oj.uz

Submission #1040760

# Submission time Handle Problem Language Result Execution time Memory
1040760 2024-08-01T09:01:13 Z 정희우(#10998) Tricks of the Trade (CEOI23_trade) C++17
30 / 100
 8000 ms 3748 KB 
#include<iostream>
#include<algorithm>
#include<vector>
#include<queue>

using namespace std;
using lint = long long;
using intp = pair<int,int>;
using vint = vector<int>;

const int MAX_N=250010;
const int MAX_K=6010;
const lint INF=1e+9*MAX_N;

int n,k;
int c[MAX_N],p[MAX_N];
priority_queue<int,vint,greater<int>> pq;
lint lv[MAX_K],rv[MAX_K];
lint ans;
int check[MAX_K];
int possi[MAX_N];

void calc(int s,int e)
{
    if(e-s<k)return;
    int m=(s+e)>>1;
    fill(lv,lv+MAX_K,-INF);
    fill(rv,rv+MAX_K,-INF);
    lv[0]=rv[0]=0;
    for(int i=1;i<=k;i++)
    {
        lint cnt=0;
        for(int j=m-1;j>=s;j--)
        {
            cnt+=p[j]-c[j];
            pq.push(p[j]);
            while(!pq.empty() && pq.size()>i)
            {
                cnt-=pq.top();
                pq.pop();
            }
            if(!pq.empty() && pq.size()==i)
                lv[i]=max(lv[i],cnt);
        }
        while(!pq.empty())pq.pop();
        cnt=0;
        for(int j=m;j<e;j++)
        {
            cnt+=p[j]-c[j];
            pq.push(p[j]);
            while(!pq.empty() && pq.size()>i)
            {
                cnt-=pq.top();
                pq.pop();
            }
            if(!pq.empty() && pq.size()==i)
                rv[i]=max(rv[i],cnt);
        }
        while(!pq.empty())pq.pop();
    }
    for(int i=0;i<=k;i++)
        ans=max(ans,lv[i]+rv[k-i]);
    calc(s,m);
    calc(m,e);
}

void bt(int s,int e)
{
    if(e-s<k)return;
    int m=(s+e)>>1;
    fill(lv,lv+MAX_K,-INF);
    fill(rv,rv+MAX_K,-INF);
    lv[0]=rv[0]=0;
    for(int i=1;i<=k;i++)
    {
        lint cnt=0;
        for(int j=m-1;j>=s;j--)
        {
            cnt+=p[j]-c[j];
            pq.push(p[j]);
            while(!pq.empty() && pq.size()>i)
            {
                cnt-=pq.top();
                pq.pop();
            }
            if(!pq.empty() && pq.size()==i)
                lv[i]=max(lv[i],cnt);
        }
        while(!pq.empty())pq.pop();
        cnt=0;
        for(int j=m;j<e;j++)
        {
            cnt+=p[j]-c[j];
            pq.push(p[j]);
            while(!pq.empty() && pq.size()>i)
            {
                cnt-=pq.top();
                pq.pop();
            }
            if(!pq.empty() && pq.size()==i)
                rv[i]=max(rv[i],cnt);
        }
        while(!pq.empty())pq.pop();
    }
    fill(check,check+MAX_K,0);
    for(int i=0;i<=k;i++)
        if(lv[i]+rv[k-i]==ans)check[i]=1;
    for(int i=1;i<=k;i++)
    {
        lint cnt=0;
        int pl=m-1,pr=m;
        for(int j=m-1;j>=s;j--)
        {
            cnt+=p[j]-c[j];
            pq.push(p[j]);
            while(!pq.empty() && pq.size()>i)
            {
                cnt-=pq.top();
                pq.pop();
            }
            if(!pq.empty() && pq.size()==i && cnt==lv[i] && check[i])
                while(pl>=j)
                {
                    if(p[pl]>=pq.top())possi[pl]=1;
                    pl--;
                }
                
        }
        while(!pq.empty())pq.pop();
        cnt=0;
        for(int j=m;j<e;j++)
        {
            cnt+=p[j]-c[j];
            pq.push(p[j]);
            while(!pq.empty() && pq.size()>i)
            {
                cnt-=pq.top();
                pq.pop();
            }
            if(!pq.empty() && pq.size()==i && cnt==rv[i] && check[k-i])
                while(pr<=j)
                {
                    if(p[pr]>=pq.top())possi[pr]=1;
                    pr++;
                }
        }
        while(!pq.empty())pq.pop();
    }
    bt(s,m);
    bt(m,e);
}

int main()
{
    ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
    cin >> n >> k;
    for(int i=0;i<n;i++)
        cin >> c[i];
    for(int i=0;i<n;i++)
        cin >> p[i];
    ans=-INF;
    calc(0,n);
    bt(0,n);
    cout << ans << '\n';
    for(int i=0;i<n;i++)
        cout << possi[i];
    return 0;
}

Compilation message

trade.cpp: In function 'void calc(int, int)':
trade.cpp:37:43: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   37 |             while(!pq.empty() && pq.size()>i)
      |                                  ~~~~~~~~~^~
trade.cpp:42:40: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |             if(!pq.empty() && pq.size()==i)
      |                               ~~~~~~~~~^~~
trade.cpp:51:43: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   51 |             while(!pq.empty() && pq.size()>i)
      |                                  ~~~~~~~~~^~
trade.cpp:56:40: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   56 |             if(!pq.empty() && pq.size()==i)
      |                               ~~~~~~~~~^~~
trade.cpp: In function 'void bt(int, int)':
trade.cpp:81:43: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   81 |             while(!pq.empty() && pq.size()>i)
      |                                  ~~~~~~~~~^~
trade.cpp:86:40: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   86 |             if(!pq.empty() && pq.size()==i)
      |                               ~~~~~~~~~^~~
trade.cpp:95:43: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   95 |             while(!pq.empty() && pq.size()>i)
      |                                  ~~~~~~~~~^~
trade.cpp:100:40: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  100 |             if(!pq.empty() && pq.size()==i)
      |                               ~~~~~~~~~^~~
trade.cpp:116:43: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  116 |             while(!pq.empty() && pq.size()>i)
      |                                  ~~~~~~~~~^~
trade.cpp:121:40: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  121 |             if(!pq.empty() && pq.size()==i && cnt==lv[i] && check[i])
      |                               ~~~~~~~~~^~~
trade.cpp:135:43: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  135 |             while(!pq.empty() && pq.size()>i)
      |                                  ~~~~~~~~~^~
trade.cpp:140:40: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  140 |             if(!pq.empty() && pq.size()==i && cnt==rv[i] && check[k-i])
      |                               ~~~~~~~~~^~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 3 ms 2396 KB Output is correct
5 Correct 2 ms 2520 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 2 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 3 ms 2396 KB Output is correct
5 Correct 2 ms 2520 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 2 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2516 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 3 ms 2396 KB Output is correct
16 Correct 4 ms 2396 KB Output is correct
17 Correct 2 ms 2396 KB Output is correct
18 Correct 2 ms 2512 KB Output is correct
19 Correct 2 ms 2392 KB Output is correct
20 Correct 2 ms 2396 KB Output is correct
21 Correct 2 ms 2396 KB Output is correct
22 Correct 2 ms 2396 KB Output is correct
23 Correct 5501 ms 2772 KB Output is correct
24 Correct 46 ms 2396 KB Output is correct
25 Correct 1772 ms 2392 KB Output is correct
26 Correct 243 ms 2396 KB Output is correct
27 Correct 1217 ms 2508 KB Output is correct
28 Correct 66 ms 2396 KB Output is correct
29 Correct 4967 ms 2520 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 2876 ms 3748 KB Output is correct
3 Correct 2844 ms 3568 KB Output is correct
4 Correct 2878 ms 3568 KB Output is correct
5 Correct 2777 ms 3668 KB Output is correct
6 Correct 2809 ms 3572 KB Output is correct
7 Correct 2907 ms 3588 KB Output is correct
8 Correct 2831 ms 3572 KB Output is correct
9 Correct 2922 ms 3576 KB Output is correct
10 Correct 2925 ms 3740 KB Output is correct

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 2876 ms 3748 KB Output is correct
3 Correct 2844 ms 3568 KB Output is correct
4 Correct 2878 ms 3568 KB Output is correct
5 Correct 2777 ms 3668 KB Output is correct
6 Correct 2809 ms 3572 KB Output is correct
7 Correct 2907 ms 3588 KB Output is correct
8 Correct 2831 ms 3572 KB Output is correct
9 Correct 2922 ms 3576 KB Output is correct
10 Correct 2925 ms 3740 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 2953 ms 3572 KB Output is correct
13 Correct 3063 ms 3572 KB Output is correct
14 Correct 3023 ms 3568 KB Output is correct
15 Correct 3076 ms 3576 KB Output is correct
16 Correct 2865 ms 3668 KB Output is correct
17 Correct 2882 ms 3664 KB Output is correct
18 Correct 2854 ms 3580 KB Output is correct
19 Correct 2832 ms 3408 KB Output is correct
20 Correct 2922 ms 3740 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 0 ms 2392 KB Output is correct
23 Correct 3 ms 2396 KB Output is correct
24 Correct 2 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 2 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 2 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Execution timed out 8098 ms 3316 KB Time limit exceeded
32 Halted 0 ms 0 KB -

Subtask #5
0.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 2 ms 2520 KB Output is correct
8 Correct 2 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 2 ms 2396 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2516 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 3 ms 2396 KB Output is correct
18 Correct 4 ms 2396 KB Output is correct
19 Correct 2 ms 2396 KB Output is correct
20 Correct 2 ms 2512 KB Output is correct
21 Correct 2 ms 2392 KB Output is correct
22 Correct 2 ms 2396 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2396 KB Output is correct
25 Correct 5501 ms 2772 KB Output is correct
26 Correct 46 ms 2396 KB Output is correct
27 Correct 1772 ms 2392 KB Output is correct
28 Correct 243 ms 2396 KB Output is correct
29 Correct 1217 ms 2508 KB Output is correct
30 Correct 66 ms 2396 KB Output is correct
31 Correct 4967 ms 2520 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 2876 ms 3748 KB Output is correct
34 Correct 2844 ms 3568 KB Output is correct
35 Correct 2878 ms 3568 KB Output is correct
36 Correct 2777 ms 3668 KB Output is correct
37 Correct 2809 ms 3572 KB Output is correct
38 Correct 2907 ms 3588 KB Output is correct
39 Correct 2831 ms 3572 KB Output is correct
40 Correct 2922 ms 3576 KB Output is correct
41 Correct 2925 ms 3740 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 2953 ms 3572 KB Output is correct
44 Correct 3063 ms 3572 KB Output is correct
45 Correct 3023 ms 3568 KB Output is correct
46 Correct 3076 ms 3576 KB Output is correct
47 Correct 2865 ms 3668 KB Output is correct
48 Correct 2882 ms 3664 KB Output is correct
49 Correct 2854 ms 3580 KB Output is correct
50 Correct 2832 ms 3408 KB Output is correct
51 Correct 2922 ms 3740 KB Output is correct
52 Correct 1 ms 2392 KB Output is correct
53 Correct 0 ms 2392 KB Output is correct
54 Correct 3 ms 2396 KB Output is correct
55 Correct 2 ms 2396 KB Output is correct
56 Correct 2 ms 2396 KB Output is correct
57 Correct 2 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 2 ms 2396 KB Output is correct
60 Correct 2 ms 2396 KB Output is correct
61 Correct 1 ms 2396 KB Output is correct
62 Execution timed out 8098 ms 3316 KB Time limit exceeded
63 Halted 0 ms 0 KB -