oj.uz

Submission #1069215

# Submission time Handle Problem Language Result Execution time Memory
1069215 2024-08-21T17:36:32 Z HorizonWest Catfish Farm (IOI22_fish) C++17
14 / 100
 79 ms 52024 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 < (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: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 < (ll) v[i-1].size(); k++)
      |                     ^

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 45172 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Runtime error 79 ms 52024 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 29 ms 38248 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 0 ms 360 KB Output is correct
5 Correct 1 ms 360 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 0 ms 360 KB Output is correct
8 Correct 0 ms 360 KB Output is correct
9 Correct 1 ms 1128 KB Output is correct
10 Correct 2 ms 1896 KB Output is correct
11 Correct 1 ms 1128 KB Output is correct
12 Correct 1 ms 1640 KB Output is correct
13 Correct 0 ms 692 KB Output is correct
14 Correct 2 ms 1640 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 0 ms 360 KB Output is correct
5 Correct 1 ms 360 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 0 ms 360 KB Output is correct
8 Correct 0 ms 360 KB Output is correct
9 Correct 1 ms 1128 KB Output is correct
10 Correct 2 ms 1896 KB Output is correct
11 Correct 1 ms 1128 KB Output is correct
12 Correct 1 ms 1640 KB Output is correct
13 Correct 0 ms 692 KB Output is correct
14 Correct 2 ms 1640 KB Output is correct
15 Correct 1 ms 1896 KB Output is correct
16 Correct 1 ms 872 KB Output is correct
17 Correct 46 ms 5740 KB Output is correct
18 Correct 39 ms 5216 KB Output is correct
19 Correct 38 ms 5736 KB Output is correct
20 Correct 26 ms 4968 KB Output is correct
21 Correct 25 ms 4704 KB Output is correct
22 Correct 69 ms 7904 KB Output is correct
23 Incorrect 14 ms 3684 KB 1st lines differ - on the 1st token, expected: '3061077668538', found: '3051082366309'
24 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 360 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 0 ms 360 KB Output is correct
5 Correct 1 ms 360 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 0 ms 360 KB Output is correct
8 Correct 0 ms 360 KB Output is correct
9 Correct 1 ms 1128 KB Output is correct
10 Correct 2 ms 1896 KB Output is correct
11 Correct 1 ms 1128 KB Output is correct
12 Correct 1 ms 1640 KB Output is correct
13 Correct 0 ms 692 KB Output is correct
14 Correct 2 ms 1640 KB Output is correct
15 Correct 1 ms 1896 KB Output is correct
16 Correct 1 ms 872 KB Output is correct
17 Correct 46 ms 5740 KB Output is correct
18 Correct 39 ms 5216 KB Output is correct
19 Correct 38 ms 5736 KB Output is correct
20 Correct 26 ms 4968 KB Output is correct
21 Correct 25 ms 4704 KB Output is correct
22 Correct 69 ms 7904 KB Output is correct
23 Incorrect 14 ms 3684 KB 1st lines differ - on the 1st token, expected: '3061077668538', found: '3051082366309'
24 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 29 ms 38248 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 45172 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -