답안 #732693

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
732693 2023-04-29T07:34:55 Z math_rabbit_1028 메기 농장 (IOI22_fish) C++17
0 / 100
1000 ms 1084644 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 <= N; i++) all.push_back(t);
        //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++;
            if (ylist[i][j].first != all[t]) continue;
            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 = 0, k = 0, l = 0;
        for (int t = all.size() - 2; t >= 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++;
            if (ylist[i][j].first != all[t]) continue;
            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:55:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:65:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:75:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:84:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:92:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:104:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |         for (int t = 1; t < all.size() - 1; t++) {
      |                         ~~^~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1105 ms 1084644 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1086 ms 1060516 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1091 ms 1074720 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1089 ms 1060432 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1089 ms 1060432 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1089 ms 1060432 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1091 ms 1074720 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1105 ms 1084644 KB Time limit exceeded
2 Halted 0 ms 0 KB -