oj.uz

Submission #598819

# Submission time Handle Problem Language Result Execution time Memory
598819 2022-07-19T06:07:22 Z shrimb Cards (LMIO19_korteles) C++17
36 / 100
 1000 ms 99308 KB 
#include"bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less_equal<x>, rb_tree_tag,tree_order_statistics_node_update>;

// #define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991

string Hash (char a, char b) {
	return ((string)"" + a) + b;
}

signed main () {
    cin.tie(0)->sync_with_stdio(0);
	int n;
	cin >> n;
	int ans = 0;
	unordered_map<string,int> mp[1<<4];
	for (int i = 0 ; i < n ; i++) {
		char a, b, c, d;
		cin >> a >> b >> c >> d;
		string H[4] = {Hash(a, b), Hash(b, d), Hash(c, d), Hash(a, c)};
		// U R D L
		vector<string> inc;

		string enc, ienc;
		int cnt = 0;
		int inv = 0;
		#define check(j,i,k) if (j & (1 << i)) { cnt++; enc += H[i]; inv |= (1 << k);}
		for (int j = 1 ; j < (1 << 4) ; j++) {
			enc.clear();
			ienc.clear();
			cnt = 0;
			inv = 0;
			check(j, 0, 2);
			check(j, 1, 3);
			check(j, 2, 0);
			check(j, 3, 1);
			for (int k = 0 ; k < 4 ; k++) {
				if (inv & (1 << k)) {
					ienc += H[(k + 2) % 4];
				}
			}
			if (cnt & 1) ans += mp[inv][ienc];
			else ans -= mp[inv][ienc];
			// cerr << enc << endl;
			inc.push_back(enc);
		}
		for (int j = 1 ; j < (1 << 4) ; j++) mp[j][inc[j - 1]]++;
	}
	cout << ans << endl;
}

Compilation message

korteles.cpp:14:1: warning: multi-line comment [-Wcomment]
   14 | //\
      | ^

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 5 ms 1492 KB Output is correct
7 Correct 8 ms 2004 KB Output is correct
8 Correct 22 ms 4336 KB Output is correct
9 Correct 21 ms 3540 KB Output is correct
10 Correct 16 ms 3552 KB Output is correct
11 Correct 0 ms 212 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1083 ms 99308 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 694 ms 61864 KB Output is correct
3 Execution timed out 1045 ms 96468 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 1492 KB Output is correct
3 Correct 8 ms 2004 KB Output is correct
4 Correct 22 ms 4336 KB Output is correct
5 Correct 21 ms 3540 KB Output is correct
6 Correct 16 ms 3552 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Execution timed out 1083 ms 99308 KB Time limit exceeded
13 Halted 0 ms 0 KB -