CSES - Datatähti 2024 qualification mirror - Results
Submission details
Task:Laskettelukeskus
Sender:aghanam
Submission time:2023-11-12 23:24:19 +0200
Language:C++ (C++11)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED53
#2ACCEPTED47
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2details
#2ACCEPTED0.00 s1, 2details
#3ACCEPTED0.00 s1, 2details
#4ACCEPTED0.13 s2details
#5ACCEPTED0.13 s2details
#6ACCEPTED0.00 s1, 2details
#7ACCEPTED0.10 s2details
#8ACCEPTED0.00 s1, 2details
#9ACCEPTED0.13 s2details
#10ACCEPTED0.00 s1, 2details
#11ACCEPTED0.12 s2details
#12ACCEPTED0.00 s1, 2details
#13ACCEPTED0.12 s2details

Code

#include <bits/stdc++.h>
using namespace std;
class Slope
{
public:
long long id;
long long plowsNeeded;
vector<long long> children;
Slope(long long _id, long long _plowsNeeded) : id(_id), plowsNeeded(_plowsNeeded) {}
};
long long minSnowplows(vector<Slope> &slopes, long long currentSlope)
{
long long totalPlows = 0;
for (long long child : slopes[currentSlope].children)
{
totalPlows += minSnowplows(slopes, child);
}
long long additionalPlows = max<long long>(0, slopes[currentSlope].plowsNeeded - totalPlows);
totalPlows += additionalPlows;
return totalPlows;
}
int main()
{
long long n;
cin >> n;
vector<Slope> slopes(n + 1, Slope(0, 0));
for (long long i = 1; i < n; ++i)
{
long long a, b;
cin >> a >> b;
slopes[a].children.push_back(b);
slopes[b].id = b;
}
for (long long i = 1; i <= n; ++i)
{
cin >> slopes[i].plowsNeeded;
}
long long result = minSnowplows(slopes, 1);
cout << result << endl;
return 0;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
5
1 2
1 3
3 4
3 5
...

correct output
6

user output
6

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
100
1 73
1 64
64 23
1 88
...

correct output
2675

user output
2675

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
100
1 36
36 56
56 59
36 97
...

correct output
2808

user output
2808

Test 4

Group: 2

Verdict: ACCEPTED

input
100000
1 45452
1 74209
45452 78960
45452 79820
...

correct output
28399367694319

user output
28399367694319

Test 5

Group: 2

Verdict: ACCEPTED

input
100000
1 31165
1 23263
31165 89516
31165 53122
...

correct output
28546840313799

user output
28546840313799

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
100
1 79
79 9
79 45
45 10
...

correct output
0

user output
0

Test 7

Group: 2

Verdict: ACCEPTED

input
100000
1 66038
1 56789
56789 7403
66038 69542
...

correct output
0

user output
0

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
100
1 2
2 3
3 4
4 5
...

correct output
100

user output
100

Test 9

Group: 2

Verdict: ACCEPTED

input
100000
1 2
2 3
3 4
4 5
...

correct output
1000000000

user output
1000000000

Test 10

Group: 1, 2

Verdict: ACCEPTED

input
100
1 2
1 3
2 4
2 5
...

correct output
2809

user output
2809

Test 11

Group: 2

Verdict: ACCEPTED

input
100000
1 2
1 3
2 4
2 5
...

correct output
26053917212428

user output
26053917212428

Test 12

Group: 1, 2

Verdict: ACCEPTED

input
100
1 2
1 3
2 4
2 5
...

correct output
5000

user output
5000

Test 13

Group: 2

Verdict: ACCEPTED

input
100000
1 2
1 3
2 4
2 5
...

correct output
50000000000000

user output
50000000000000