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Submission #580347

# Submission time Handle Problem Language Result Execution time Memory
580347 2022-06-21T06:17:27 Z 반딧불(#8355) Uplifting Excursion (BOI22_vault) C++17
5 / 100
 5000 ms 16176 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
const int LIM = 505000;
const int LIM2 = LIM+LIM;

void imp(){
    puts("impossible");
    exit(0);
}

int n, k;
int arr[702];
int DP[2][LIM2+2];
int dq1[LIM2+2];
int dq2[LIM2+2];
int fr, sz;

int main(){
    scanf("%d %d", &n, &k);
    for(int i=0; i<=n+n; i++) scanf("%d", &arr[i]);
    if(k<=-LIM || k>=LIM) imp();
    for(int i=0; i<=LIM2; i++) DP[0][i] = DP[1][i] = -1e9;
    DP[1][LIM] = 0;

    for(int i=0; i<=n+n; i++){ /// ����ġ: i+n
        int b = i%2;
        if(i>n){ /// ���� ����ġ
            int ri = i-n;
            for(int s=0; s<i+ri; s++){
                fr=sz=0;
                for(int j=s, p=0; j<=LIM2; j+=ri, p++){
                    DP[b][j] = max(DP[b][j], DP[!b][j]);
                    while(fr!=sz && dq2[fr] < p) fr++;
                    int nf = DP[!b][j]-p;
                    while(fr!=sz && dq1[sz-1] < nf) sz--;
                    dq1[sz] = nf;
                    dq2[sz++] = p+arr[i];
                    DP[b][j] = max(DP[b][j], dq1[fr] + p);
                }
            }
        }
        else if(i==n){
            for(int j=0; j<=LIM2; j++) DP[b][j] = max(DP[b][j], DP[!b][j]) + arr[i];
        }
        else{
            int ri = n-i;
            for(int s=0; s<i+ri; s++){
                fr=sz=0;
                for(int j=LIM2-s, p=0; j>=0; j-=ri, p++){
                    DP[b][j] = max(DP[b][j], DP[!b][j]);
                    while(fr!=sz && dq2[fr] < p) fr++;
                    int nf = DP[!b][j]-p;
                    while(fr!=sz && dq1[sz-1] < nf) sz--;
                    dq1[sz] = nf;
                    dq2[sz++] = p+arr[i];
                    DP[b][j] = max(DP[b][j], dq1[fr] + p);
                }
            }
        }
    }

    if(DP[0][LIM+k] <= 0) imp();
    printf("%d", DP[0][LIM+k]);
}

Compilation message

vault.cpp: In function 'int main()':
vault.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
vault.cpp:26:36: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     for(int i=0; i<=n+n; i++) scanf("%d", &arr[i]);
      |                               ~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 16092 KB Output is correct
2 Correct 88 ms 15992 KB Output is correct
3 Correct 37 ms 15996 KB Output is correct
4 Correct 386 ms 16056 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 4098 ms 16092 KB Output is correct
7 Correct 3746 ms 16176 KB Output is correct
8 Correct 4158 ms 16160 KB Output is correct
9 Correct 4164 ms 16092 KB Output is correct
10 Correct 3270 ms 16028 KB Output is correct
11 Correct 3428 ms 16092 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 16092 KB Output is correct
2 Correct 88 ms 15992 KB Output is correct
3 Correct 37 ms 15996 KB Output is correct
4 Correct 386 ms 16056 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 4098 ms 16092 KB Output is correct
7 Correct 3746 ms 16176 KB Output is correct
8 Correct 4158 ms 16160 KB Output is correct
9 Correct 4164 ms 16092 KB Output is correct
10 Correct 3270 ms 16028 KB Output is correct
11 Correct 3428 ms 16092 KB Output is correct
12 Correct 54 ms 16088 KB Output is correct
13 Correct 79 ms 16084 KB Output is correct
14 Correct 30 ms 16040 KB Output is correct
15 Correct 393 ms 16088 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 4396 ms 16044 KB Output is correct
18 Correct 4131 ms 16088 KB Output is correct
19 Correct 3968 ms 16176 KB Output is correct
20 Correct 4214 ms 16096 KB Output is correct
21 Correct 3559 ms 16096 KB Output is correct
22 Correct 3354 ms 16092 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Execution timed out 5055 ms 15992 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #3-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 16096 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 16096 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 16096 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 16092 KB Output is correct
2 Correct 88 ms 15992 KB Output is correct
3 Correct 37 ms 15996 KB Output is correct
4 Correct 386 ms 16056 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 4098 ms 16092 KB Output is correct
7 Correct 3746 ms 16176 KB Output is correct
8 Correct 4158 ms 16160 KB Output is correct
9 Correct 4164 ms 16092 KB Output is correct
10 Correct 3270 ms 16028 KB Output is correct
11 Correct 3428 ms 16092 KB Output is correct
12 Correct 426 ms 16096 KB Output is correct
13 Incorrect 1 ms 212 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #5-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 16096 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 16092 KB Output is correct
2 Correct 88 ms 15992 KB Output is correct
3 Correct 37 ms 15996 KB Output is correct
4 Correct 386 ms 16056 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 4098 ms 16092 KB Output is correct
7 Correct 3746 ms 16176 KB Output is correct
8 Correct 4158 ms 16160 KB Output is correct
9 Correct 4164 ms 16092 KB Output is correct
10 Correct 3270 ms 16028 KB Output is correct
11 Correct 3428 ms 16092 KB Output is correct
12 Correct 54 ms 16088 KB Output is correct
13 Correct 79 ms 16084 KB Output is correct
14 Correct 30 ms 16040 KB Output is correct
15 Correct 393 ms 16088 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 4396 ms 16044 KB Output is correct
18 Correct 4131 ms 16088 KB Output is correct
19 Correct 3968 ms 16176 KB Output is correct
20 Correct 4214 ms 16096 KB Output is correct
21 Correct 3559 ms 16096 KB Output is correct
22 Correct 3354 ms 16092 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Execution timed out 5055 ms 15992 KB Time limit exceeded
25 Halted 0 ms 0 KB -

Subtask #6-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 16096 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 16092 KB Output is correct
2 Correct 88 ms 15992 KB Output is correct
3 Correct 37 ms 15996 KB Output is correct
4 Correct 386 ms 16056 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 4098 ms 16092 KB Output is correct
7 Correct 3746 ms 16176 KB Output is correct
8 Correct 4158 ms 16160 KB Output is correct
9 Correct 4164 ms 16092 KB Output is correct
10 Correct 3270 ms 16028 KB Output is correct
11 Correct 3428 ms 16092 KB Output is correct
12 Correct 54 ms 16088 KB Output is correct
13 Correct 79 ms 16084 KB Output is correct
14 Correct 30 ms 16040 KB Output is correct
15 Correct 393 ms 16088 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 4396 ms 16044 KB Output is correct
18 Correct 4131 ms 16088 KB Output is correct
19 Correct 3968 ms 16176 KB Output is correct
20 Correct 4214 ms 16096 KB Output is correct
21 Correct 3559 ms 16096 KB Output is correct
22 Correct 3354 ms 16092 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Execution timed out 5055 ms 15992 KB Time limit exceeded
25 Halted 0 ms 0 KB -