| Task: | Tietoverkko |
| Sender: | tuomask |
| Submission time: | 2018-01-18 13:17:53 +0200 |
| Language: | C++ |
| Status: | READY |
| Result: | 100 |
| group | verdict | score |
|---|---|---|
| #1 | ACCEPTED | 28 |
| #2 | ACCEPTED | 72 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | ACCEPTED | 0.05 s | 1 | details |
| #2 | ACCEPTED | 0.04 s | 1 | details |
| #3 | ACCEPTED | 0.05 s | 1 | details |
| #4 | ACCEPTED | 0.04 s | 1 | details |
| #5 | ACCEPTED | 0.05 s | 1 | details |
| #6 | ACCEPTED | 0.17 s | 2 | details |
| #7 | ACCEPTED | 0.18 s | 2 | details |
| #8 | ACCEPTED | 0.18 s | 2 | details |
| #9 | ACCEPTED | 0.17 s | 2 | details |
| #10 | ACCEPTED | 0.18 s | 2 | details |
Code
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n;
int main() {
cin >> n;
set<ll> y[n];
for (int i=0; i<n; i++) {
ll a,b;
cin >> a >> b;
a--; b--;
y[a].insert(b);
y[b].insert(a);
}
ll c=0;
bool jatka = true;
while (jatka) {
jatka = false;
for (int i=0; i<n; i++) {
if (y[i].size() == 1) {
int k=*y[i].begin();
y[k].erase(y[k].find(i));
y[i].clear();
c++;
jatka = true;
}
}
}
cout << c << "\n";
}
Test details
Test 1
Group: 1
Verdict: ACCEPTED
| input |
|---|
| 100 16 88 6 77 60 92 98 64 ... |
| correct output |
|---|
| 97 |
| user output |
|---|
| 97 |
Test 2
Group: 1
Verdict: ACCEPTED
| input |
|---|
| 100 97 41 95 93 79 60 5 4 ... |
| correct output |
|---|
| 95 |
| user output |
|---|
| 95 |
Test 3
Group: 1
Verdict: ACCEPTED
| input |
|---|
| 100 87 24 21 49 86 85 42 32 ... |
| correct output |
|---|
| 90 |
| user output |
|---|
| 90 |
Test 4
Group: 1
Verdict: ACCEPTED
| input |
|---|
| 100 30 24 54 79 51 6 80 29 ... |
| correct output |
|---|
| 50 |
| user output |
|---|
| 50 |
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: ACCEPTED
| input |
|---|
| 100000 98276 76171 70684 49183 48756 661 17166 16972 ... |
| correct output |
|---|
| 99997 |
| user output |
|---|
| 99997 |
Test 7
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 100000 35903 47275 13566 84 58018 42495 57071 4451 ... |
| correct output |
|---|
| 99995 |
| user output |
|---|
| 99995 |
Test 8
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 100000 79209 94485 60266 86793 27501 19927 13544 59730 ... |
| correct output |
|---|
| 99000 |
| user output |
|---|
| 99000 |
Test 9
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 100000 68402 82703 12892 46068 60013 40753 26168 34434 ... |
| correct output |
|---|
| 90000 |
| user output |
|---|
| 90000 |
Test 10
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 100000 37330 74855 54324 45726 61652 15611 79081 47339 ... |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |