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Submission #1075733

# Submission time Handle Problem Language Result Execution time Memory
1075733 2024-08-26T08:54:12 Z Muhammad_Aneeq Catfish Farm (IOI22_fish) C++17
18 / 100
 61 ms 12624 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 pre[N+10][N+10]={};
        for (int i=0;i<M;i++)
            pre[X[i]+1][Y[i]+1]=W[i];
        for (int i=1;i<=N;i++)
            for (int j=1;j<=N;j++)
                pre[i][j]+=pre[i][j-1];
        long long ans=0;
        for (int i=1;i<=N;i++)
            dp[0][0][i]=dp[1][0][i]=-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++)
                ans=max(ans,max(dp[0][N][i],dp[1][N][i]));
        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 3672 KB Output is correct
2 Correct 18 ms 4188 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 61 ms 12340 KB Output is correct
6 Correct 60 ms 12624 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 32 ms 8576 KB Output is correct
3 Correct 39 ms 10312 KB Output is correct
4 Correct 14 ms 3536 KB Output is correct
5 Correct 17 ms 4168 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 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 360 KB Output is correct
12 Correct 15 ms 5724 KB Output is correct
13 Correct 21 ms 6644 KB Output is correct
14 Correct 25 ms 5716 KB Output is correct
15 Correct 19 ms 6224 KB Output is correct
16 Correct 16 ms 5724 KB Output is correct
17 Correct 17 ms 6336 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 2140 KB Output is correct
3 Correct 11 ms 4184 KB Output is correct
4 Correct 9 ms 3676 KB Output is correct
5 Correct 18 ms 6056 KB Output is correct
6 Correct 15 ms 5464 KB Output is correct
7 Correct 19 ms 6236 KB Output is correct
8 Correct 20 ms 6236 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 344 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 1116 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 344 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 344 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 1116 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 344 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 344 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 1116 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 344 KB Output is correct
2 Correct 1 ms 2140 KB Output is correct
3 Correct 11 ms 4184 KB Output is correct
4 Correct 9 ms 3676 KB Output is correct
5 Correct 18 ms 6056 KB Output is correct
6 Correct 15 ms 5464 KB Output is correct
7 Correct 19 ms 6236 KB Output is correct
8 Correct 20 ms 6236 KB Output is correct
9 Incorrect 16 ms 3900 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 3672 KB Output is correct
2 Correct 18 ms 4188 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 61 ms 12340 KB Output is correct
6 Correct 60 ms 12624 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 32 ms 8576 KB Output is correct
9 Correct 39 ms 10312 KB Output is correct
10 Correct 14 ms 3536 KB Output is correct
11 Correct 17 ms 4168 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 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 360 KB Output is correct
18 Correct 15 ms 5724 KB Output is correct
19 Correct 21 ms 6644 KB Output is correct
20 Correct 25 ms 5716 KB Output is correct
21 Correct 19 ms 6224 KB Output is correct
22 Correct 16 ms 5724 KB Output is correct
23 Correct 17 ms 6336 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 2140 KB Output is correct
26 Correct 11 ms 4184 KB Output is correct
27 Correct 9 ms 3676 KB Output is correct
28 Correct 18 ms 6056 KB Output is correct
29 Correct 15 ms 5464 KB Output is correct
30 Correct 19 ms 6236 KB Output is correct
31 Correct 20 ms 6236 KB Output is correct
32 Correct 0 ms 344 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 344 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 1116 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '326664473535'
41 Halted 0 ms 0 KB -