oj.uz

Submission #1075750

# Submission time Handle Problem Language Result Execution time Memory
1075750 2024-08-26T09:00:12 Z Muhammad_Aneeq Catfish Farm (IOI22_fish) C++17
18 / 100
 58 ms 7276 KB 
#include <vector>
using namespace std;
long long max_weights(int N, int M, vector<int> X, vector<int> Y,vector<int> W)
{
    bool subt1=1,subt2=1,subt3=1,subt4=(N<=300);
    for (int i=0;i<M;i++)
    {
        if (X[i]%2)
            subt1=0;
        if (X[i]>1)
            subt2=0;
        if (Y[i]!=0)
            subt3=0;
        if (Y[i]>8)
            subt4=0;
    }
    if (subt1)
    {
        long long sm=0;
        for (int i=0;i<M;i++)
            sm+=W[i];
        return sm;
    }
    if (subt2)
    {
        long long sm[N]={};
        long long val[N][2]={};
        for (int i=0;i<M;i++)
            val[Y[i]][X[i]]=W[i];
        sm[0]=val[0][1];
        for (int i=1;i<N;i++)
            sm[i]=sm[i-1]+val[i][1];
        long long ans=sm[N-1];
        long long x=0;
        for (int i=0;i<N;i++)
        {
            x+=val[i][0];
            if (N>2)
                ans=max(ans,x+sm[N-1]-sm[i]);
        }
        ans=max(ans,x);
        return ans;
    }
    if (subt3)
    {
        long long dp[N][2]={};
        int val[N]={};
        for (int i=0;i<M;i++)
            val[X[i]]=W[i];
        dp[0][0]=0,dp[0][1]=val[0];
        long long ans=0;
        long long mx=0;
        for (int i=1;i<N;i++)
        {
            if (i>1)
                dp[i][0]=mx+val[i];
            if (i<N-1)
                dp[i][1]=max(dp[i][0],dp[i-1][0]+val[i]);
            mx=max(mx,max(dp[i-1][0],dp[i-1][1]));
            ans=max(ans,max(dp[i][0],dp[i][1]));
        }
        return ans;
    }
    if (N<=3000)
    {
        vector<vector<vector<long long>>>dp(2,vector<vector<long long>>(N+10,vector<long long>(N+10,0)));
        long long val[N+10][N+10]={};
        for (int i=0;i<M;i++)
            val[X[i]+1][Y[i]+1]=W[i];
        long long pre[N][N]={};
        for (int i=0;i<=N;i++)
        {
            pre[i][0]=val[i][0];
            for (int j=1;j<=N;j++)
                pre[i][j]=pre[i][j-1]+val[i][j];
        }
        long long ans=0;
        for (int i=0;i<=N;i++)
            dp[0][0][i]=dp[1][0][i]=dp[0][i][0]=dp[1][i][0]=-1e17;;
        for (int i=1;i<=N;i++)
        {
            for (int j=0;j<=N;j++)
            {
                for (int k=0;k<=N;k++)
                {
                    if (j<k)
                    {
                        dp[0][i][j]=max(dp[0][i][j],dp[0][i-1][k]+pre[i][k]-pre[i][j]);
                        dp[1][i][j]=max(dp[1][i][j],dp[0][i-1][k]+pre[i][k]-pre[i][j]);
                    }
                    else
                    {
                        dp[0][i][j]=max(dp[0][i][j],dp[1][i-1][k]+pre[i-1][j]-pre[i-1][k]);
                        dp[1][i][j]=max(dp[1][i][j],dp[1][i-1][k]+pre[i-1][j]-pre[i-1][k]);
                    }
                }
                dp[1][i][j]=max(dp[1][i][j],dp[0][i-1][j]+pre[i][j]);
            }
        }
        for (int i=0;i<=N;i++)
            for (int j=0;j<=N;j++)
                ans=max(ans,max(dp[0][i][j],dp[1][i][j]));
        return ans;
    }
    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:5:34: warning: variable 'subt4' set but not used [-Wunused-but-set-variable]
    5 |     bool subt1=1,subt2=1,subt3=1,subt4=(N<=300);
      |                                  ^~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 2140 KB Output is correct
2 Correct 17 ms 2632 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 55 ms 7256 KB Output is correct
6 Correct 58 ms 7276 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 37 ms 6168 KB Output is correct
3 Correct 39 ms 7260 KB Output is correct
4 Correct 14 ms 2136 KB Output is correct
5 Correct 16 ms 2636 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 15 ms 4440 KB Output is correct
13 Correct 17 ms 4948 KB Output is correct
14 Correct 15 ms 4444 KB Output is correct
15 Correct 16 ms 4696 KB Output is correct
16 Correct 17 ms 4212 KB Output is correct
17 Correct 31 ms 4696 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 2140 KB Output is correct
3 Correct 11 ms 3420 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 17 ms 4696 KB Output is correct
6 Correct 15 ms 4680 KB Output is correct
7 Correct 17 ms 4700 KB Output is correct
8 Correct 21 ms 4672 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 6 ms 1372 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '326664473535'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 6 ms 1372 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '326664473535'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 6 ms 1372 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '326664473535'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 2140 KB Output is correct
3 Correct 11 ms 3420 KB Output is correct
4 Correct 8 ms 3164 KB Output is correct
5 Correct 17 ms 4696 KB Output is correct
6 Correct 15 ms 4680 KB Output is correct
7 Correct 17 ms 4700 KB Output is correct
8 Correct 21 ms 4672 KB Output is correct
9 Incorrect 14 ms 2652 KB 1st lines differ - on the 1st token, expected: '99999', found: '0'
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 2140 KB Output is correct
2 Correct 17 ms 2632 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 55 ms 7256 KB Output is correct
6 Correct 58 ms 7276 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 37 ms 6168 KB Output is correct
9 Correct 39 ms 7260 KB Output is correct
10 Correct 14 ms 2136 KB Output is correct
11 Correct 16 ms 2636 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 15 ms 4440 KB Output is correct
19 Correct 17 ms 4948 KB Output is correct
20 Correct 15 ms 4444 KB Output is correct
21 Correct 16 ms 4696 KB Output is correct
22 Correct 17 ms 4212 KB Output is correct
23 Correct 31 ms 4696 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 2140 KB Output is correct
26 Correct 11 ms 3420 KB Output is correct
27 Correct 8 ms 3164 KB Output is correct
28 Correct 17 ms 4696 KB Output is correct
29 Correct 15 ms 4680 KB Output is correct
30 Correct 17 ms 4700 KB Output is correct
31 Correct 21 ms 4672 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Incorrect 6 ms 1372 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '326664473535'
41 Halted 0 ms 0 KB -