oj.uz

Submission #501919

# Submission time Handle Problem Language Result Execution time Memory
501919 2022-01-04T19:20:24 Z lovrot Cards (LMIO19_korteles) C++11
100 / 100
 71 ms 4900 KB 
#include <bits/stdc++.h> 
 
#define X first
#define Y second
#define ll long long
#define pii pair<int, int>
#define pb push_back
#define vec vector
#define siz size()
#define pri(i, poc, n, pov) for(int i = (int) poc; i < (int) n; i += (int) pov)
#define od(i, poc, n, pov) for(int i = (int) poc; i > (int) n; i -= (int) pov)
 
using namespace std;
 
const ll INF = 1e18;                              
const int LOG = 20;
const int OFF = (1 << LOG);
const int MOD = 1e9 + 7;
const int lx[8] = {1, -1, 0, 0, -1, 1, 1, -1};
const int ly[8] = {0, 0, 1, -1, -1, 1, -1, 1};
const int N = 1e5 + 10;
 
int abs(int x){ 
	if(x < 0)
		return -x;
	return x;
}
 
ll a[27][27], b[27][27], c[27][27], d[27][27];
ll bc[27][27][27], cd[27][27][27], ad[27][27][27], ab[27][27][27];
ll all[27][27][27][27];
 
int main(){ 
	ios_base::sync_with_stdio(false); 
	cin.tie(0);
	cout.tie(0);
	setprecision(9);
 
	int n;	
	cin >> n;
 
	ll ans = 0;
 
	pri(i, 0, n, 1){ 
		char s1, s2, s3, s4;
		cin >> s1 >> s2 >> s3 >> s4;
		int x = s1 - 'A';
		int y = s2 - 'A';
		int z = s3 - 'A';
		int w = s4 - 'A';
			
		ans += c[x][y] + d[z][x] + a[w][z] + b[y][w];
		if(y == z){
			ans -= ab[w][z][w];
			ans -= cd[x][y][x]; 
		}
		if(x == w){ 								
			ans -= bc[y][w][y];
			ans -= ad[z][x][z];
		}
		if(x == w && y == z) ans += 3 * all[x][y][x][y];
		ans -= all[w][z][x][y];
		ans -= all[x][y][w][z];
	
		a[y][x]++;
		b[x][z]++;
		c[z][w]++;
		d[w][y]++;
		ab[y][x][z]++;	
		ad[w][y][x]++;
		bc[x][z][w]++;
		cd[z][w][y]++;
		all[y][x][z][w]++;
	}
 
	cout << ans;
	return 0;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 844 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 844 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 2 ms 2636 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 3 ms 4428 KB Output is correct
9 Correct 1 ms 2636 KB Output is correct
10 Correct 2 ms 3404 KB Output is correct
11 Correct 1 ms 332 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 4812 KB Output is correct
2 Correct 55 ms 4876 KB Output is correct
3 Correct 59 ms 4884 KB Output is correct
4 Correct 71 ms 4872 KB Output is correct
5 Correct 41 ms 4812 KB Output is correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 8 ms 4812 KB Output is correct
3 Correct 25 ms 4812 KB Output is correct
4 Correct 16 ms 4840 KB Output is correct
5 Correct 17 ms 4836 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 3 ms 4428 KB Output is correct
5 Correct 1 ms 2636 KB Output is correct
6 Correct 2 ms 3404 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 1 ms 716 KB Output is correct
11 Correct 1 ms 844 KB Output is correct
12 Correct 40 ms 4812 KB Output is correct
13 Correct 55 ms 4876 KB Output is correct
14 Correct 59 ms 4884 KB Output is correct
15 Correct 71 ms 4872 KB Output is correct
16 Correct 41 ms 4812 KB Output is correct
17 Correct 8 ms 4812 KB Output is correct
18 Correct 25 ms 4812 KB Output is correct
19 Correct 16 ms 4840 KB Output is correct
20 Correct 17 ms 4836 KB Output is correct
21 Correct 15 ms 4868 KB Output is correct
22 Correct 33 ms 4812 KB Output is correct
23 Correct 25 ms 4812 KB Output is correct
24 Correct 21 ms 4900 KB Output is correct