| Task: | Tietoverkko |
| Sender: | valokoodari |
| Submission time: | 2018-01-19 09:40:02 +0200 |
| Language: | C++ |
| Status: | READY |
| Result: | 0 |
| group | verdict | score |
|---|---|---|
| #1 | WRONG ANSWER | 0 |
| #2 | RUNTIME ERROR | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | WRONG ANSWER | 0.05 s | 1 | details |
| #2 | WRONG ANSWER | 0.05 s | 1 | details |
| #3 | WRONG ANSWER | 0.04 s | 1 | details |
| #4 | WRONG ANSWER | 0.05 s | 1 | details |
| #5 | ACCEPTED | 0.04 s | 1 | details |
| #6 | RUNTIME ERROR | 0.37 s | 2 | details |
| #7 | RUNTIME ERROR | 0.51 s | 2 | details |
| #8 | RUNTIME ERROR | 0.40 s | 2 | details |
| #9 | RUNTIME ERROR | 0.38 s | 2 | details |
| #10 | RUNTIME ERROR | 0.35 s | 2 | details |
Code
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >> n;
vector<vector<int>> c(n, vector<int> (n, 0));
vector<int> d(n, 0);
for (int i = 0; i < n; i++) {
int a,b;
cin >> a >> b;
a--;
b--;
c[a][d[a]++] = b;
c[b][d[b]++] = a;
}
/* Debug
for (int i = 0; i < n; i++)
cout << d[i] << " ";
cout << endl;
*/
int k = 0;
for (int i = 0; i < n; i++)
if (d[i] == 1) {
k++;
int a = i;
int b = c[a][0];
while (d[b] == 2) {
k++;
if (a == c[b][0]) {
a = b;
b = c[a][1];
} else {
a = b;
b = c[a][0];
}
}
}
cout << k << endl;
return 0;
}
Test details
Test 1
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 100 16 88 6 77 60 92 98 64 ... |
| correct output |
|---|
| 97 |
| user output |
|---|
| 67 |
Test 2
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 100 97 41 95 93 79 60 5 4 ... |
| correct output |
|---|
| 95 |
| user output |
|---|
| 68 |
Test 3
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 100 87 24 21 49 86 85 42 32 ... |
| correct output |
|---|
| 90 |
| user output |
|---|
| 69 |
Test 4
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 100 30 24 54 79 51 6 80 29 ... |
| correct output |
|---|
| 50 |
| user output |
|---|
| 46 |
Test 5
Group: 1
Verdict: ACCEPTED
| input |
|---|
| 100 11 27 54 59 100 90 2 95 ... |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |
Test 6
Group: 2
Verdict: RUNTIME ERROR
| input |
|---|
| 100000 98276 76171 70684 49183 48756 661 17166 16972 ... |
| correct output |
|---|
| 99997 |
| user output |
|---|
| (empty) |
Test 7
Group: 2
Verdict: RUNTIME ERROR
| input |
|---|
| 100000 35903 47275 13566 84 58018 42495 57071 4451 ... |
| correct output |
|---|
| 99995 |
| user output |
|---|
| (empty) |
Test 8
Group: 2
Verdict: RUNTIME ERROR
| input |
|---|
| 100000 79209 94485 60266 86793 27501 19927 13544 59730 ... |
| correct output |
|---|
| 99000 |
| user output |
|---|
| (empty) |
Test 9
Group: 2
Verdict: RUNTIME ERROR
| input |
|---|
| 100000 68402 82703 12892 46068 60013 40753 26168 34434 ... |
| correct output |
|---|
| 90000 |
| user output |
|---|
| (empty) |
Test 10
Group: 2
Verdict: RUNTIME ERROR
| input |
|---|
| 100000 37330 74855 54324 45726 61652 15611 79081 47339 ... |
| correct output |
|---|
| 0 |
| user output |
|---|
| (empty) |