1208 - Oreon

[draconian devil]

Getting Wrong Answer on UVA 1208 Oreon. Its a straight forward MST problem i think. dont know why i got WA

Code: Select all

#include <iostream>
#include <vector>
#include <cstring>
#include <algorithm>

#define N 55000
using namespace std;

int P[N];

class info
{
public:
	int p,c,guard;
};

bool compare(info i1, info i2)
{
	if(i1.guard == i2.guard)
		return i1.p < i2.p;
	return i1.guard<i2.guard;
}
int Union(int node)
{
	if(P[node] == node) return node;
	return P[node] = Union(P[node]);
}

bool makeUnion(int p, int c)
{
	if(Union(p) != Union(c))
	{
		P[p] = c;
		return true;
	}
	return false;
}
int main()
{	
	int testcase;
	cin >> testcase;
	for(int  t = 1 ; t <= testcase ; t++)
	{	
		int citynum;
		vector <info> city;
		cin >> citynum;

		for(int i = 0 ; i < citynum ; i++)
		{
			for(int j = 0; j < citynum ; j++)
			{
				info temp;
				char c;
				temp.p = i; temp.c = j; cin >> temp.guard;
				if(temp.guard!=0)
					city.push_back(temp);

				if(j < citynum-1)
					cin >> c;
			}
		}

		for(int  i = 0 ; i < citynum ; i++)
			P[i] = i;

		sort(city.begin(),city.end(),compare);

		vector <info> result;

		int a = city.size();
		for(int i = 0 ; i < a ; i++)
		{
			if(makeUnion(city[i].p,city[i].c))
			{
				result.push_back(city[i]);
			}
		}
		int b = result.size();
		cout << "Case " << t << ":" << endl;

		for(int i = 0 ; i < b ; i++)
		{
			char p,c;
			p = result[i].p + 65; c = result[i].c + 65;
			cout << p << "-" << c << " " << result[i].guard << endl;
		}
	}
}

[brianfry713]

Change line 33 to:
P[P[p]] = P[c];

[Repon kumar Roy]

Input :

