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Submission #627181

# Submission time Handle Problem Language Result Execution time Memory
627181 2022-08-12T10:45:46 Z typ_ik Catfish Farm (IOI22_fish) C++17
3 / 100
 82 ms 7260 KB 
#include <bits/stdc++.h>

#define all(x) (x).begin(), (x).end()

using namespace std;

long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    int block1 = 0;
    for (auto c : X) block1 += (c & 1 ^ 1);
    if (block1 == M)
        return accumulate(all(W), 0ll);

    long long dp[N][2];
    for (int i = 0; i < N; i++)
        for (int j : {0, 1})
            dp[i][j] = 0;

    long long has[N + 1];
    for (int i = 0; i <= N; i++)
        has[i] = 0;
    for (int i = 0; i < M; i++)
        has[X[i]] = W[i];

    dp[0][1] = has[0];
    for (int i = 1; i < N; i++) {
        long long over2 = -1;
        if (i > 1) over2 = max(over2, dp[i - 2][0] + has[i - 1]);
        if (i > 1) over2 = max(over2, dp[i - 2][1]);
        dp[i][1] = max(over2, dp[i - 1][1] - has[i]);
        dp[i][0] = max(dp[i-1][1], dp[i-1][0]);
    }

    return max(dp[N - 1][0], dp[N - 1][1]);
}

//main() {
//    int N = 10, M = 4;
//    vector <int> X = {0, 5, 7, 4};
//    vector <int> Y = {0, 0, 0, 0};
//    vector <int> W = {10, 5, 3, 6};
//    cout << max_weights(N, M, X, Y, W) << '\n';
//}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:9:35: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
    9 |     for (auto c : X) block1 += (c & 1 ^ 1);
      |                                 ~~^~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2124 KB Output is correct
2 Correct 25 ms 2636 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 82 ms 7260 KB Output is correct
6 Correct 76 ms 7244 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 2 ms 2644 KB 1st lines differ - on the 1st token, expected: '882019', found: '0'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 2 ms 2644 KB 1st lines differ - on the 1st token, expected: '882019', found: '0'
3 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2124 KB Output is correct
2 Correct 25 ms 2636 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 82 ms 7260 KB Output is correct
6 Correct 76 ms 7244 KB Output is correct
7 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '2', found: '1'
8 Halted 0 ms 0 KB -