Submission #895601

#	Time	Username	Problem	Language	Result	Execution time	Memory
895601		Litusiano	Cards (LMIO19_korteles)	C++17	0 / 100	1050 ms	412 KiB

korteles

#include<bits/stdc++.h>
using namespace std;
mt19937 rng((unsigned int) chrono::steady_clock::now().time_since_epoch().count());

vector<char> find(vector<char> v){
	vector<char> k(4,' ');
	k[3-1] = v[1]; k[4-1] = v[2];
	k[0] = v[3]; k[2-1] = v[4];
	if(k[0] == v[2] && k[2] == v[4] && k[1] == v[1] && k[3] == v[3]) return k;
	return {}; 
}

int solve1(int n, vector<vector<char>> v1){
	map<pair<char,char>,int> m12,m13,m34,m24;
	map<vector<char>,int> m1234,m123, m124, m134, m234;
	int ans = 0;
	for(int i = 0; i<n; i++){
		// 100% CHECKED
 
		vector<char> v = v1[i];
		if(m34.find({v[1],v[2]}) != m34.end()){
			ans+= m34[{v[1],v[2]}];
		}
		// if(i+1 == n) cerr<<"ANS: "<<ans<<endl;
		if(m12.find({v[3],v[4]}) != m12.end()){
			ans+= m12[{v[3],v[4]}];
		}
		// if(i+1 == n) cerr<<"ANS: "<<ans<<endl;
		if(m13.find({v[2],v[4]}) != m13.end()){
			ans+= m13[{v[2],v[4]}];
		}
		// if(i+1 == n) cerr<<"ANS: "<<ans<<endl;
		if(m24.find({v[1],v[3]}) != m24.end()){
			ans+= m24[{v[1],v[3]}];
		}
 
 
		// cerr<<"ANS: "<<ans<<" "<<v[1]<<v[2]<<v[3]<<" "<<m234[{v[1],v[2],v[3]}]<<endl;
		if(v[2] == v[3] && m234.find({v[2],v[4]}) != m234.end()){
			ans-=m234[{v[2],v[4]}];
		}
		if(v[2] == v[3]) m234[{v[1],v[3]}]++;
 
 
 
		// if(i+1 == n) cerr<<"ANS: "<<ans<<endl;
		ans+= m1234[find(v)];
		 // cerr<<"ANS: "<<ans<<" "<<v[2]<<v[3]<<v[4]<<" "<<m123[{v[2],v[3],v[4]}]<<endl;
		if(v[2] == v[3] && m123.find({v[1],v[2]}) != m123.end()){
			ans-=m123[{v[1],v[2]}];
		}
		// cerr<<"ANS: "<<ans<<" "<<v[1]<<v[3]<<v[4]<<" "<<m124[{v[1],v[3],v[4]}]<<endl;
		if(v[1] == v[4] && m124.find({v[1],v[2]}) != m124.end()){
			ans-=m124[{v[1],v[2]}];
		}
		 // cerr<<"ANS: "<<ans<<" "<<v[1]<<v[2]<<v[4]<<" "<<m134[{v[1],v[2],v[4]}]<<endl;
		if(v[1] == v[4] && m134.find({v[1],v[3]}) != m134.end()){
			ans-=m134[{v[1],v[3]}];
		}
		
 
		vector<char> v1 = {v[2],v[1],v[4],v[3]};
		if(!(v[1] == v[2] && v[3] == v[4]) && m1234.find(v1) != m1234.end()){
			ans-=m1234[{v[2],v[1],v[4],v[3]}];
		}
		// if((v[1] == v[2] || v[3] == v[4]) && !(v[1] == v[2] && v[3] == v[4])&& m1234.find(v1) != m1234.end()){
		// 	// 3!
		// 	ans+=m1234[v1];
		// }
		v1 = {v[3],v[4],v[1],v[2]}; // TAKE CARE OF 2 AND 3
		if(!(v[1] == v[3] && v[2] == v[4]) && m1234.find(v1) != m1234.end()){
			ans-=m1234[v1];
		}
 		// if((v[1] == v[3] || v[2] == v[4]) && !(v[4] == v[2] && v[3] == v[1])&& m1234.find(v1) != m1234.end()){
		// 	// 3!
		// 	ans+=m1234[v1];
		// }
 
 
 
 
		// if(i+1 == n) cerr<<"ANS: "<<ans<<endl;
		m12[{v[1],v[2]}]++;
		m13[{v[1],v[3]}]++;
		m34[{v[3],v[4]}]++;
		m24[{v[2],v[4]}]++;
		m1234[{v[1],v[2],v[3],v[4]}]++;
 
 
 
 
		
		if(v[4] == v [1]) m134[{v[2],v[4]}]++;
 
		
		if(v[1] == v[4]) m124[{v[3],v[4]}]++;
 
		if(v[2] == v[3]) m123[{v[2],v[4]}]++;

		
	}
	return ans;
}

bool check(vector<char> a, vector<char> b){
	if(a[1] == b[3] && a[2] == b[4]) return true;
	if(a[1] == b[2] && a[3] == b[4]) return true;
	if(a[2] == b[1] && a[4] == b[3]) return true;
	if(a[3] == b[1] && a[4] == b[2]) return true;
	return false;
}

int solve(int n, vector<vector<char>> v){
	int ans = 0;
	for(int i = 0; i<n; i++){
		for(int j = i+1; j<n; j++){
			if(check(v[i],v[j])) ans++;
		}
	}
	return ans;
}

int main(){
	while(1){
		int n = rng()%5;
		// cout<<n<<endl;
		vector<vector<char>> v;
		for(int i = 0; i<n; i++){
			int car = rng()%26;
			vector<char> v1 = {' '};
			for(int j = 0;j < 4; j++){
				char c = rng()%26 + 'A';
				v1.push_back(c);
				// if(j == 1) cout<<endl;
			}
			// cout<<endl;
			v.push_back(v1);
		}
		if(solve(n,v) != solve1(n,v)){
			cout<<n<<endl;
			for(int i = 0; i<n; i++){
				for(int j = 0; j<4; j++){
					cout<<v[i][j+1];
					if(j == 1) cout<<endl;
				}
				cout<<endl;
			}
			
			break;
		}

	}
}

Compilation message (stderr)

korteles.cpp: In function 'int main()':
korteles.cpp:129:8: warning: unused variable 'car' [-Wunused-variable]
  129 |    int car = rng()%26;
      |        ^~~

• Subtask 1: 0 / 16
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 19
• Subtask 5: 0 / 25