Submission #589245

#	Time	Username	Problem	Language	Result	Execution time	Memory
589245		ignus	Cards (LMIO19_korteles)	C++14	0 / 100	127 ms	20784 KiB

korteles

#include<bits/stdc++.h>
using namespace std;

int main(){
	int n;
	cin >> n;
	int a[4][676];
	int c[4556976];
	long long fin = 0;
	for(int i = 0; i < 676; i++){
		for(int j = 0; j < 4; j++)a[j][i]=0;
	}
	for(int i = 0; i < 4556976; i++){
		c[i]=0;
	}
	for(int i = 0; i < n; i++){
		char t1, t2, t3, t4;
		cin >> t1 >> t2 >> t3 >> t4;
		
		a[0][26*(t1-'A')+t2-'A']++;
		a[1][26*(t3-'A')+t4-'A']++;
		a[2][26*(t1-'A')+t3-'A']++;
		a[3][26*(t2-'A')+t4-'A']++;
		
		fin+=a[0][26*(t3-'A')+t4-'A']+a[1][26*(t1-'A')+t2-'A']+a[2][26*(t2-'A')+t4-'A']+a[3][26*(t1-'A')+t3-'A'];
		
		c[26*(26*(26*(t1-'A')+t2-'A')+t3-'A')+t4-'A']++;
		
		fin-=c[26*(26*(26*(t2-'A')+t1-'A')+t4-'A')+t3-'A']+26*(26*(26*(t3-'A')+t4-'A')+t1-'A')+t2-'A';
		
		if(26*(26*(26*(t2-'A')+t1-'A')+t4-'A')+t3-'A'==26*(26*(26*(t3-'A')+t4-'A')+t1-'A')+t2-'A'){
			fin-=c[26*(26*(26*(t2-'A')+t1-'A')+t4-'A')+t3-'A'];
		}
		
	}
	cout << fin;
	return 0;
}

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