oj.uz

Submission #1069112

# Submission time Handle Problem Language Result Execution time Memory
1069112 2024-08-21T16:06:02 Z HorizonWest Catfish Farm (IOI22_fish) C++17
23 / 100
 1000 ms 136044 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;
}
 
long long max_weights(int n, int m, vector<int> X, vector<int> Y, vector<int> W) 
{
    vector <vector<pair<ll, ll>>> v(n + 7, vector <pair<ll, ll>> ());
 
    //vector <vector<ll>> v(n, vector <ll> (n+1, 0)); 
    vector <map <int, int>> mp(n + 1, map <int, int> ()); 
 
    for(int i = 0; i < m; i++){
        //v[X[i]][Y[i]+1] = 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;
        }
    }
 
    auto C = [&] (int i, int j, int k) -> ll
    {
        ll ans = 0;
        if(i >= 0 && i < n) {
            ans = ans + max(0LL, v[i][mp[i][j]].sd - v[i][mp[i][k]].sd);
        }
        return ans;
    };
 
    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:130:21: warning: statement has no effect [-Wunused-value]
  130 |                 for(k; k < (int) v[i-2].size(); k++)
      |                     ^
fish.cpp:159:21: warning: statement has no effect [-Wunused-value]
  159 |                 for(k; k >= 0; k--){
      |                     ^
fish.cpp:183:21: warning: statement has no effect [-Wunused-value]
  183 |                 for(k; k < (ll) v[i-1].size(); k++)
      |                     ^

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 465 ms 48276 KB Output is correct
2 Correct 590 ms 56628 KB Output is correct
3 Correct 36 ms 26548 KB Output is correct
4 Correct 39 ms 26544 KB Output is correct
5 Execution timed out 1082 ms 136044 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Execution timed out 1018 ms 73108 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 26804 KB Output is correct
2 Correct 54 ms 26544 KB Output is correct
3 Correct 116 ms 37512 KB Output is correct
4 Correct 105 ms 35508 KB Output is correct
5 Correct 193 ms 51688 KB Output is correct
6 Correct 171 ms 51312 KB Output is correct
7 Correct 171 ms 51116 KB Output is correct
8 Correct 193 ms 51376 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 1 ms 604 KB Output is correct
10 Correct 5 ms 1024 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 776 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 1 ms 604 KB Output is correct
10 Correct 5 ms 1024 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 776 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct
17 Correct 170 ms 13356 KB Output is correct
18 Correct 143 ms 12232 KB Output is correct
19 Correct 152 ms 13140 KB Output is correct
20 Correct 140 ms 12044 KB Output is correct
21 Correct 124 ms 11856 KB Output is correct
22 Correct 268 ms 22668 KB Output is correct
23 Incorrect 58 ms 4680 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 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 1 ms 604 KB Output is correct
10 Correct 5 ms 1024 KB Output is correct
11 Correct 2 ms 604 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 776 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct
17 Correct 170 ms 13356 KB Output is correct
18 Correct 143 ms 12232 KB Output is correct
19 Correct 152 ms 13140 KB Output is correct
20 Correct 140 ms 12044 KB Output is correct
21 Correct 124 ms 11856 KB Output is correct
22 Correct 268 ms 22668 KB Output is correct
23 Incorrect 58 ms 4680 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 Correct 39 ms 26804 KB Output is correct
2 Correct 54 ms 26544 KB Output is correct
3 Correct 116 ms 37512 KB Output is correct
4 Correct 105 ms 35508 KB Output is correct
5 Correct 193 ms 51688 KB Output is correct
6 Correct 171 ms 51312 KB Output is correct
7 Correct 171 ms 51116 KB Output is correct
8 Correct 193 ms 51376 KB Output is correct
9 Correct 258 ms 79188 KB Output is correct
10 Correct 206 ms 38440 KB Output is correct
11 Correct 377 ms 80552 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 39 ms 26768 KB Output is correct
19 Correct 38 ms 26804 KB Output is correct
20 Correct 41 ms 26812 KB Output is correct
21 Correct 40 ms 26032 KB Output is correct
22 Incorrect 395 ms 80308 KB 1st lines differ - on the 1st token, expected: '45561826463480', found: '45561005144564'
23 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 465 ms 48276 KB Output is correct
2 Correct 590 ms 56628 KB Output is correct
3 Correct 36 ms 26548 KB Output is correct
4 Correct 39 ms 26544 KB Output is correct
5 Execution timed out 1082 ms 136044 KB Time limit exceeded
6 Halted 0 ms 0 KB -