Code: Select all

12
11
 0, 23, 8, 2, 23, 12, 19, 17, 7, 9, 1
 23, 0, 10, 24, 19, 2, 10, 10, 26, 21, 24
 8, 10, 0, 8, 0, 27, 22, 3, 2, 7, 7
 2, 24, 8, 0, 5, 23, 3, 9, 7, 2, 11
 23, 19, 0, 5, 0, 7, 19, 18, 20, 13, 23
 12, 2, 27, 23, 7, 0, 9, 26, 3, 6, 28
 19, 10, 22, 3, 19, 9, 0, 25, 19, 5, 4
 17, 10, 3, 9, 18, 26, 25, 0, 19, 5, 28
 7, 26, 2, 7, 20, 3, 19, 19, 0, 8, 20
 9, 21, 7, 2, 13, 6, 5, 5, 8, 0, 24
 1, 24, 7, 11, 23, 28, 4, 28, 20, 24, 0
18
 0, 0, 13, 16, 11, 18, 13, 29, 15, 12, 8, 15, 25, 15, 16, 20, 13, 15
 0, 0, 22, 9, 13, 13, 15, 15, 14, 26, 17, 15, 18, 22, 2, 18, 27, 14
 13, 22, 0, 14, 27, 28, 4, 4, 21, 16, 8, 8, 23, 21, 28, 4, 25, 22
 16, 9, 14, 0, 18, 1, 23, 9, 18, 27, 7, 22, 10, 11, 15, 0, 7, 11
 11, 13, 27, 18, 0, 25, 6, 1, 18, 8, 27, 19, 16, 20, 9, 14, 2, 9
 18, 13, 28, 1, 25, 0, 5, 17, 23, 24, 24, 8, 12, 21, 24, 16, 9, 12
 13, 15, 4, 23, 6, 5, 0, 5, 5, 21, 24, 2, 22, 8, 23, 4, 17, 24
 29, 15, 4, 9, 1, 17, 5, 0, 22, 27, 29, 0, 25, 27, 19, 26, 15, 25
 15, 14, 21, 18, 18, 23, 5, 22, 0, 11, 11, 7, 22, 16, 20, 24, 16, 8
 12, 26, 16, 27, 8, 24, 21, 27, 11, 0, 5, 24, 22, 20, 25, 13, 25, 26
 8, 17, 8, 7, 27, 24, 24, 29, 11, 5, 0, 28, 7, 20, 6, 18, 13, 12
 15, 15, 8, 22, 19, 8, 2, 0, 7, 24, 28, 0, 21, 19, 3, 4, 10, 15
 25, 18, 23, 10, 16, 12, 22, 25, 22, 22, 7, 21, 0, 5, 26, 10, 14, 1
 15, 22, 21, 11, 20, 21, 8, 27, 16, 20, 20, 19, 5, 0, 23, 20, 8, 23
 16, 2, 28, 15, 9, 24, 23, 19, 20, 25, 6, 3, 26, 23, 0, 9, 25, 29
 20, 18, 4, 0, 14, 16, 4, 26, 24, 13, 18, 4, 10, 20, 9, 0, 15, 7
 13, 27, 25, 7, 2, 9, 17, 15, 16, 25, 13, 10, 14, 8, 25, 15, 0, 3
 15, 14, 22, 11, 9, 12, 24, 25, 8, 26, 12, 15, 1, 23, 29, 7, 3, 0
9
 0, 5, 20, 21, 1, 5, 21, 4, 20
 5, 0, 2, 18, 15, 6, 6, 5, 25
 20, 2, 0, 7, 25, 27, 1, 9, 15
 21, 18, 7, 0, 8, 19, 22, 7, 6
 1, 15, 25, 8, 0, 4, 20, 15, 3
 5, 6, 27, 19, 4, 0, 14, 13, 22
 21, 6, 1, 22, 20, 14, 0, 29, 26
 4, 5, 9, 7, 15, 13, 29, 0, 28
 20, 25, 15, 6, 3, 22, 26, 28, 0
11
 0, 21, 24, 18, 9, 4, 19, 27, 24, 11, 17
 21, 0, 8, 17, 3, 29, 13, 15, 20, 28, 27
 24, 8, 0, 21, 11, 25, 4, 20, 0, 15, 23
 18, 17, 21, 0, 21, 29, 10, 26, 16, 8, 2
 9, 3, 11, 21, 0, 0, 27, 14, 2, 29, 15
 4, 29, 25, 29, 0, 0, 15, 27, 4, 9, 6
 19, 13, 4, 10, 27, 15, 0, 18, 27, 19, 23
 27, 15, 20, 26, 14, 27, 18, 0, 14, 3, 4
 24, 20, 0, 16, 2, 4, 27, 14, 0, 13, 10
 11, 28, 15, 8, 29, 9, 19, 3, 13, 0, 26
 17, 27, 23, 2, 15, 6, 23, 4, 10, 26, 0
2
 0, 24
 24, 0
12
 0, 15, 16, 15, 26, 1, 23, 21, 0, 6, 23, 7
 15, 0, 8, 3, 8, 8, 11, 8, 4, 7, 20, 13
 16, 8, 0, 17, 6, 24, 10, 9, 20, 8, 24, 19
 15, 3, 17, 0, 17, 9, 22, 3, 25, 0, 28, 27
 26, 8, 6, 17, 0, 27, 13, 27, 27, 16, 27, 27
 1, 8, 24, 9, 27, 0, 17, 4, 20, 25, 15, 29
