oj.uz

Submission #1042298

# Submission time Handle Problem Language Result Execution time Memory
1042298 2024-08-02T19:53:07 Z VMaksimoski008 Catfish Farm (IOI22_fish) C++17
9 / 100
 1000 ms 67080 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
 
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    for(int i=0; i<M; i++) X[i]++, Y[i]++;
    map<int, int> mp[N+5];
    for(int i=0; i<M; i++) mp[X[i]][Y[i]] = W[i];
    ll ans = 0;

    vector<pair<int, int> > vec[N+5];
    vector<int> pos[N+5], SZ(N+5);
    for(int i=1; i<=N; i++) vec[i].push_back({ 0, 0 });
    for(int i=0; i<M; i++) vec[X[i]].push_back({ Y[i], W[i] });
    for(int i=1; i<=N; i++) {
        set<int> st;
        st.insert(0);
        for(auto &x : vec[i-1]) st.insert(x.first);
        for(auto &x : vec[i]) st.insert(x.first);
        for(auto &x : vec[i+1]) st.insert(x.first);
        for(auto &x : st) pos[i].push_back(x);
        sort(vec[i].begin(), vec[i].end());
        // cout << i << ": ";
        // for(int &x : pos[i]) cout << x << " ";
        // cout << '\n';
    }

    vector<vector<ll> > pref(N+5);
    vector<vector<vector<ll> > > dp(N+5);
    for(int i=1; i<=N; i++) {
        SZ[i] = pos[i].size() - 1;
        pref[i].resize(SZ[i] + 1);
        dp[i].resize(SZ[i] + 1, vector<ll>(2));
        for(int j=1; j<=SZ[i]; j++) pref[i][j] = pref[i][j-1] + mp[i][pos[i][j]];
        // cout << i << ": ";
        // for(ll &x : pref[i]) cout << x << " ";
        // cout << '\n';
    }

    for(int i=2; i<=N; i++) {
        for(int j=0; j<=SZ[i]; j++) {
            for(int k=0; k<=SZ[i-1]; k++) {
                if(pos[i][j] >= pos[i-1][k]) {
                    int p = lower_bound(pos[i-1].begin(), pos[i-1].end(), pos[i][j]) - pos[i-1].begin();
                    dp[i][j][1] = max(dp[i][j][1], dp[i-1][k][1] + pref[i-1][p] - pref[i-1][k]);
                }

                if(pos[i][j] <= pos[i-1][k]) {
                    int p = lower_bound(pos[i].begin(), pos[i].end(), pos[i-1][k]) - pos[i].begin();
                    dp[i][j][0] = max(dp[i][j][0], max(dp[i-1][k][0], dp[i-1][k][1]) + pref[i][p] - pref[i][j]);
                }
            }

            if(i < 3) continue;
            for(int k=0; k<=SZ[i-2]; k++) {
                int p1 = lower_bound(pos[i-1].begin(), pos[i-1].end(), pos[i][j]) - pos[i-1].begin();
                int p2 = lower_bound(pos[i-1].begin(), pos[i-1].end(), pos[i-2][k]) - pos[i-1].begin();
                dp[i][j][0] = max(dp[i][j][0], max(dp[i-2][k][0], dp[i-2][k][1]) + max(pref[i-1][p1], pref[i-1][p2]));
                dp[i][j][1] = max(dp[i][j][1], max(dp[i-2][k][0], dp[i-2][k][1]) + max(pref[i-1][p1], pref[i-1][p2]));
            }
        }
    }

    for(int i=1; i<=N; i++) {
        for(int j=0; j<=SZ[i]; j++) {
            if(pref[i+1].empty()) ans = max({ ans, dp[i][j][0], dp[i][j][1] });
            else {
                int p = upper_bound(pos[i+1].begin(), pos[i+1].end(), pos[i][j]) - pos[i+1].begin() - 1;
                ans = max(ans, max(dp[i][j][0], dp[i][j][1]) + pref[i+1][p]);
            }
        }
    }
    return ans;
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1093 ms 49736 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Execution timed out 1088 ms 64796 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 30552 KB Output is correct
2 Correct 33 ms 30564 KB Output is correct
3 Correct 61 ms 36180 KB Output is correct
4 Correct 54 ms 36688 KB Output is correct
5 Correct 90 ms 45336 KB Output is correct
6 Correct 117 ms 44628 KB Output is correct
7 Correct 85 ms 45396 KB Output is correct
8 Correct 89 ms 45244 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '3', found: '34'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '3', found: '34'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '3', found: '34'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 30552 KB Output is correct
2 Correct 33 ms 30564 KB Output is correct
3 Correct 61 ms 36180 KB Output is correct
4 Correct 54 ms 36688 KB Output is correct
5 Correct 90 ms 45336 KB Output is correct
6 Correct 117 ms 44628 KB Output is correct
7 Correct 85 ms 45396 KB Output is correct
8 Correct 89 ms 45244 KB Output is correct
9 Incorrect 178 ms 67080 KB 1st lines differ - on the 1st token, expected: '99999', found: '200027'
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1093 ms 49736 KB Time limit exceeded
2 Halted 0 ms 0 KB -