oj.uz

Submission #626857

# Submission time Handle Problem Language Result Execution time Memory
626857 2022-08-11T21:48:49 Z ionan6ix Catfish Farm (IOI22_fish) C++17
9 / 100
 91 ms 7264 KB 
#include "fish.h"

#include <vector>
#include<algorithm>
using namespace std;

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {

    bool flag = true;

    for(auto it:X)
        if(it%2)
        {
            flag = false;
            break;
        }

    if(flag)
    {
        long long sol = 0;
        for(auto it:W)
            sol+=it;

        return sol;
    }

    flag = true;

    for(auto it:X)
        if(it>1)
        {
            flag = false;
            break;
        }

    if(flag)
    {
        std::vector<pair<int,int> > y0;
        std::vector<pair<int,int> > y1;

        int sz = X.size();

        for(int i=0;i<M;i++)
            if(X[i]==0) y0.emplace_back(Y[i],W[i]);
                else y1.emplace_back(Y[i],W[i]);

        std::sort(y0.begin(),y0.end());
        std::sort(y1.begin(),y1.end());

        if(N==2)
        {
            //efectiv...

            long long sum0=0LL;
            long long sum1=0LL;

            for(auto it:y0)
                sum0+=1LL*it.second;

            for(auto it:y1)
                sum1+=1LL*it.second;

            return max(sum0,sum1);
        }
        long long sol = 0LL;
        long long sum = 0LL;

        for(auto it:y1)
            sum += 1LL*it.second;

        sol = sum;

        /**
         * Pana la un anumit punct luam din 0, apoi din 1
         */

        int pnt0 = -1;
        int pnt1 = 0;
        long long sum0 = 0;
        for(int i=0;i<(int)y0.size();i++)
        {
            pnt0++;
            sum0 += 1LL * y0[i].second;

            while(pnt1<(int)y1.size() && y1[pnt1].first<=y0[i].first)
            {
                sum -= 1LL * y1[pnt1].second;
                pnt1++;
            }
            sol = max(sol,sum+sum0);
        }
        sol = max(sol,sum+sum0);
        sum0 = 0LL;
        for(auto it:y0)
            sum0+=1LL*it.second;

        sol = max(sol,sum0);


        return sol;
    }

    flag = true;

    for(auto it:Y)
        if(it!=0)
        {
            flag = false;
            break;
        }

    if(flag)
    {

        vector<vector<long long> > dp;

        dp.resize(N+5);

        for(int i = 0;i<N;i++)
            dp[i].resize(2);

        dp[0][0] = 0;
        dp[0][1] = 0;

        vector<int> repr;
        repr.resize(N+5);

        for(int i = 0;i<M;i++)
            repr[X[i]] = W[i];

        dp[1][1] = repr[0];
        dp[1][0] = repr[1];

        for(int i=2;i<N;i++)
        {
            dp[i][0] = max(dp[i-1][1]+1LL*repr[i],dp[i-1][0]);
            dp[i][1] = max(dp[i-2][0],max(dp[i-2][1]+1LL*repr[i-1],dp[i-2][0]+1LL*repr[i-1]));
        }

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

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:42:13: warning: unused variable 'sz' [-Wunused-variable]
   42 |         int sz = X.size();
      |             ^~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2132 KB Output is correct
2 Correct 27 ms 2628 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 87 ms 7264 KB Output is correct
6 Correct 91 ms 7256 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 60 ms 5684 KB Output is correct
3 Correct 82 ms 6728 KB Output is correct
4 Correct 23 ms 2140 KB Output is correct
5 Correct 27 ms 2508 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 30 ms 3276 KB Output is correct
13 Correct 35 ms 3788 KB Output is correct
14 Correct 31 ms 3064 KB Output is correct
15 Correct 35 ms 3408 KB Output is correct
16 Correct 29 ms 3180 KB Output is correct
17 Correct 32 ms 3276 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 7 ms 6100 KB Output is correct
3 Incorrect 20 ms 6740 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21049836049923'
4 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: '0'
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: '0'
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: '0'
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 Correct 7 ms 6100 KB Output is correct
3 Incorrect 20 ms 6740 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21049836049923'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2132 KB Output is correct
2 Correct 27 ms 2628 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 87 ms 7264 KB Output is correct
6 Correct 91 ms 7256 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 60 ms 5684 KB Output is correct
9 Correct 82 ms 6728 KB Output is correct
10 Correct 23 ms 2140 KB Output is correct
11 Correct 27 ms 2508 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 30 ms 3276 KB Output is correct
19 Correct 35 ms 3788 KB Output is correct
20 Correct 31 ms 3064 KB Output is correct
21 Correct 35 ms 3408 KB Output is correct
22 Correct 29 ms 3180 KB Output is correct
23 Correct 32 ms 3276 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 7 ms 6100 KB Output is correct
26 Incorrect 20 ms 6740 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21049836049923'
27 Halted 0 ms 0 KB -