 23, 11, 10, 22, 13, 17, 0, 18, 10, 27, 9, 15
 21, 8, 9, 3, 27, 4, 18, 0, 15, 23, 25, 3
 0, 4, 20, 25, 27, 20, 10, 15, 0, 14, 23, 3
 6, 7, 8, 0, 16, 25, 27, 23, 14, 0, 12, 3
 23, 20, 24, 28, 27, 15, 9, 25, 23, 12, 0, 18
 7, 13, 19, 27, 27, 29, 15, 3, 3, 3, 18, 0
7
 0, 8, 19, 20, 3, 0, 10
 8, 0, 6, 14, 13, 21, 3
 19, 6, 0, 12, 27, 10, 8
 20, 14, 12, 0, 10, 13, 23
 3, 13, 27, 10, 0, 20, 26
 0, 21, 10, 13, 20, 0, 10
 10, 3, 8, 23, 26, 10, 0
16
 0, 20, 19, 4, 29, 13, 1, 1, 24, 5, 3, 6, 20, 15, 26, 26
 20, 0, 2, 19, 11, 10, 9, 26, 20, 0, 28, 20, 20, 4, 4, 11
 19, 2, 0, 22, 0, 0, 8, 24, 8, 28, 17, 23, 29, 5, 20, 1
 4, 19, 22, 0, 19, 13, 6, 24, 21, 14, 28, 3, 27, 23, 18, 28
 29, 11, 0, 19, 0, 20, 29, 8, 20, 29, 0, 5, 11, 20, 22, 21
 13, 10, 0, 13, 20, 0, 0, 6, 23, 3, 24, 20, 27, 1, 0, 11
 1, 9, 8, 6, 29, 0, 0, 21, 21, 20, 15, 2, 14, 29, 6, 15
 1, 26, 24, 24, 8, 6, 21, 0, 21, 5, 7, 23, 5, 4, 10, 0
 24, 20, 8, 21, 20, 23, 21, 21, 0, 2, 1, 2, 11, 25, 17, 10
 5, 0, 28, 14, 29, 3, 20, 5, 2, 0, 0, 17, 27, 19, 12, 8
 3, 28, 17, 28, 0, 24, 15, 7, 1, 0, 0, 21, 8, 13, 19, 3
 6, 20, 23, 3, 5, 20, 2, 23, 2, 17, 21, 0, 2, 29, 8, 17
 20, 20, 29, 27, 11, 27, 14, 5, 11, 27, 8, 2, 0, 16, 21, 10
 15, 4, 5, 23, 20, 1, 29, 4, 25, 19, 13, 29, 16, 0, 21, 1
 26, 4, 20, 18, 22, 0, 6, 10, 17, 12, 19, 8, 21, 21, 0, 23
 26, 11, 1, 28, 21, 11, 15, 0, 10, 8, 3, 17, 10, 1, 23, 0
16
 0, 13, 7, 5, 26, 11, 18, 5, 27, 16, 21, 15, 3, 2, 5, 29
 13, 0, 7, 11, 26, 7, 16, 3, 6, 6, 14, 18, 8, 20, 29, 16
 7, 7, 0, 22, 25, 1, 21, 1, 8, 16, 28, 28, 15, 27, 28, 17
 5, 11, 22, 0, 24, 13, 5, 0, 5, 27, 28, 29, 1, 17, 23, 28
 26, 26, 25, 24, 0, 24, 10, 21, 4, 20, 4, 24, 12, 19, 0, 19
 11, 7, 1, 13, 24, 0, 16, 19, 17, 4, 25, 17, 24, 27, 9, 27
 18, 16, 21, 5, 10, 16, 0, 5, 9, 21, 17, 0, 16, 15, 20, 15
 5, 3, 1, 0, 21, 19, 5, 0, 26, 0, 9, 4, 7, 3, 7, 15
 27, 6, 8, 5, 4, 17, 9, 26, 0, 8, 8, 10, 15, 19, 26, 2
 16, 6, 16, 27, 20, 4, 21, 0, 8, 0, 4, 26, 25, 9, 8, 14
 21, 14, 28, 28, 4, 25, 17, 9, 8, 4, 0, 15, 0, 4, 23, 9
 15, 18, 28, 29, 24, 17, 0, 4, 10, 26, 15, 0, 15, 19, 8, 14
 3, 8, 15, 1, 12, 24, 16, 7, 15, 25, 0, 15, 0, 21, 26, 24
 2, 20, 27, 17, 19, 27, 15, 3, 19, 9, 4, 19, 21, 0, 1, 27
 5, 29, 28, 23, 0, 9, 20, 7, 26, 8, 23, 8, 26, 1, 0, 19
 29, 16, 17, 28, 19, 27, 15, 15, 2, 14, 9, 14, 24, 27, 19, 0
17
 0, 5, 6, 25, 3, 14, 17, 20, 7, 6, 2, 12, 29, 3, 11, 1, 5
 5, 0, 21, 29, 28, 3, 14, 13, 10, 8, 16, 13, 14, 29, 17, 0, 2
 6, 21, 0, 11, 28, 29, 25, 2, 29, 22, 21, 17, 19, 25, 3, 22, 22
 25, 29, 11, 0, 29, 25, 11, 12, 25, 29, 7, 2, 16, 3, 28, 4, 12
 3, 28, 28, 29, 0, 11, 4, 1, 7, 9, 26, 4, 5, 11, 27, 20, 14
 14, 3, 29, 25, 11, 0, 6, 4, 12, 8, 25, 1, 1, 1, 0, 4, 19
