oj.uz

Submission #1069165

# Submission time Handle Problem Language Result Execution time Memory
1069165 2024-08-21T16:41:44 Z HorizonWest Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 1067628 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;
}
 
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 < n; i++){
        for(int j = 0; j <= n; j++){
            v[i].push_back({ j, 0 });
        }
    }
 
    for(int i = 0; i < m; i++){
        v[X[i]][Y[i]+1].sd = W[i];
        //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 < (ll) 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)); 

                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:139:21: warning: statement has no effect [-Wunused-value]
  139 |                 for(k; k < (int) v[i-2].size(); k++)
      |                     ^
fish.cpp:168:21: warning: statement has no effect [-Wunused-value]
  168 |                 for(k; k >= 0; k--){
      |                     ^
fish.cpp:192:21: warning: statement has no effect [-Wunused-value]
  192 |                 for(k; k < (ll) v[i-1].size(); k++)
      |                     ^

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1136 ms 1025316 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Execution timed out 1126 ms 1031500 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1118 ms 1067628 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 12 ms 8344 KB Output is correct
11 Correct 3 ms 3420 KB Output is correct
12 Correct 10 ms 7004 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 9 ms 5724 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 12 ms 8344 KB Output is correct
11 Correct 3 ms 3420 KB Output is correct
12 Correct 10 ms 7004 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 9 ms 5724 KB Output is correct
15 Correct 9 ms 8280 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 19 ms 9560 KB Output is correct
18 Correct 16 ms 9360 KB Output is correct
19 Correct 17 ms 9464 KB Output is correct
20 Correct 16 ms 9432 KB Output is correct
21 Correct 18 ms 9300 KB Output is correct
22 Correct 23 ms 10576 KB Output is correct
23 Correct 11 ms 8540 KB Output is correct
24 Correct 14 ms 9032 KB Output is correct
25 Correct 9 ms 8280 KB Output is correct
26 Correct 10 ms 8536 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 12 ms 8344 KB Output is correct
11 Correct 3 ms 3420 KB Output is correct
12 Correct 10 ms 7004 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 9 ms 5724 KB Output is correct
15 Correct 9 ms 8280 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 19 ms 9560 KB Output is correct
18 Correct 16 ms 9360 KB Output is correct
19 Correct 17 ms 9464 KB Output is correct
20 Correct 16 ms 9432 KB Output is correct
21 Correct 18 ms 9300 KB Output is correct
22 Correct 23 ms 10576 KB Output is correct
23 Correct 11 ms 8540 KB Output is correct
24 Correct 14 ms 9032 KB Output is correct
25 Correct 9 ms 8280 KB Output is correct
26 Correct 10 ms 8536 KB Output is correct
27 Correct 998 ms 330068 KB Output is correct
28 Correct 90 ms 39484 KB Output is correct
29 Execution timed out 1080 ms 341596 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1118 ms 1067628 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1136 ms 1025316 KB Time limit exceeded
2 Halted 0 ms 0 KB -