oj.uz

Submission #626844

# Submission time Handle Problem Language Result Execution time Memory
626844 2022-08-11T21:34:53 Z welleyth Catfish Farm (IOI22_fish) C++17
9 / 100
 478 ms 84460 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;

constexpr int NN = 1e5 + 10;
constexpr long long INF = (long long)2e18 + 10;

#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
//#pragma GCC target ("avx2")

int cnt[NN];
vector<pair<int,long long>> val[NN];
vector<int> possibleLen[NN];

long long getSum(int x,int r){
    if(val[x].empty())
        return 0;
    if(val[x][0].first >= r)
        return 0;
    return (upper_bound(val[x].begin(),val[x].end(),make_pair(r-1,INF))-1)->second;
}

mt19937 rnd(time(nullptr));

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
    long long dp[2][333][333];
    for(int i = 0; i < 2; i++){
        for(int j = 0; j < 333; j++){
            for(int t = 0; t < 333; t++){
                dp[i][j][t] = 0;
            }
        }
    }
    set<int> st[N+22];
    for(int i = 0; i < M; i++){
//        g[X[i]+2][Y[i]] = W[i];
        val[X[i]+2].push_back(make_pair(Y[i],W[i]));
        for(int j = max(2,X[i]+1); j <= X[i]+3; j++){
            st[j].insert(Y[i]+1);
        }
    }

    for(int i = 0; i < N+2; i++){
        st[i].insert(0);
        st[i].insert(N);
        possibleLen[i] = vector<int>(st[i].begin(),st[i].end());
        sort(val[i].begin(),val[i].end());
        for(int j = 1; j < val[i].size(); j++){
            val[i][j].second += val[i][j-1].second;
        }
    }

//    cerr << getSum(2,3) << "\n";
//    return 0;

    long long ans = 0;

    for(int i = 2; i < N+2; i++){
        int pr[2];
        for(pr[1] = 0; pr[1] < possibleLen[i-2].size(); pr[1]++){
            for(int cur = 0; cur < possibleLen[i].size(); cur++){
                int lcur = possibleLen[i][cur];
                int l1 = possibleLen[i-2][pr[1]];
                pr[0] = lower_bound(possibleLen[i-1].begin(),possibleLen[i-1].end(),min(l1,lcur)-1) - possibleLen[i-1].begin();
                pr[0] = max(0,pr[0]-2);
                pr[0] = min((int)possibleLen[i-1].size()-1,pr[0]);
                for(; pr[0] < possibleLen[i-1].size(); pr[0]++){
                    int l0 = possibleLen[i-1][pr[0]];
                    if(lcur <= l0){
                        dp[1][pr[0]][cur] = max(dp[1][pr[0]][cur],dp[0][pr[1]][pr[0]] + getSum(i+1,lcur) - getSum(i,lcur));
                    } else if(lcur <= l1){
                        dp[1][pr[0]][cur] = max(dp[1][pr[0]][cur],dp[0][pr[1]][pr[0]] + getSum(i+1,lcur) - getSum(i,l0));
                    } else {
                        dp[1][pr[0]][cur] = max(dp[1][pr[0]][cur],dp[0][pr[1]][pr[0]] + getSum(i+1,lcur) - getSum(i,l0)
                                            + max(0ll,getSum(i-1,lcur)-getSum(i-1,l0)) - max(0ll,getSum(i-1,l1)-getSum(i-1,l0)));
                    }
                    ans = max(ans,dp[1][pr[0]][cur]);
//                    cerr << i << " " << l1 << " " << l0 << " " << lcur << " " << dp[1][pr[0]][cur] << "\n";
//                    if(dp[0][pr[0]][cur] == 0)
//                        continue;
                }
            }
        }
        for(pr[0] = 0; pr[0] < possibleLen[i-1].size(); pr[0]++){
            for(pr[1] = 0; pr[1] < possibleLen[i-2].size(); pr[1]++){
                dp[0][pr[1]][pr[0]] = 0;
            }
        }
        for(pr[0] = 0; pr[0] < possibleLen[i-1].size(); pr[0]++){
            for(int cur = 0; cur < possibleLen[i].size(); cur++){
                dp[0][pr[0]][cur] = dp[1][pr[0]][cur];
            }
        }
        for(pr[0] = 0; pr[0] < possibleLen[i-1].size(); pr[0]++){
            for(int cur = 0; cur < possibleLen[i].size(); cur++){
                dp[1][pr[0]][cur] = 0;
            }
        }
    }
//    for(int i = 0; i < N+2; i++){
//        for(int j = 0; j < 10; j++){
//            for(int t = 0; t < 10; t++){
//                ans = max(ans,dp[i][j][t]);
//            }
//        }
//    }

    return ans;
}
/**
10000 2
0 0 1
0 1 1

5 4
0 2 5
1 1 2
4 4 1
3 3 3


**/

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:49:26: 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 j = 1; j < val[i].size(); j++){
      |                        ~~^~~~~~~~~~~~~~~
fish.cpp:61:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |         for(pr[1] = 0; pr[1] < possibleLen[i-2].size(); pr[1]++){
      |                        ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:62:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |             for(int cur = 0; cur < possibleLen[i].size(); cur++){
      |                              ~~~~^~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:68:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |                 for(; pr[0] < possibleLen[i-1].size(); pr[0]++){
      |                       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:85:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |         for(pr[0] = 0; pr[0] < possibleLen[i-1].size(); pr[0]++){
      |                        ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:86:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |             for(pr[1] = 0; pr[1] < possibleLen[i-2].size(); pr[1]++){
      |                            ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:90:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |         for(pr[0] = 0; pr[0] < possibleLen[i-1].size(); pr[0]++){
      |                        ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:91:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |             for(int cur = 0; cur < possibleLen[i].size(); cur++){
      |                              ~~~~^~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:95:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |         for(pr[0] = 0; pr[0] < possibleLen[i-1].size(); pr[0]++){
      |                        ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:96:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |             for(int cur = 0; cur < possibleLen[i].size(); cur++){
      |                              ~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 140 ms 67864 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6740 KB Output is correct
2 Runtime error 277 ms 84460 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 23892 KB Output is correct
2 Correct 35 ms 23936 KB Output is correct
3 Correct 87 ms 27944 KB Output is correct
4 Correct 72 ms 27920 KB Output is correct
5 Correct 144 ms 34140 KB Output is correct
6 Correct 135 ms 34080 KB Output is correct
7 Correct 138 ms 34188 KB Output is correct
8 Correct 141 ms 34084 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6740 KB Output is correct
2 Correct 4 ms 6740 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6620 KB Output is correct
5 Correct 3 ms 6740 KB Output is correct
6 Correct 3 ms 6740 KB Output is correct
7 Correct 3 ms 6612 KB Output is correct
8 Correct 3 ms 6740 KB Output is correct
9 Incorrect 4 ms 6820 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '215895364602'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6740 KB Output is correct
2 Correct 4 ms 6740 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6620 KB Output is correct
5 Correct 3 ms 6740 KB Output is correct
6 Correct 3 ms 6740 KB Output is correct
7 Correct 3 ms 6612 KB Output is correct
8 Correct 3 ms 6740 KB Output is correct
9 Incorrect 4 ms 6820 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '215895364602'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6740 KB Output is correct
2 Correct 4 ms 6740 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6620 KB Output is correct
5 Correct 3 ms 6740 KB Output is correct
6 Correct 3 ms 6740 KB Output is correct
7 Correct 3 ms 6612 KB Output is correct
8 Correct 3 ms 6740 KB Output is correct
9 Incorrect 4 ms 6820 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '215895364602'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 23892 KB Output is correct
2 Correct 35 ms 23936 KB Output is correct
3 Correct 87 ms 27944 KB Output is correct
4 Correct 72 ms 27920 KB Output is correct
5 Correct 144 ms 34140 KB Output is correct
6 Correct 135 ms 34080 KB Output is correct
7 Correct 138 ms 34188 KB Output is correct
8 Correct 141 ms 34084 KB Output is correct
9 Correct 302 ms 43496 KB Output is correct
10 Correct 150 ms 24768 KB Output is correct
11 Correct 309 ms 42932 KB Output is correct
12 Correct 3 ms 6612 KB Output is correct
13 Correct 3 ms 6740 KB Output is correct
14 Correct 3 ms 6740 KB Output is correct
15 Correct 3 ms 6740 KB Output is correct
16 Correct 3 ms 6740 KB Output is correct
17 Correct 3 ms 6740 KB Output is correct
18 Correct 35 ms 23892 KB Output is correct
19 Correct 35 ms 23892 KB Output is correct
20 Correct 35 ms 23848 KB Output is correct
21 Correct 37 ms 23960 KB Output is correct
22 Incorrect 478 ms 43176 KB 1st lines differ - on the 1st token, expected: '45561826463480', found: '45481748531582'
23 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 140 ms 67864 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -