Submission #1138877

#	Time	Username	Problem	Language	Result	Execution time	Memory
1138877		RaduM	Cards (LMIO19_korteles)	C++20	0 / 100	1098 ms	87060 KiB

korteles

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

vector < map < vector <int>, int > > mp(16);
vector <int> temp;

string s[2];
int h[4];

int main()
{
    int n,i;
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n;
    ll rez = 0;
    for(i = 1; i <= n; i++){
        for(int e = 0; e < 2; e++){
            cin.get();
            cin >> s[e];
        }
        h[0] = (s[0][0] - 65) * 26 + (s[0][1] - 65);
        h[2] = (s[1][0] - 65) * 26 + (s[1][1] - 65);
        h[1] = (s[0][0] - 65) * 26 + (s[1][0] - 65);
        h[3] = (s[0][1] - 65) * 26 + (s[1][1] - 65);
        for(int e = 1; e < 16; e++){
            for(int j = 0; j < 4; j++){
                if((1 << j) & e) temp.push_back(h[j ^ 2]);
            }
            auto it = mp[e].find(temp);
            if(it != mp[e].end()){
                if(__builtin_popcount(e) & 1) rez += it->second;
                else rez -= it->second;
                it->second++;
            }
            temp.clear();
        }
        for(int e = 1; e < 16; e++){
            for(int j = 0; j < 4; j++){
                if((1 << j) & e) temp.push_back(h[j]);
            }
            mp[e][temp]++;
            temp.clear();
        }
    }
    cout << rez;
    return 0;
}

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