 17, 14, 25, 11, 4, 6, 0, 17, 19, 23, 10, 8, 3, 22, 23, 3, 27
 20, 13, 2, 12, 1, 4, 17, 0, 27, 17, 24, 2, 12, 26, 6, 21, 27
 7, 10, 29, 25, 7, 12, 19, 27, 0, 21, 25, 16, 16, 19, 29, 7, 2
 6, 8, 22, 29, 9, 8, 23, 17, 21, 0, 1, 10, 9, 1, 21, 9, 20
 2, 16, 21, 7, 26, 25, 10, 24, 25, 1, 0, 23, 20, 29, 14, 14, 19
 12, 13, 17, 2, 4, 1, 8, 2, 16, 10, 23, 0, 10, 20, 11, 17, 0
 29, 14, 19, 16, 5, 1, 3, 12, 16, 9, 20, 10, 0, 16, 4, 10, 27
 3, 29, 25, 3, 11, 1, 22, 26, 19, 1, 29, 20, 16, 0, 6, 11, 11
 11, 17, 3, 28, 27, 0, 23, 6, 29, 21, 14, 11, 4, 6, 0, 1, 26
 1, 0, 22, 4, 20, 4, 3, 21, 7, 9, 14, 17, 10, 11, 1, 0, 0
 5, 2, 22, 12, 14, 19, 27, 27, 2, 20, 19, 0, 27, 11, 26, 0, 0
21
 0, 2, 19, 10, 4, 11, 15, 13, 8, 0, 16, 21, 21, 18, 24, 20, 9, 13, 4, 11, 19
 2, 0, 26, 22, 4, 5, 11, 7, 0, 5, 4, 4, 20, 13, 0, 15, 28, 29, 9, 2, 27
 19, 26, 0, 18, 18, 21, 27, 29, 9, 15, 20, 28, 24, 5, 10, 3, 20, 0, 6, 18, 4
 10, 22, 18, 0, 0, 21, 20, 26, 22, 14, 10, 21, 19, 0, 18, 15, 7, 13, 24, 3, 29
 4, 4, 18, 0, 0, 11, 18, 3, 4, 14, 0, 8, 20, 20, 7, 5, 25, 8, 12, 9, 4
 11, 5, 21, 21, 11, 0, 15, 21, 3, 3, 18, 5, 10, 6, 3, 4, 8, 3, 28, 29, 21
 15, 11, 27, 20, 18, 15, 0, 5, 13, 18, 21, 13, 10, 27, 28, 15, 14, 21, 14, 29, 29
 13, 7, 29, 26, 3, 21, 5, 0, 9, 2, 27, 21, 13, 0, 24, 1, 12, 20, 4, 26, 16
 8, 0, 9, 22, 4, 3, 13, 9, 0, 22, 16, 19, 12, 7, 25, 1, 25, 0, 19, 11, 17
 0, 5, 15, 14, 14, 3, 18, 2, 22, 0, 17, 3, 18, 13, 2, 26, 20, 8, 28, 7, 10
 16, 4, 20, 10, 0, 18, 21, 27, 16, 17, 0, 9, 22, 3, 29, 11, 17, 0, 11, 23, 29
 21, 4, 28, 21, 8, 5, 13, 21, 19, 3, 9, 0, 4, 12, 10, 9, 0, 24, 10, 29, 7
 21, 20, 24, 19, 20, 10, 10, 13, 12, 18, 22, 4, 0, 11, 19, 13, 17, 27, 23, 28, 13
 18, 13, 5, 0, 20, 6, 27, 0, 7, 13, 3, 12, 11, 0, 28, 14, 26, 6, 17, 4, 11
 24, 0, 10, 18, 7, 3, 28, 24, 25, 2, 29, 10, 19, 28, 0, 27, 28, 11, 24, 0, 5
 20, 15, 3, 15, 5, 4, 15, 1, 1, 26, 11, 9, 13, 14, 27, 0, 22, 26, 23, 6, 16
 9, 28, 20, 7, 25, 8, 14, 12, 25, 20, 17, 0, 17, 26, 28, 22, 0, 1, 14, 13, 4
 13, 29, 0, 13, 8, 3, 21, 20, 0, 8, 0, 24, 27, 6, 11, 26, 1, 0, 28, 4, 15
 4, 9, 6, 24, 12, 28, 14, 4, 19, 28, 11, 10, 23, 17, 24, 23, 14, 28, 0, 26, 1
 11, 2, 18, 3, 9, 29, 29, 26, 11, 7, 23, 29, 28, 4, 0, 6, 13, 4, 26, 0, 2
 19, 27, 4, 29, 4, 21, 29, 16, 17, 10, 29, 7, 13, 11, 5, 16, 4, 15, 1, 2, 0
10
 0, 28, 20, 27, 20, 22, 3, 22, 2, 18
 28, 0, 27, 19, 1, 1, 18, 24, 12, 11
 20, 27, 0, 6, 22, 21, 0, 10, 13, 10
 27, 19, 6, 0, 23, 10, 20, 12, 1, 6
 20, 1, 22, 23, 0, 21, 9, 29, 3, 20
 22, 1, 21, 10, 21, 0, 24, 27, 2, 4
 3, 18, 0, 20, 9, 24, 0, 29, 1, 29
 22, 24, 10, 12, 29, 27, 29, 0, 26, 9
 2, 12, 13, 1, 3, 2, 1, 26, 0, 4
 18, 11, 10, 6, 20, 4, 29, 9, 4, 0

Output:

Code: Select all

Case 1:
A-K 1
A-D 2
B-F 2
C-I 2
D-J 2
C-H 3
D-G 3
F-I 3
D-E 5
H-J 5
Case 2:
D-F 1
E-H 1
M-R 1
B-O 2
E-Q 2
G-L 2
L-O 3
Q-R 3
C-G 4
C-H 4
C-P 4
F-G 5
G-I 5
J-K 5
M-N 5
K-O 6
A-K 8
Case 3:
A-E 1
C-G 1
B-C 2
E-I 3
A-H 4
E-F 4
A-B 5
D-I 6
Case 4:
D-K 2
E-I 2
B-E 3
H-J 3
A-F 4
C-G 4
F-I 4
H-K 4
F-K 6
B-C 8
Case 5:
A-B 24
Case 6:
A-F 1
B-D 3
D-H 3
H-L 3
I-L 3
J-L 3
F-H 4
C-E 6
B-C 8
G-K 9
C-G 10
Case 7:
A-E 3
B-G 3
B-C 6
A-B 8
C-F 10
D-E 10
Case 8:
A-G 1
A-H 1
C-P 1
F-N 1
I-K 1
N-P 1
B-C 2
G-L 2
I-J 2
I-L 2
L-M 2
D-L 3
F-J 3
B-O 4
E-L 5
Case 9:
C-F 1
C-H 1
D-M 1
N-O 1
A-N 2
I-P 2
A-M 3
B-H 3
H-N 3
E-I 4
E-K 4
F-J 4
H-L 4
J-K 4
D-G 5
Case 10:
A-P 1
E-H 1
F-L 1
F-M 1
F-N 1
J-K 1
J-N 1
O-P 1
A-K 2
B-Q 2
C-H 2
D-L 2
H-L 2
I-Q 2
B-F 3
G-M 3
Case 11:
H-P 1
I-P 1
Q-R 1
S-U 1
A-B 2
B-T 2
H-J 2
J-O 2
T-U 2
C-P 3
D-T 3
E-H 3
F-I 3
F-R 3
J-L 3
K-N 3
A-E 4
B-K 4
L-M 4
G-H 5
Case 12:
B-E 1
B-F 1
D-I 1
G-I 1
A-I 2
F-I 2
F-J 4
C-D 6
H-J 9