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Submission #776893

# Submission time Handle Problem Language Result Execution time Memory
776893 2023-07-08T11:21:41 Z alexander707070 Catfish Farm (IOI22_fish) C++17
52 / 100
 722 ms 224892 KB 
#include<bits/stdc++.h>
#define MAXN 3007
using namespace std;
 
int n,m,maxx;
long long pref[MAXN][MAXN],dp[MAXN][MAXN][2];
bool li[MAXN][MAXN][2];
long long prefmax[MAXN],prefmax2[MAXN];
long long suffmax[MAXN],suffmax2[MAXN];
 
long long max_weights(int N, int M,vector<int> X,vector<int> Y,vector<int> W){
    n=N; m=M;
    for(int i=0;i<m;i++){
        pref[X[i]+1][Y[i]+1]+=W[i];
    }
 
    for(int i=1;i<=n;i++){
        for(int f=1;f<=n;f++){
            pref[i][f]=pref[i][f]+pref[i][f-1];
        }
    }

    for(int pos=1;pos<=n;pos++){

        for(int last=0;last<=n;last++){
            prefmax[last]=dp[pos-1][last][1]-pref[pos][last];
            if(last>0)prefmax[last]=max(prefmax[last],prefmax[last-1]);

            prefmax2[last]=dp[pos-1][last][0];
            if(last>0)prefmax2[last]=max(prefmax2[last],prefmax2[last-1]);
        }

        for(int last=n;last>=0;last--){
            suffmax[last]=dp[pos-1][last][0]+pref[pos+1][last];
            suffmax[last]=max(suffmax[last],suffmax[last+1]);

            suffmax2[last]=dp[pos-1][last][0];
            suffmax2[last]=max(suffmax2[last],suffmax2[last+1]);
        }


        for(int last=0;last<=n;last++){
            for(int flag=0;flag<2;flag++){
                
                dp[pos][last][flag]=max(dp[pos][last][flag],prefmax[last]+pref[pos][last]);
                dp[pos][last][flag]=max(dp[pos][last][flag],prefmax2[last]);

                if(flag==0)dp[pos][last][flag]=max(dp[pos][last][flag],suffmax[last+1]-pref[pos+1][last]);
                dp[pos][last][flag]=max(dp[pos][last][flag],prefmax2[last+1]);
            }
        }
    }
 
    return dp[n][0][0];
}
 
/*
int main(){
    cout<<max_weights(5, 4, {0, 1, 4, 3}, {2, 1, 4, 3}, {5, 2, 1, 3})<<"\n";
}
*/

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 678 ms 148032 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 1 ms 340 KB Output is correct
2 Runtime error 712 ms 152044 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 722 ms 143848 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 2004 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 2 ms 2108 KB Output is correct
12 Correct 3 ms 4820 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 3 ms 4820 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 2004 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 2 ms 2108 KB Output is correct
12 Correct 3 ms 4820 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 3 ms 4820 KB Output is correct
15 Correct 3 ms 4820 KB Output is correct
16 Correct 1 ms 1096 KB Output is correct
17 Correct 13 ms 6076 KB Output is correct
18 Correct 13 ms 6612 KB Output is correct
19 Correct 14 ms 6604 KB Output is correct
20 Correct 13 ms 6612 KB Output is correct
21 Correct 12 ms 6588 KB Output is correct
22 Correct 22 ms 8392 KB Output is correct
23 Correct 5 ms 5204 KB Output is correct
24 Correct 10 ms 6012 KB Output is correct
25 Correct 3 ms 4820 KB Output is correct
26 Correct 5 ms 5192 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 2004 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 2 ms 2108 KB Output is correct
12 Correct 3 ms 4820 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 3 ms 4820 KB Output is correct
15 Correct 3 ms 4820 KB Output is correct
16 Correct 1 ms 1096 KB Output is correct
17 Correct 13 ms 6076 KB Output is correct
18 Correct 13 ms 6612 KB Output is correct
19 Correct 14 ms 6604 KB Output is correct
20 Correct 13 ms 6612 KB Output is correct
21 Correct 12 ms 6588 KB Output is correct
22 Correct 22 ms 8392 KB Output is correct
23 Correct 5 ms 5204 KB Output is correct
24 Correct 10 ms 6012 KB Output is correct
25 Correct 3 ms 4820 KB Output is correct
26 Correct 5 ms 5192 KB Output is correct
27 Correct 189 ms 212300 KB Output is correct
28 Correct 63 ms 26820 KB Output is correct
29 Correct 251 ms 224772 KB Output is correct
30 Correct 249 ms 224892 KB Output is correct
31 Correct 258 ms 224876 KB Output is correct
32 Correct 70 ms 23904 KB Output is correct
33 Correct 248 ms 224892 KB Output is correct
34 Correct 246 ms 224844 KB Output is correct
35 Correct 203 ms 216964 KB Output is correct
36 Correct 244 ms 224736 KB Output is correct

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 722 ms 143848 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 678 ms 148032 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -