oj.uz

Submission #732708

# Submission time Handle Problem Language Result Execution time Memory
732708 2023-04-29T07:44:52 Z math_rabbit_1028 Catfish Farm (IOI22_fish) C++17
12 / 100
 610 ms 83916 KB 
#include "fish.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;

long long zero[101010], full[101010];
vector< pair<int, long long> > ylist[101010];
vector< long long > sum[101010], dp[2][101010];

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
    for (int i = 0; i < M; i++) {
        X[i] += 1;
        Y[i] += 1;
        ylist[X[i]].push_back({Y[i], 0});
        ylist[X[i] - 1].push_back({Y[i], 0});
        ylist[X[i] + 1].push_back({Y[i], 0});
    }

    for (int i = 0; i <= N + 1; i++) {
        ylist[i].push_back({0, 0});
        ylist[i].push_back({N, 0});
        sort(ylist[i].begin(), ylist[i].end());
        ylist[i].erase(unique(ylist[i].begin(), ylist[i].end()), ylist[i].end());
    }

    for (int i = 0; i < M; i++) {
        int idx = lower_bound(ylist[X[i]].begin(), ylist[X[i]].end(), make_pair(Y[i], 0LL)) - ylist[X[i]].begin();
        ylist[X[i]][idx].second = W[i];
    }

    for (int i = 0; i <= N + 1; i++) {
        sum[i].push_back(0);
        for (int j = 1; j < ylist[i].size(); j++) {
            sum[i].push_back(sum[i].back() + ylist[i][j].second);
        }
    }

    for (int i = 0; i <= N + 1; i++) {
        for (int j = 0; j < ylist[i].size(); j++) dp[0][i].push_back(0);
        for (int j = 0; j < ylist[i].size(); j++) dp[1][i].push_back(0);
    }
    for (int j = 1; j < ylist[0].size() - 1; j++) dp[0][0][j] = -1e18;
    for (int j = 1; j < ylist[0].size() - 1; j++) dp[1][0][j] = -1e18;
    full[0] = -1e18;
    for (int i = 2; i <= N + 1; i++) {
        vector<int> all;
        for (int t = 0; t < ylist[i - 2].size(); t++) all.push_back(ylist[i - 2][t].first);
        for (int t = 0; t < ylist[i - 1].size(); t++) all.push_back(ylist[i - 1][t].first);
        for (int t = 0; t < ylist[i].size(); t++) all.push_back(ylist[i][t].first);
        sort(all.begin(), all.end());
        all.erase(unique(all.begin(), all.end()), all.end());

        int j = 0, k = 0, l = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            while (ylist[i][j] < make_pair(all[t], 0LL)) j++;
            while (ylist[i - 1][k] < make_pair(all[t], 0LL)) k++;
            while (ylist[i - 2][l] < make_pair(all[t], 0LL)) l++;
            zero[i] = max(zero[i], dp[1][i - 1][k] + sum[i][j]);
        }
        zero[i] = max(zero[i], zero[i - 1]);
        zero[i] = max(zero[i], full[i - 1] + sum[i][ylist[i].size() - 1]);

        j = 0, k = 0, l = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            while (ylist[i][j] < make_pair(all[t], 0LL)) j++;
            while (ylist[i - 1][k] < make_pair(all[t], 0LL)) k++;
            while (ylist[i - 2][l] < make_pair(all[t], 0LL)) l++;
            full[i] = max(full[i], dp[0][i - 1][k] + sum[i - 1][ylist[i - 1].size() - 1] - sum[i - 1][k]);
        }
        full[i] = max(full[i], full[i - 1]);
        full[i] = max(full[i], zero[i - 2] + sum[i - 1][ylist[i - 1].size() - 1]);
        full[i] = max(full[i], full[i - 2] + sum[i - 1][ylist[i - 1].size() - 1]);
        j = 0, k = 0, l = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            while (ylist[i][j] < make_pair(all[t], 0LL)) j++;
            while (ylist[i - 1][k] < make_pair(all[t], 0LL)) k++;
            while (ylist[i - 2][l] < make_pair(all[t], 0LL)) l++;
            full[i] = max(full[i], dp[1][i - 2][l] + sum[i - 1][ylist[i - 1].size() - 1]);
        }

        long long val0 = 0, val1 = 0;
        j = 0, k = 0, l = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            while (ylist[i][j] < make_pair(all[t], 0LL)) j++;
            while (ylist[i - 1][k] < make_pair(all[t], 0LL)) k++;
            while (ylist[i - 2][l] < make_pair(all[t], 0LL)) l++;
            val0 = max(val0, dp[0][i - 1][k] - sum[i - 1][k]);
            val1 = max(val1, dp[1][i - 1][k] + sum[i][j]);
        }
        j = 0, k = 0, l = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            while (ylist[i][j] < make_pair(all[t], 0LL)) j++;
            while (ylist[i - 1][k] < make_pair(all[t], 0LL)) k++;
            while (ylist[i - 2][l] < make_pair(all[t], 0LL)) l++;
            dp[0][i][j] = max(dp[0][i][j], val0 + sum[i - 1][k]);
            dp[1][i][j] = max(dp[1][i][j], val1 - sum[i][j]);
            dp[1][i][j] = max(dp[1][i][j], full[i - 1] + sum[i][ylist[i].size() - 1] - sum[i][j]);
            dp[0][i][j] = max(dp[0][i][j], zero[i - 2] + sum[i - 1][k]);
            dp[0][i][j] = max(dp[0][i][j], full[i - 2] + sum[i - 1][ylist[i - 1].size() - 1]);
        }
        long long val2 = 0;
        j = 0, k = 0, l = 0;
        for (int t = 1; t < all.size() - 1; t++) {
            while (ylist[i][j] < make_pair(all[t], 0LL)) j++;
            while (ylist[i - 1][k] < make_pair(all[t], 0LL)) k++;
            while (ylist[i - 2][l] < make_pair(all[t], 0LL)) l++;
            val2 = max(val2, dp[1][i - 2][l]);
            dp[0][i][j] = max(dp[0][i][j], val2 + sum[i - 1][k]);
        }
        long long val3 = 0;
        j = ylist[i].size() - 1, k = ylist[i - 1].size() - 1, l = ylist[i - 2].size() - 1;
        for (int t = all.size() - 2; t >= 1; t--) {
            while (ylist[i][j - 1] > make_pair(all[t], 0LL)) j--;
            while (ylist[i - 1][k - 1] > make_pair(all[t], 0LL)) k--;
            while (ylist[i - 2][l - 1] > make_pair(all[t], 0LL)) l--;
            val3 = max(val3, dp[1][i - 2][l] + sum[i - 1][k]);
            dp[0][i][j] = max(dp[0][i][j], val3);
        }
    }
    long long res = 0;
    res = zero[N + 1];
    return res;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:33:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for (int j = 1; j < ylist[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:39:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for (int j = 0; j < ylist[i].size(); j++) dp[0][i].push_back(0);
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:40:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for (int j = 0; j < ylist[i].size(); j++) dp[1][i].push_back(0);
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for (int j = 1; j < ylist[0].size() - 1; j++) dp[0][0][j] = -1e18;
      |                     ~~^~~~~~~~~~~~~~~~~~~~~
fish.cpp:43:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for (int j = 1; j < ylist[0].size() - 1; j++) dp[1][0][j] = -1e18;
      |                     ~~^~~~~~~~~~~~~~~~~~~~~
fish.cpp:47:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         for (int t = 0; t < ylist[i - 2].size(); t++) all.push_back(ylist[i - 2][t].first);
      |                         ~~^~~~~~~~~~~~~~~~~~~~~
fish.cpp:48:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |         for (int t = 0; t < ylist[i - 1].size(); t++) all.push_back(ylist[i - 1][t].first);
      |                         ~~^~~~~~~~~~~~~~~~~~~~~
fish.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         for (int t = 0; t < ylist[i].size(); t++) all.push_back(ylist[i][t].first);
      |                         ~~^~~~~~~~~~~~~~~~~
fish.cpp:54:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:64:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:74:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:83:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:91:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:103:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 147 ms 36136 KB Output is correct
2 Correct 173 ms 41432 KB Output is correct
3 Correct 57 ms 25408 KB Output is correct
4 Correct 55 ms 25412 KB Output is correct
5 Correct 516 ms 71476 KB Output is correct
6 Correct 610 ms 83916 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Incorrect 217 ms 45280 KB 1st lines differ - on the 1st token, expected: '40604614618209', found: '80899633208367'
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 25424 KB Output is correct
2 Correct 54 ms 25388 KB Output is correct
3 Correct 109 ms 32588 KB Output is correct
4 Correct 101 ms 31848 KB Output is correct
5 Correct 179 ms 42284 KB Output is correct
6 Correct 188 ms 42268 KB Output is correct
7 Correct 185 ms 42324 KB Output is correct
8 Correct 180 ms 42316 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9732 KB Output is correct
8 Correct 6 ms 9776 KB Output is correct
9 Correct 6 ms 9812 KB Output is correct
10 Incorrect 7 ms 10068 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '801326851508'
11 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9732 KB Output is correct
8 Correct 6 ms 9776 KB Output is correct
9 Correct 6 ms 9812 KB Output is correct
10 Incorrect 7 ms 10068 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '801326851508'
11 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9732 KB Output is correct
8 Correct 6 ms 9776 KB Output is correct
9 Correct 6 ms 9812 KB Output is correct
10 Incorrect 7 ms 10068 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '801326851508'
11 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 25424 KB Output is correct
2 Correct 54 ms 25388 KB Output is correct
3 Correct 109 ms 32588 KB Output is correct
4 Correct 101 ms 31848 KB Output is correct
5 Correct 179 ms 42284 KB Output is correct
6 Correct 188 ms 42268 KB Output is correct
7 Correct 185 ms 42324 KB Output is correct
8 Correct 180 ms 42316 KB Output is correct
9 Correct 230 ms 51936 KB Output is correct
10 Correct 121 ms 27280 KB Output is correct
11 Incorrect 253 ms 44736 KB 1st lines differ - on the 1st token, expected: '72889508713304', found: '72890221687387'
12 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 147 ms 36136 KB Output is correct
2 Correct 173 ms 41432 KB Output is correct
3 Correct 57 ms 25408 KB Output is correct
4 Correct 55 ms 25412 KB Output is correct
5 Correct 516 ms 71476 KB Output is correct
6 Correct 610 ms 83916 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Incorrect 217 ms 45280 KB 1st lines differ - on the 1st token, expected: '40604614618209', found: '80899633208367'
9 Halted 0 ms 0 KB -