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답안 #1075720

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1075720 2024-08-26T08:48:56 Z Muhammad_Aneeq 메기 농장 (IOI22_fish) C++17
18 / 100
 71 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

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 2140 KB Output is correct
2 Correct 21 ms 2624 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 66 ms 7248 KB Output is correct
6 Correct 71 ms 7276 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 29 ms 6172 KB Output is correct
3 Correct 55 ms 7252 KB Output is correct
4 Correct 15 ms 2136 KB Output is correct
5 Correct 17 ms 2652 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 15 ms 4444 KB Output is correct
13 Correct 19 ms 5020 KB Output is correct
14 Correct 17 ms 4460 KB Output is correct
15 Correct 19 ms 4700 KB Output is correct
16 Correct 17 ms 4460 KB Output is correct
17 Correct 19 ms 4816 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 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 10 ms 3764 KB Output is correct
5 Correct 18 ms 6328 KB Output is correct
6 Correct 15 ms 5468 KB Output is correct
7 Correct 21 ms 6236 KB Output is correct
8 Correct 22 ms 6068 KB Output is correct

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 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

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 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

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 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

# 결과 실행 시간 메모리 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 10 ms 3764 KB Output is correct
5 Correct 18 ms 6328 KB Output is correct
6 Correct 15 ms 5468 KB Output is correct
7 Correct 21 ms 6236 KB Output is correct
8 Correct 22 ms 6068 KB Output is correct
9 Incorrect 17 ms 3920 KB 1st lines differ - on the 1st token, expected: '99999', found: '0'
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 2140 KB Output is correct
2 Correct 21 ms 2624 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 66 ms 7248 KB Output is correct
6 Correct 71 ms 7276 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 29 ms 6172 KB Output is correct
9 Correct 55 ms 7252 KB Output is correct
10 Correct 15 ms 2136 KB Output is correct
11 Correct 17 ms 2652 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 15 ms 4444 KB Output is correct
19 Correct 19 ms 5020 KB Output is correct
20 Correct 17 ms 4460 KB Output is correct
21 Correct 19 ms 4700 KB Output is correct
22 Correct 17 ms 4460 KB Output is correct
23 Correct 19 ms 4816 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 10 ms 3764 KB Output is correct
28 Correct 18 ms 6328 KB Output is correct
29 Correct 15 ms 5468 KB Output is correct
30 Correct 21 ms 6236 KB Output is correct
31 Correct 22 ms 6068 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 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 0 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 -