oj.uz

답안 #632697

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
632697 2022-08-20T16:03:20 Z Olympia 메기 농장 (IOI22_fish) C++17
0 / 100
 796 ms 2097152 KB 
#include <bits/stdc++.h>
//#include <fish.h>
using namespace std;
int64_t max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    for (int i = 0; i < X.size(); i++) {
        X[i]++;
    }
    int my = 0;
    for (int y: Y) {
        my = max(my, y);
    }
    my ++;
    vector<pair<int,int64_t> > vec[N + 10];
    map<int,int64_t> s[N + 10];
    for (int i = 0; i < X.size(); i++) {
        vec[X[i]].push_back(make_pair(Y[i], W[i]));
        s[X[i]][Y[i]] = W[i];
    }
    int64_t pref[N + 10][my + 2];
    for (int i = 0; i <= N + 9; i++) {
        pref[i][0] = 0;
        for (int j = 1; j <= my + 1; j++) {
            pref[i][j] = pref[i][j - 1];
            if (s[i].count(j - 1)) pref[i][j] += s[i][j - 1];
        }
    }
    int64_t dp[N + 1][my + 1][3];
    for (int i = 0; i <= N; i++) {
        for (int j = 0; j <= my; j++) {
            for (int d = 0; d < 3; d++) {
                dp[i][j][d] = -1e17;
            }
        }
    }
    dp[0][0][0] = 0;
    //0 --> stagnant
    //1 --> increasing
    //2 --> decreasing
    for (int i = 1; i <= N; i++) {
        for (int p = 0; p <= my; p++) {
            dp[i][0][0] = max(dp[i][0][0], dp[i - 1][p][0]);
        }
        int64_t myMax1 = -1e17;
        int64_t myMax2 = dp[i - 1][0][0] - pref[i - 1][0];
        for (int cur = 1; cur <= my; cur++) {
            dp[i][cur][0] = max(dp[i][cur][0], max(dp[i - 1][cur][1], dp[i - 1][cur][2]));
            dp[i][cur][1] = max(dp[i][cur][1], myMax1 = max(myMax1, dp[i - 1][cur][1] - pref[i][cur] - pref[i - 1][cur]) + pref[i + 1][cur] + pref[i - 1][cur]);
            for (int d = 1; d <= 2; d++) {
                dp[i][cur][d] = max(dp[i][cur][d], myMax2 = max(myMax2, dp[i - 1][cur][0] - pref[i - 1][cur]) + pref[i - 1][cur] + pref[i + 1][cur]);
            }
        }
        int64_t myMax3 = -1e17, myMax4 = -1e17;
        for (int cur = my; cur >= 1; cur--) {
            dp[i][cur][2] = max(dp[i][cur][2], myMax4 = max(myMax4, dp[i - 1][cur][2]) - pref[i][cur] + pref[i + 1][cur]);
            for (int d = 1; d <= 2; d++) {
                dp[i][cur][d] = max(dp[i][cur][d], myMax3 = max(myMax3, dp[i - 1][cur][0]) + pref[i + 1][cur]);
            }
        }
    }
    int64_t myMax = 0;
    for (int i = 0; i <= N; i++) {
        for (int j = 0; j <= my; j++) {
            for (int d = 0; d <= 2; d++) {
                myMax = max(myMax, dp[i][j][d]);
            }
        }
    }
    return myMax;
}

Compilation message

fish.cpp: In function 'int64_t max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:5:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |     for (int i = 0; i < X.size(); i++) {
      |                     ~~^~~~~~~~~~
fish.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for (int i = 0; i < X.size(); i++) {
      |                     ~~^~~~~~~~~~

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 796 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '2', found: '4'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 12 ms 14292 KB 1st lines differ - on the 1st token, expected: '10082010', found: '20164020'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '9'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '9'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '9'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 12 ms 14292 KB 1st lines differ - on the 1st token, expected: '10082010', found: '20164020'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 796 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -