oj.uz

Submission #1089884

# Submission time Handle Problem Language Result Execution time Memory
1089884 2024-09-17T11:08:38 Z KALARRY Tricks of the Trade (CEOI23_trade) C++14
25 / 100
 1574 ms 2097152 KB 
//chockolateman
    
#include<bits/stdc++.h>
    
using namespace std;
    
long long N,K,a[250005],b[250005],dp[250005][205];
vector<pair<int,int>> adj[250005][205];   
bool visited[250005][205];
bool used[250005];

void dfs(int startv,int startj)
{
    queue<pair<int,int>> q;
    q.push({startv,startj});
    while(!q.empty())
    {
        int v = q.front().first;
        int j = q.front().second;
        q.pop();
        if(visited[v][j])
            return;
        visited[v][j] = true;
        if(j==0)
            return;
        for(auto e : adj[v][j])
        {
            int u = e.first;
            int newj = e.second;
            if(newj==(j-1))
                used[v] = true;
            dfs(u,newj);
        }
    }
}

int main()
{
    scanf("%lld%lld",&N,&K);
    for(long long i = 1 ; i <= N ; i++)
        scanf("%lld",&a[i]);
    for(long long i = 1 ; i <= N ; i++)
        scanf("%lld",&b[i]);
    for(long long j = 1 ; j <= K ; j++)
    {
        dp[0][j%2] = -1e15;
        for(long long i = 1 ; i <= N ; i++)
        {
            dp[i][j%2] = max(dp[i-1][j%2] - a[i],dp[i-1][(j-1)%2] + b[i] - a[i]);
            if(dp[i][j%2]==dp[i-1][j%2] - a[i])
                adj[i][j].push_back({i-1,j});
            if(dp[i][j%2] == dp[i-1][(j-1)%2] + b[i] - a[i])
                adj[i][j].push_back({i-1,j-1});
        }
    }
    long long ans = -1e15;
    for(long long i = 1 ; i <= N ; i++)
        ans = max(ans,dp[i][K%2]);
    for(long long i = 1 ; i <= N ; i++)
        if(dp[i][K%2]==ans)
                dfs(i,K);
    printf("%lld\n",ans);
    for(int i = 1 ; i <= N ; i++)
        printf("%d",used[i]);
    return 0;
}

Compilation message

trade.cpp: In function 'int main()':
trade.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     scanf("%lld%lld",&N,&K);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
trade.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         scanf("%lld",&a[i]);
      |         ~~~~~^~~~~~~~~~~~~~
trade.cpp:43:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |         scanf("%lld",&b[i]);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 479 ms 1203808 KB Output is correct
2 Correct 467 ms 1204052 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 501 ms 1203796 KB Output is correct
2 Correct 497 ms 1203792 KB Output is correct
3 Correct 495 ms 1203812 KB Output is correct
4 Correct 497 ms 1204804 KB Output is correct
5 Correct 443 ms 1205604 KB Output is correct
6 Correct 440 ms 1204304 KB Output is correct
7 Correct 430 ms 1204572 KB Output is correct
8 Correct 439 ms 1204932 KB Output is correct
9 Correct 428 ms 1204728 KB Output is correct
10 Correct 429 ms 1204560 KB Output is correct
11 Correct 474 ms 1204604 KB Output is correct

Subtask #2
5.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 501 ms 1203796 KB Output is correct
2 Correct 497 ms 1203792 KB Output is correct
3 Correct 495 ms 1203812 KB Output is correct
4 Correct 497 ms 1204804 KB Output is correct
5 Correct 443 ms 1205604 KB Output is correct
6 Correct 440 ms 1204304 KB Output is correct
7 Correct 430 ms 1204572 KB Output is correct
8 Correct 439 ms 1204932 KB Output is correct
9 Correct 428 ms 1204728 KB Output is correct
10 Correct 429 ms 1204560 KB Output is correct
11 Correct 474 ms 1204604 KB Output is correct
12 Correct 490 ms 1203764 KB Output is correct
13 Correct 528 ms 1203980 KB Output is correct
14 Correct 473 ms 1203820 KB Output is correct
15 Correct 492 ms 1204996 KB Output is correct
16 Correct 464 ms 1205840 KB Output is correct
17 Correct 487 ms 1204308 KB Output is correct
18 Correct 467 ms 1204560 KB Output is correct
19 Correct 430 ms 1204816 KB Output is correct
20 Correct 432 ms 1204676 KB Output is correct
21 Correct 473 ms 1204392 KB Output is correct
22 Correct 431 ms 1204560 KB Output is correct
23 Partially correct 1361 ms 1551168 KB Partially correct
24 Correct 478 ms 1216008 KB Output is correct
25 Partially correct 996 ms 1308924 KB Partially correct
26 Correct 507 ms 1236092 KB Output is correct
27 Partially correct 1574 ms 1484624 KB Partially correct
28 Correct 448 ms 1214036 KB Output is correct
29 Partially correct 1243 ms 1390216 KB Partially correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 513 ms 1203792 KB Output is correct
2 Correct 765 ms 1676368 KB Output is correct
3 Correct 697 ms 1627984 KB Output is correct
4 Correct 680 ms 1627944 KB Output is correct
5 Correct 711 ms 1696852 KB Output is correct
6 Correct 698 ms 1678928 KB Output is correct
7 Correct 925 ms 1865232 KB Output is correct
8 Correct 621 ms 1627984 KB Output is correct
9 Correct 622 ms 1626452 KB Output is correct
10 Correct 737 ms 1677392 KB Output is correct

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 513 ms 1203792 KB Output is correct
2 Correct 765 ms 1676368 KB Output is correct
3 Correct 697 ms 1627984 KB Output is correct
4 Correct 680 ms 1627944 KB Output is correct
5 Correct 711 ms 1696852 KB Output is correct
6 Correct 698 ms 1678928 KB Output is correct
7 Correct 925 ms 1865232 KB Output is correct
8 Correct 621 ms 1627984 KB Output is correct
9 Correct 622 ms 1626452 KB Output is correct
10 Correct 737 ms 1677392 KB Output is correct
11 Correct 494 ms 1203936 KB Output is correct
12 Correct 742 ms 1676456 KB Output is correct
13 Correct 688 ms 1628244 KB Output is correct
14 Correct 679 ms 1628288 KB Output is correct
15 Correct 743 ms 1696856 KB Output is correct
16 Correct 668 ms 1678928 KB Output is correct
17 Correct 757 ms 1865300 KB Output is correct
18 Correct 619 ms 1627984 KB Output is correct
19 Correct 616 ms 1626392 KB Output is correct
20 Correct 718 ms 1677368 KB Output is correct
21 Correct 462 ms 1203792 KB Output is correct
22 Correct 463 ms 1203792 KB Output is correct
23 Correct 471 ms 1204808 KB Output is correct
24 Correct 463 ms 1205588 KB Output is correct
25 Correct 487 ms 1204240 KB Output is correct
26 Correct 428 ms 1204560 KB Output is correct
27 Correct 442 ms 1204820 KB Output is correct
28 Correct 438 ms 1204860 KB Output is correct
29 Correct 449 ms 1204564 KB Output is correct
30 Correct 444 ms 1204672 KB Output is correct
31 Runtime error 1206 ms 2097152 KB Execution killed with signal 9
32 Halted 0 ms 0 KB -

Subtask #5
0.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 479 ms 1203808 KB Output is correct
2 Correct 467 ms 1204052 KB Output is correct
3 Correct 501 ms 1203796 KB Output is correct
4 Correct 497 ms 1203792 KB Output is correct
5 Correct 495 ms 1203812 KB Output is correct
6 Correct 497 ms 1204804 KB Output is correct
7 Correct 443 ms 1205604 KB Output is correct
8 Correct 440 ms 1204304 KB Output is correct
9 Correct 430 ms 1204572 KB Output is correct
10 Correct 439 ms 1204932 KB Output is correct
11 Correct 428 ms 1204728 KB Output is correct
12 Correct 429 ms 1204560 KB Output is correct
13 Correct 474 ms 1204604 KB Output is correct
14 Correct 490 ms 1203764 KB Output is correct
15 Correct 528 ms 1203980 KB Output is correct
16 Correct 473 ms 1203820 KB Output is correct
17 Correct 492 ms 1204996 KB Output is correct
18 Correct 464 ms 1205840 KB Output is correct
19 Correct 487 ms 1204308 KB Output is correct
20 Correct 467 ms 1204560 KB Output is correct
21 Correct 430 ms 1204816 KB Output is correct
22 Correct 432 ms 1204676 KB Output is correct
23 Correct 473 ms 1204392 KB Output is correct
24 Correct 431 ms 1204560 KB Output is correct
25 Partially correct 1361 ms 1551168 KB Partially correct
26 Correct 478 ms 1216008 KB Output is correct
27 Partially correct 996 ms 1308924 KB Partially correct
28 Correct 507 ms 1236092 KB Output is correct
29 Partially correct 1574 ms 1484624 KB Partially correct
30 Correct 448 ms 1214036 KB Output is correct
31 Partially correct 1243 ms 1390216 KB Partially correct
32 Correct 513 ms 1203792 KB Output is correct
33 Correct 765 ms 1676368 KB Output is correct
34 Correct 697 ms 1627984 KB Output is correct
35 Correct 680 ms 1627944 KB Output is correct
36 Correct 711 ms 1696852 KB Output is correct
37 Correct 698 ms 1678928 KB Output is correct
38 Correct 925 ms 1865232 KB Output is correct
39 Correct 621 ms 1627984 KB Output is correct
40 Correct 622 ms 1626452 KB Output is correct
41 Correct 737 ms 1677392 KB Output is correct
42 Correct 494 ms 1203936 KB Output is correct
43 Correct 742 ms 1676456 KB Output is correct
44 Correct 688 ms 1628244 KB Output is correct
45 Correct 679 ms 1628288 KB Output is correct
46 Correct 743 ms 1696856 KB Output is correct
47 Correct 668 ms 1678928 KB Output is correct
48 Correct 757 ms 1865300 KB Output is correct
49 Correct 619 ms 1627984 KB Output is correct
50 Correct 616 ms 1626392 KB Output is correct
51 Correct 718 ms 1677368 KB Output is correct
52 Correct 462 ms 1203792 KB Output is correct
53 Correct 463 ms 1203792 KB Output is correct
54 Correct 471 ms 1204808 KB Output is correct
55 Correct 463 ms 1205588 KB Output is correct
56 Correct 487 ms 1204240 KB Output is correct
57 Correct 428 ms 1204560 KB Output is correct
58 Correct 442 ms 1204820 KB Output is correct
59 Correct 438 ms 1204860 KB Output is correct
60 Correct 449 ms 1204564 KB Output is correct
61 Correct 444 ms 1204672 KB Output is correct
62 Runtime error 1206 ms 2097152 KB Execution killed with signal 9
63 Halted 0 ms 0 KB -