(X[i] > 0) v[X[i]-1].push_back({ Y[i] + 1, 0 });
        //if(X[i] > 1) v[X[i]-2].push_back({ Y[i] + 1, 0 });
        //if(X[i] < n) v[X[i]+1].push_back({ Y[i] + 1, 0 });
        //if(X[i] < n) v[X[i]+2].push_back({ Y[i] + 1, 0 });
    }
 
    for(int i = 0; i < n; i++)
    {
        v[i].push_back({ 0, 0 }); sort(all(v[i]));
 
        for(int j = 0; j < (int) v[i].size(); j++){
            if (j != 0) v[i][j].sd += v[i][j-1].sd;
            mp[i][v[i][j].fs] = j;
        }
    }
 
    vector <vector<ll>> dp1, dp2; ll ans = 0; 
 
    for(int i = 0; i < n; i++)
    {   
        dp1.push_back(vector <ll> (v[i].size(), 0));
        dp2.push_back(vector <ll> (v[i].size(), 0));
 
        for(int j = 0; j < (int) v[i].size(); j++)
        {
            int hj = v[i][j].fs;
 
            dp1[i][j] = C(i-1, hj, 0) + C(i+1, hj, 0);
            dp2[i][j] = C(i-1, hj, 0) + C(i+1, hj, 0);
 
            /*if(i > 1){
                for(int k = 0; k < (int) v[i-2].size(); k++){
                    int hk = v[i-2][k].fs; 
                    dp1[i][j] = max(dp1[i][j], (i > 1 ? dp2[i-2][k] : 0LL) + C(i-1, hj, hk) + C(i+1, hj, 0));
                }
            }*/
 
            /*if(i > 0){
                for(int k = 0; k < (int) v[i-1].size(); k++){    
                    int hk = v[i-1][k].fs; 
                    dp1[i][j] = max(dp1[i][j], (i != 0 ? dp1[i-1][k] : 0) + C(i-1, hj, hk) + C(i+1, hj, 0) - C(i, hk, 0));
                }
            
                for(int k = 0; k < (int) v[i-1].size(); k++){
                    int hk = v[i-1][k].fs; 
                    dp2[i][j] = max(dp2[i][j], (i != 0 ? dp1[i-1][k] : 0) - C(i, hj, 0) + C(i+1, hj, 0));
                    dp2[i][j] = max(dp2[i][j], (i != 0 ? dp2[i-1][k] : 0) - C(i, hj, 0) + C(i+1, hj, 0));
                }
            }*/
 
            ans = max(ans, max(dp1[i][j], dp2[i][j])); 
        } 

        if(i > 1)
        {
            ll k = 0, mx = 0, tmp = 0;

            for(k = 0; k < (int) v[i-2].size(); k++){
                tmp = max(tmp, dp2[i-2][k]); 
            }

            for(int j = 0; j < (int) v[i].size(); j++)
            {
                int hj = v[i][j].fs; 
 
                for(k; k < (int) v[i-2].size(); k++)
                {
                    if(v[i-2][k].fs <= v[i][j].fs)
                    {
                        int hk = v[i-2][k].fs, hx = v[i-2][mx].fs; 

                        ll val1 = dp2[i-2][mx] + C(i-1, hj, hx) + C(i+1, hj, 0);
                        ll val2 = dp2[i-2][k] + C(i-1, hj, hk) + C(i+1, hj, 0);

                        if(val1 < val2){
                            mx = k;
                        }
                    } else break;
                }

                int hx = v[i-2][mx].fs;
                dp1[i][j] = max(dp1[i][j], dp2[i-2][mx] + C(i-1, hj, hx) + C(i+1, hj, 0));
                dp1[i][j] = max(dp1[i][j], tmp + C(i+1, hj, 0)); 

                ans = max(ans, dp1[i][j]); 
            }
        }
 
        if(i > 0)
        {
            ll k = v[i-1].size() - 1, mx = 0; 
            for(int j = (int) v[i].size() - 1; j >= 0; j--)
            {
                int hj = v[i][j].fs;
                for(k; k >= 0; k--){
                    if(v[i-1][k].fs >= v[i][j].fs){
                        mx = max(mx, dp1[i-1][k]); 
                        mx = max(mx, dp2[i-1][k]); 
                    } else break;
                }
 
                dp2[i][j] = max(dp2[i][j], mx - C(i, hj, 0) + C(i+1, hj, 0));
 
