oj.uz

Submission #1064545

# Submission time Handle Problem Language Result Execution time Memory
1064545 2024-08-18T14:15:10 Z beaconmc Tricks of the Trade (CEOI23_trade) C++14
20 / 100
 8000 ms 171948 KB 
#include <bits/stdc++.h>
 
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;



int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	ll n,k;
	cin >> n >> k;
	vector<ll> price(n), sell(n);
	FOR(i,0,n) cin >> price[i];
	FOR(i,0,n) cin >> sell[i];
	ll ans = -1000000000000000;
	FOR(i,0,n){
		set<array<ll,2>> stuff;
		ll sum = 0;
		ll cost = 0;
		FOR(j,i,n){
			cost += price[j];
			sum += sell[j];

			stuff.insert({sell[j], j});
			if (stuff.size() > k){
				auto it = stuff.begin();
				sum -= (*it)[0];
				stuff.erase(it);
			}

			if (stuff.size()==k) ans = max(ans, sum-cost);
		}
	}

	cout << ans << "\n";

	vector<ll> used(n);
	vector<vector<ll>> idk(n+1);

	FOR(i,0,n){
		
		set<array<ll,2>> stuff;
		
		ll sum = 0;
		ll cost = 0;
		FOR(j,i,n){
			cost += price[j];
			sum += sell[j];

			stuff.insert({sell[j], j});

			if (stuff.size() > k){
				auto it = stuff.begin();
				sum -= (*it)[0];
				stuff.erase(it);
			}

			if (stuff.size()==k && (sum-cost) == ans){
				idk[i].push_back((*stuff.begin())[0]);
				idk[j+1].push_back(-(*stuff.begin())[0]);
			}
		}
	}

	multiset<ll> now;
	FOR(i,0,n){
		for (auto&k : idk[i]){
			if (k>0) now.insert(k);
			else now.erase(now.find(-k));
		}
		if (now.size()==0) continue;
		if (sell[i] >= (*now.begin())) used[i] = 1;

	}
	for (auto&i : used) cout << i;







}

Compilation message

trade.cpp: In function 'int main()':
trade.cpp:30:21: warning: comparison of integer expressions of different signedness: 'std::set<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   30 |    if (stuff.size() > k){
      |        ~~~~~~~~~~~~~^~~
trade.cpp:36:20: warning: comparison of integer expressions of different signedness: 'std::set<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   36 |    if (stuff.size()==k) ans = max(ans, sum-cost);
      |        ~~~~~~~~~~~~^~~
trade.cpp:57:21: warning: comparison of integer expressions of different signedness: 'std::set<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   57 |    if (stuff.size() > k){
      |        ~~~~~~~~~~~~~^~~
trade.cpp:63:20: warning: comparison of integer expressions of different signedness: 'std::set<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   63 |    if (stuff.size()==k && (sum-cost) == ans){
      |        ~~~~~~~~~~~~^~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 3 ms 348 KB Output is correct
10 Correct 3 ms 348 KB Output is correct
11 Correct 3 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 3 ms 348 KB Output is correct
10 Correct 3 ms 348 KB Output is correct
11 Correct 3 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 4 ms 348 KB Output is correct
16 Correct 4 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 4 ms 600 KB Output is correct
20 Correct 3 ms 348 KB Output is correct
21 Correct 5 ms 456 KB Output is correct
22 Correct 3 ms 348 KB Output is correct
23 Correct 4508 ms 1104 KB Output is correct
24 Correct 1037 ms 772 KB Output is correct
25 Correct 3268 ms 860 KB Output is correct
26 Correct 2267 ms 764 KB Output is correct
27 Correct 4022 ms 171948 KB Output is correct
28 Correct 965 ms 524 KB Output is correct
29 Correct 4333 ms 724 KB Output is correct

Subtask #3
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Execution timed out 8057 ms 4188 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Execution timed out 8057 ms 4188 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 4 ms 604 KB Output is correct
11 Correct 3 ms 348 KB Output is correct
12 Correct 3 ms 348 KB Output is correct
13 Correct 3 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 4 ms 348 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 4 ms 348 KB Output is correct
21 Correct 4 ms 600 KB Output is correct
22 Correct 3 ms 348 KB Output is correct
23 Correct 5 ms 456 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 4508 ms 1104 KB Output is correct
26 Correct 1037 ms 772 KB Output is correct
27 Correct 3268 ms 860 KB Output is correct
28 Correct 2267 ms 764 KB Output is correct
29 Correct 4022 ms 171948 KB Output is correct
30 Correct 965 ms 524 KB Output is correct
31 Correct 4333 ms 724 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Execution timed out 8057 ms 4188 KB Time limit exceeded
34 Halted 0 ms 0 KB -