oj.uz

Submission #1107024

# Submission time Handle Problem Language Result Execution time Memory
1107024 2024-10-31T11:56:52 Z I_am_Polish_Girl Catfish Farm (IOI22_fish) C++17
3 / 100
 95 ms 25928 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;
long long inf = 8000000007000000007ll;
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);
	vector <long long> sum(n);


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

		sum[X[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;

	vector <long long> dp(n);

	for (int i = 0; i < n; i++)
	{

		if (i >= 4)
		{
			mx_ = max(mx_, dp[i - 3] + sum[i - 3] + sum[i - 2]);
		}

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


		if ((i > 0) and (vp[i].size() > 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 mx1 = 0;
				long long mx2 = 0;


				for (int j = sz - 1; j >= 0; j--)
				{
					while ((ind >= 0) and (vp[i - 1][ind].first > vp[i][j].first))
					{
						mx1 = max(mx1, dp1[i - 1][ind]);
						ind--;

					}

					mx1 = max(mx1, mx_);
					mx2 = max(mx2, mx_);

					dp1[i][j] = max(mx1 , mx2) + vp[i][j].second;

					if (i < n - 1)
					{
						dp0[i][j] = max(dp0[i][j], mx1+ vp[i][j].second);
					}

					if ((ind >= 0) and(i != n - 1))
					{
						if (vp[i - 1][ind].first == vp[i][j].first)
						{
							dp0[i][j] = max(dp1[i - 1][ind] + vp[i][j].second, dp0[i][j]);
						}
					}

					mx2 = max(mx2, dp1[i][j]);
				}

			}

			if (i < n - 1)
			{
				if (vp[i].size() > 0)
				{
					long long mx__ = 0;
					for (int j = 0; j < vp[i].size(); j++)
					{
						if (mx__ != 0)
							mx__ += vp[i][j].second;
						
						mx__ = max(mx__, dp0[i][j]);

						dp0[i][j] = mx__;
					}
				}
			}
		}
		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]);
			}
		}

		dp[i] = mx_;

		ans = max(ans, mx_);
	}

	if (n >= 4)
	{
		mx_ = max(mx_, dp[n - 4] + sum[n - 3] + sum[n - 2]);
	}
	ans = max(ans, mx_);

	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:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for (int i = 0; i < X.size(); i++)
      |                  ~~^~~~~~~~~~
fish.cpp:75:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |   for (int j = 0; j < vp[i].size(); j++)
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:94:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |      while ((ind < vp[i - 1].size()) and (vp[i - 1][ind].first < vp[i][j].first))
      |              ~~~~^~~~~~~~~~~~~~~~~~
fish.cpp:157:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  157 |      for (int j = 0; j < vp[i].size(); j++)
      |                      ~~^~~~~~~~~~~~~~
fish.cpp:172:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  172 |    for (int j = 0; j < vp[i].size(); j++)
      |                    ~~^~~~~~~~~~~~~~
fish.cpp:182:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  182 |   for (int j = 0; j < vp[i].size(); j++)
      |                   ~~^~~~~~~~~~~~~~
fish.cpp:190:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  190 |    for (int j = 0; j < vp[i - 1].size(); j++)
      |                    ~~^~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 11964 KB Output is correct
2 Correct 32 ms 13756 KB Output is correct
3 Correct 4 ms 9040 KB Output is correct
4 Correct 3 ms 9040 KB Output is correct
5 Correct 95 ms 22988 KB Output is correct
6 Correct 91 ms 25928 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 47 ms 15800 KB 1st lines differ - on the 1st token, expected: '40604614618209', found: '80901044391025'
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9040 KB Output is correct
2 Correct 4 ms 9040 KB Output is correct
3 Incorrect 23 ms 14380 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '24507256928859'
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 0 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: '258924331930'
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 0 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: '258924331930'
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 0 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: '258924331930'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9040 KB Output is correct
2 Correct 4 ms 9040 KB Output is correct
3 Incorrect 23 ms 14380 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '24507256928859'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 11964 KB Output is correct
2 Correct 32 ms 13756 KB Output is correct
3 Correct 4 ms 9040 KB Output is correct
4 Correct 3 ms 9040 KB Output is correct
5 Correct 95 ms 22988 KB Output is correct
6 Correct 91 ms 25928 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Incorrect 47 ms 15800 KB 1st lines differ - on the 1st token, expected: '40604614618209', found: '80901044391025'
9 Halted 0 ms 0 KB -