                ans = max(ans, max(dp1[i][j], dp2[i][j])); 
            }

            ll tmp = 0;
            for(k = 0; k < (int) v[i-1].size(); k++){
                int hk = v[i-1][k].fs;
                tmp = max(tmp, dp1[i-1][k] - C(i, hk, 0)); 
            }

            k = 0; mx = 0; 
            
            for(int j = 0; j < (int) v[i].size(); j++)
            {
                int hj = v[i][j].fs; 
 
                for(k; k < (int) v[i-1].size(); k++)
                {
                    if(v[i-1][k].fs <= v[i][j].fs)
                    {
                        int hk = v[i-1][k].fs, hx = v[i-1][mx].fs; 

                        ll val1 = dp1[i-1][mx] + C(i-1, hj, hx) + C(i+1, hj, 0) - C(i, hx, 0);
                        ll val2 = dp1[i-1][k] + C(i-1, hj, hk) + C(i+1, hj, 0) - C(i, hk, 0);

                        if(val1 < val2){
                            mx = k;
                        }
                    } else break;
                }

                int hx = v[i-1][mx].fs;
                dp1[i][j] = max(dp1[i][j], dp1[i-1][mx] + C(i-1, hj, hx) + C(i+1, hj, 0) - C(i, hx, 0));
                dp1[i][j] = max(dp1[i][j], tmp + C(i+1, hj, 0)); 
                dp2[i][j] = max(dp2[i][j], dp1[i][j]);

                ans = max(ans, max(dp1[i][j], dp2[i][j])); 
            }
        }
    }
 
    return ans;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:150:21: warning: statement has no effect [-Wunused-value]
  150 |                 for(k; k < (int) v[i-2].size(); k++)
      |                     ^
fish.cpp:179:21: warning: statement has no effect [-Wunused-value]
  179 |                 for(k; k >= 0; k--){
      |                     ^
fish.cpp:203:21: warning: statement has no effect [-Wunused-value]
  203 |                 for(k; k < (int) v[i-1].size(); k++)
      |                     ^

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 56 ms 37004 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 352 KB Output is correct
2 Runtime error 83 ms 40900 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 36 ms 30056 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 360 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 1 ms 360 KB Output is correct
4 Correct 1 ms 360 KB Output is correct
5 Correct 0 ms 360 KB Output is correct
6 Correct 0 ms 360 KB Output is correct
7 Correct 1 ms 448 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 2 ms 1884 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 2 ms 1624 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 2 ms 1624 KB Output is correct

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 360 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 1 ms 360 KB Output is correct
4 Correct 1 ms 360 KB Output is correct
5 Correct 0 ms 360 KB Output is correct
6 Correct 0 ms 360 KB Output is correct
7 Correct 1 ms 448 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 2 ms 1884 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 2 ms 1624 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 2 ms 1624 KB Output is correct
15 Correct 3 ms 1880 KB Output is correct
16 Correct 2 ms 856 KB Output is correct
17 Correct 22 ms 5724 KB Output is correct
18 Correct 28 ms 5212 KB Output is correct
19 Correct 29 ms 5724 KB Output is correct
20 Correct 18 ms 5084 KB Output is correct
21 Correct 15 ms 4700 KB Output is correct
22 Correct 30 ms 8028 KB Output is correct
23 Incorrect 7 ms 3672 KB 1st lines differ - on the 1st token, expected: '3061077668538', found: '3061028647437'
24 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 360 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 1 ms 360 KB Output is correct
4 Correct 1 ms 360 KB Output is correct
5 Correct 0 ms 360 KB Output is correct
6 Correct 0 ms 360 KB Output is correct
7 Correct 1 ms 448 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 1112 KB Output is correct
10 Correct 2 ms 1884 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 2 ms 1624 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 2 ms 1624 KB Output is correct
15 Correct 3 ms 1880 KB Output is correct
16 Correct 2 ms 856 KB Output is correct
17 Correct 22 ms 5724 KB Output is correct
18 Correct 28 ms 5212 KB Output is correct
19 Correct 29 ms 5724 KB Output is correct
20 Correct 18 ms 5084 KB Output is correct
21 Correct 15 ms 4700 KB Output is correct
22 Correct 30 ms 8028 KB Output is correct
23 Incorrect 7 ms 3672 KB 1st lines differ - on the 1st token, expected: '3061077668538', found: '3061028647437'
24 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 36 ms 30056 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 56 ms 37004 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -