oj.uz

Submission #1106962

# Submission time Handle Problem Language Result Execution time Memory
1106962 2024-10-31T10:22:30 Z I_am_Polish_Girl Catfish Farm (IOI22_fish) C++17
9 / 100
 84 ms 24136 KB 
#include "fish.h"

#include <vector>
#include <algorithm>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <stack>
#include <queue>
#include <cmath>
#include <random>
#include <chrono>
#include <iomanip>
#include <iostream>
#include <bitset>
#include <cmath>
#include <string>

using namespace std;


int log_ = 23;
int inf = 2000000007;
int mod = 1000000007;

int p = 523;


#include <vector>

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) 
{
	int n = N;
	

	vector <vector <pair <int, int>>> vp(n);


	for (int i = 0; i < X.size(); i++)
	{
		vp[X[i]].push_back({ Y[i] , W[i] });
	}

	for (int i = 0; i < n; i++)
	{
		sort(vp[i].begin(), vp[i].end());
	}

	vector <vector <long long>> dp0(n);
	vector <vector <long long>> dp1(n);

	for (int i = 0; i < n; i++)
	{
		dp0[i].resize(vp[i].size());
		dp1[i].resize(vp[i].size());
	}

	long long ans = 0;
	long long mx_ = 0;

	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < vp[i].size(); j++)
		{
			ans = max(ans , mx_ + vp[i][j].second);
		}

		if (i > 0)
		{

			if (i != n - 1)
			{
				int ind = 0;

				int sz = vp[i].size();

				long long mx = 0;

				for (int j = 0; j < sz; j++)
				{
					while ((ind < vp[i - 1].size()) and (vp[i - 1][ind].first < vp[i][j].first))
					{

						mx = max(mx, dp0[i - 1][ind]);
						ind++;
					}

					mx = max(mx, mx_);

					dp0[i][j] = mx + vp[i][j].second;
					mx = max(mx, dp0[i][j]);
				}
			}

			if (i != 0)
			{
				int ind = vp[i - 1].size();

				ind--;

				int sz = vp[i].size();

				long long mx = 0;

				for (int j = sz - 1; j >= 0; j--)
				{
					while ((ind >= 0) and (vp[i - 1][ind].first > vp[i][j].first))
					{
						mx = max(mx, dp1[i - 1][ind]);
						ind--;

					}

					mx = max(mx, mx_);

					dp1[i][j] = mx + vp[i][j].second;

					dp0[i][j] = max(dp0[i][j], dp1[i][j]);
					mx = max(mx, dp1[i][j]);
				}

			}
		}
		else
		{
			long long s = 0;
			for (int j = 0; j < vp[i].size(); j++)
			{
				s += vp[i][j].second;

				dp0[i][j] = s;
				dp1[i][j] = 0;
			}
		}


		for (int j = 0; j < vp[i].size(); j++)
		{
			ans = max(ans, dp0[i][j]);
			ans = max(ans, dp1[i][j]);
		}

		if (i - 1 >= 0)
		{
			for (int j = 0; j < vp[i - 1].size(); j++)
			{
				mx_ = max(mx_, dp0[i - 1][j]);
				mx_ = max(mx_, dp1[i - 1][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:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for (int i = 0; i < X.size(); i++)
      |                  ~~^~~~~~~~~~
fish.cpp:64:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |   for (int j = 0; j < vp[i].size(); j++)
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:82:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |      while ((ind < vp[i - 1].size()) and (vp[i - 1][ind].first < vp[i][j].first))
      |              ~~~~^~~~~~~~~~~~~~~~~~
fish.cpp:128:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  128 |    for (int j = 0; j < vp[i].size(); j++)
      |                    ~~^~~~~~~~~~~~~~
fish.cpp:138:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  138 |   for (int j = 0; j < vp[i].size(); j++)
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:146:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  146 |    for (int j = 0; j < vp[i - 1].size(); j++)
      |                    ~~^~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 10692 KB Output is correct
2 Correct 29 ms 12232 KB Output is correct
3 Correct 3 ms 7248 KB Output is correct
4 Correct 2 ms 7248 KB Output is correct
5 Correct 84 ms 21456 KB Output is correct
6 Correct 84 ms 24136 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 50 ms 14512 KB Output is correct
3 Correct 71 ms 17076 KB Output is correct
4 Correct 23 ms 10592 KB Output is correct
5 Correct 29 ms 12192 KB Output is correct
6 Correct 1 ms 508 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 3 ms 7416 KB Output is correct
11 Correct 2 ms 7248 KB Output is correct
12 Correct 23 ms 10692 KB Output is correct
13 Correct 31 ms 12228 KB Output is correct
14 Correct 27 ms 10620 KB Output is correct
15 Correct 31 ms 11736 KB Output is correct
16 Correct 23 ms 10692 KB Output is correct
17 Correct 26 ms 11708 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7248 KB Output is correct
2 Correct 3 ms 7248 KB Output is correct
3 Incorrect 22 ms 12856 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Incorrect 1 ms 336 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '194343694717'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Incorrect 1 ms 336 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '194343694717'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Incorrect 1 ms 336 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '194343694717'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7248 KB Output is correct
2 Correct 3 ms 7248 KB Output is correct
3 Incorrect 22 ms 12856 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 10692 KB Output is correct
2 Correct 29 ms 12232 KB Output is correct
3 Correct 3 ms 7248 KB Output is correct
4 Correct 2 ms 7248 KB Output is correct
5 Correct 84 ms 21456 KB Output is correct
6 Correct 84 ms 24136 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 50 ms 14512 KB Output is correct
9 Correct 71 ms 17076 KB Output is correct
10 Correct 23 ms 10592 KB Output is correct
11 Correct 29 ms 12192 KB Output is correct
12 Correct 1 ms 508 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 3 ms 7416 KB Output is correct
17 Correct 2 ms 7248 KB Output is correct
18 Correct 23 ms 10692 KB Output is correct
19 Correct 31 ms 12228 KB Output is correct
20 Correct 27 ms 10620 KB Output is correct
21 Correct 31 ms 11736 KB Output is correct
22 Correct 23 ms 10692 KB Output is correct
23 Correct 26 ms 11708 KB Output is correct
24 Correct 3 ms 7248 KB Output is correct
25 Correct 3 ms 7248 KB Output is correct
26 Incorrect 22 ms 12856 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
27 Halted 0 ms 0 KB -