oj.uz

Submission #578215

# Submission time Handle Problem Language Result Execution time Memory
578215 2022-06-16T08:33:30 Z jeroenodb Carnival Tickets (IOI20_tickets) C++17
100 / 100
 744 ms 75240 KB 
#include "tickets.h"
#include <vector>
#include "bits/stdc++.h"
using namespace std;
#define all(x) begin(x),end(x)
template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { string sep; for (const T &x : v) os << sep << x, sep = " "; return os; }
#define debug(a) cerr << "(" << #a << ": " << a << ")\n";
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pi;
const int mxN = 1e5+1, oo = 1e9;

long long find_maximum(int k, std::vector<std::vector<int>> x) {
	ll ans=0;
	int n = x.size(),m = x[0].size();
	vi big(n);
	struct el {
		int dif,color;
		bool operator<(const el& o) {
			return dif>o.dif;
		}
	};
	vector<el> options;
	for(int col=0;col<n;++col) {
		auto& v = x[col];
		for(int i=0;i<k;++i) ans-=v[i];
		for(int i=0;i<k;++i) {
			options.push_back({v[k-1-i]+v[m-1-i],col});
		}
	}
	sort(all(options));
	options.resize(n*k/2);
	for(auto e : options) {
		big[e.color]++;
		ans+=e.dif;
	}
	vi small(n,m-1);
	for(int i=0;i<n;++i) small[i]=k-big[i];
	// construct it
	for(auto& v : x) fill(all(v),-1);
	for(int i=0;i<k;++i) {
		vector<bool> vis(n);
		int bal=0;
		auto take=[&](int j) {
			if(vis[j]) return;
			vis[j]=true;
			if(small[j]!=0 and (big[j]==0 or bal>0)) {
				bal--;
				x[j][--small[j]] = i;
			} else {
				x[j][m - big[j]--] = i;
				bal++;
			}
		};
		for(int j=0;j<n;++j) {
			if(big[j]==0 or small[j]==0) {
				take(j);
			}
		}
		for(int j=0;j<n;++j) take(j);
	}
	allocate_tickets(x);
	return ans;
	
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 596 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 24 ms 2012 KB Output is correct
6 Correct 503 ms 42828 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 18 ms 2228 KB Output is correct
6 Correct 484 ms 48928 KB Output is correct
7 Correct 472 ms 51832 KB Output is correct
8 Correct 4 ms 596 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 5 ms 732 KB Output is correct
13 Correct 18 ms 2000 KB Output is correct
14 Correct 15 ms 2016 KB Output is correct
15 Correct 512 ms 54124 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 4 ms 468 KB Output is correct
5 Correct 37 ms 3208 KB Output is correct
6 Correct 5 ms 848 KB Output is correct
7 Correct 6 ms 948 KB Output is correct
8 Correct 740 ms 75060 KB Output is correct
9 Correct 702 ms 70312 KB Output is correct
10 Correct 649 ms 70284 KB Output is correct
11 Correct 744 ms 75240 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 2 ms 440 KB Output is correct
5 Correct 2 ms 444 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 2 ms 440 KB Output is correct
10 Correct 3 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 3 ms 468 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 2 ms 440 KB Output is correct
5 Correct 2 ms 444 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 2 ms 440 KB Output is correct
10 Correct 3 ms 468 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 3 ms 468 KB Output is correct
13 Correct 19 ms 2832 KB Output is correct
14 Correct 22 ms 2800 KB Output is correct
15 Correct 26 ms 2920 KB Output is correct
16 Correct 28 ms 3288 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 21 ms 2508 KB Output is correct
21 Correct 23 ms 2948 KB Output is correct
22 Correct 24 ms 2652 KB Output is correct
23 Correct 27 ms 3124 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 24 ms 2012 KB Output is correct
12 Correct 503 ms 42828 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 18 ms 2228 KB Output is correct
18 Correct 484 ms 48928 KB Output is correct
19 Correct 472 ms 51832 KB Output is correct
20 Correct 4 ms 596 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 5 ms 732 KB Output is correct
25 Correct 18 ms 2000 KB Output is correct
26 Correct 15 ms 2016 KB Output is correct
27 Correct 512 ms 54124 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 300 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 4 ms 468 KB Output is correct
32 Correct 37 ms 3208 KB Output is correct
33 Correct 5 ms 848 KB Output is correct
34 Correct 6 ms 948 KB Output is correct
35 Correct 740 ms 75060 KB Output is correct
36 Correct 702 ms 70312 KB Output is correct
37 Correct 649 ms 70284 KB Output is correct
38 Correct 744 ms 75240 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 2 ms 468 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 2 ms 440 KB Output is correct
43 Correct 2 ms 444 KB Output is correct
44 Correct 3 ms 468 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 312 KB Output is correct
47 Correct 2 ms 440 KB Output is correct
48 Correct 3 ms 468 KB Output is correct
49 Correct 2 ms 468 KB Output is correct
50 Correct 3 ms 468 KB Output is correct
51 Correct 19 ms 2832 KB Output is correct
52 Correct 22 ms 2800 KB Output is correct
53 Correct 26 ms 2920 KB Output is correct
54 Correct 28 ms 3288 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 2 ms 468 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 21 ms 2508 KB Output is correct
59 Correct 23 ms 2948 KB Output is correct
60 Correct 24 ms 2652 KB Output is correct
61 Correct 27 ms 3124 KB Output is correct
62 Correct 54 ms 7436 KB Output is correct
63 Correct 59 ms 7360 KB Output is correct
64 Correct 86 ms 8660 KB Output is correct
65 Correct 255 ms 29616 KB Output is correct
66 Correct 300 ms 33568 KB Output is correct
67 Correct 8 ms 980 KB Output is correct
68 Correct 5 ms 816 KB Output is correct
69 Correct 497 ms 64224 KB Output is correct
70 Correct 620 ms 66228 KB Output is correct
71 Correct 720 ms 75116 KB Output is correct
72 Correct 522 ms 59260 KB Output is correct
73 Correct 678 ms 71488 KB Output is correct
74 Correct 468 ms 52268 KB Output is correct
75 Correct 606 ms 64740 KB Output is correct