CSES - Aalto Competitive Programming 2024 - wk12 - Mon

CSES - Aalto Competitive Programming 2024 - wk12 - Mon - Results

Submission details
Task:	Chain Reaction
Sender:	aalto2024m_004
Submission time:	2024-11-25 17:41:12 +0200
Language:	C++ (C++17)
Status:	READY
Result:	ACCEPTED

Test results
test	verdict	time
#1	ACCEPTED	0.00 s	details
#2	ACCEPTED	0.00 s	details
#3	ACCEPTED	0.00 s	details
#4	ACCEPTED	0.00 s	details
#5	ACCEPTED	0.00 s	details
#6	ACCEPTED	0.00 s	details
#7	ACCEPTED	0.00 s	details
#8	ACCEPTED	0.00 s	details
#9	ACCEPTED	0.00 s	details
#10	ACCEPTED	0.00 s	details
#11	ACCEPTED	0.00 s	details
#12	ACCEPTED	0.00 s	details
#13	ACCEPTED	0.19 s	details
#14	ACCEPTED	0.14 s	details
#15	ACCEPTED	0.17 s	details
#16	ACCEPTED	0.19 s	details
#17	ACCEPTED	0.18 s	details
#18	ACCEPTED	0.00 s	details
#19	ACCEPTED	0.00 s	details
#20	ACCEPTED	0.01 s	details
#21	ACCEPTED	0.00 s	details
#22	ACCEPTED	0.00 s	details
#23	ACCEPTED	0.18 s	details
#24	ACCEPTED	0.18 s	details
#25	ACCEPTED	0.18 s	details
#26	ACCEPTED	0.18 s	details
#27	ACCEPTED	0.19 s	details
#28	ACCEPTED	0.19 s	details
#29	ACCEPTED	0.19 s	details
#30	ACCEPTED	0.18 s	details
#31	ACCEPTED	0.19 s	details
#32	ACCEPTED	0.19 s	details

Code

#include <iostream>
#include <vector>
#include <queue>
#include <algorithm>
using namespace std;
#include <climits>

using ll = long long int;

int main() {
    int n, s;
    cin >> n >> s;
    s--; 
    vector<int> a(n), b(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < n; i++) cin >> b[i];

    vector<vector<int>> adj(n);
    for (int i = 1; i < n; i++) {
        int u, v;
        cin >> u >> v;
        u--; v--; 
        adj[u].push_back(v);
        adj[v].push_back(u);
    }

    vector<ll> max_charge(n, -LLONG_MAX); 
    max_charge[s] = 1;

    queue<int> q;
    q.push(s);
    vector<bool> visited(n, false);
    visited[s] = true;

    ll global_max = 1;

    while (!q.empty()) {
        int u = q.front();
        q.pop();

        for (int v : adj[u]) {
            if (!visited[v]) {
                visited[v] = true;

                ll new_charge1 = max_charge[u] + a[v] - a[u];
                ll new_charge2 = max_charge[u] + b[v] - b[u];

                max_charge[v] = max({max_charge[v], new_charge1, new_charge2});
                global_max = max(global_max, max_charge[v]);

                q.push(v);
            }
        }
    }

    cout << global_max << endl;
}

Test details

Test 1

Verdict: ACCEPTED

input
`5 1 4 2 1 1 1 5 2 1 5 4 1 2 1 3 ...` view save

correct output
`2` view save

user output
`2` view save

Test 2

Verdict: ACCEPTED

input
`4 1 4 2 2 1 1 1 1 1 1 2 2 3 ...` view save

correct output
`1` view save

user output
`1` view save

Test 3

Verdict: ACCEPTED

input
`10 8 7 2 10 4 5 9 1 2 3 1 9 8 6 6 4 6 10 1 7 8 4 5 10 3 ...` view save

correct output
`19` view save

user output
`19` view save

Test 4

Verdict: ACCEPTED

input
`10 1 8 8 6 8 1 9 2 2 7 7 9 6 5 9 2 5 6 5 5 8 1 6 6 7 ...` view save

correct output
`9` view save

user output
`9` view save

Test 5

Verdict: ACCEPTED

input
`10 1 4 1 4 1 4 6 1 1 4 5 5 9 3 9 8 8 10 8 7 10 3 1 1 9 ...` view save

correct output
`11` view save

user output
`11` view save

Test 6

Verdict: ACCEPTED

input
`10 9 9 9 3 3 3 4 1 7 1 9 3 9 10 5 6 6 9 6 9 6 3 8 8 6 ...` view save

correct output
`19` view save

user output
`19` view save

Test 7

Verdict: ACCEPTED

input
`10 1 3 4 2 2 2 10 1 5 10 3 10 8 7 6 2 10 1 6 1 3 2 3 10 4 ...` view save

correct output
`15` view save

user output
`15` view save

Test 8

Verdict: ACCEPTED

input
`10 10 80 58 90 31 79 35 10 75 83 70 48 2 25 73 99 7 53 79 36 89 9 4 7 9 ...` view save

correct output
`54` view save

user output
`54` view save

Test 9

Verdict: ACCEPTED

input
`10 9 50 84 12 34 86 71 73 78 6 62 29 97 88 56 84 94 94 98 36 96 5 10 3 1 ...` view save

correct output
`149` view save

user output
`149` view save

Test 10

Verdict: ACCEPTED

input
`10 5 7 66 89 87 27 80 2 11 29 3 98 7 52 66 21 2 26 19 96 31 4 6 1 10 ...` view save

correct output
`226` view save

user output
`226` view save

Test 11

Verdict: ACCEPTED

input
`10 3 91 13 67 44 6 83 21 8 23 14 54 19 30 26 60 73 22 90 36 84 5 10 4 2 ...` view save

correct output
`151` view save

user output
`151` view save

Test 12

Verdict: ACCEPTED

input
`10 5 87 61 47 96 50 23 35 54 26 87 16 60 77 75 77 91 59 16 23 51 5 1 10 8 ...` view save

correct output
`175` view save

user output
`175` view save

Test 13

Verdict: ACCEPTED

input
`97304 87743 876894525 229121152 393060078 ...` view save

correct output
`131459576065` view save

user output
`131459576065` view save

Test 14

Verdict: ACCEPTED

input
`74779 53246 763040787 482885163 932005790 ...` view save

correct output
`155373737827` view save

user output
`155373737827` view save

Test 15

Verdict: ACCEPTED

input
`89537 85789 432185633 432110306 240073971 ...` view save

correct output
`255801753825` view save

user output
`255801753825` view save

Test 16

Verdict: ACCEPTED

input
`99086 49261 283011093 775415197 945248913 ...` view save

correct output
`162897193427` view save

user output
`162897193427` view save

Test 17

Verdict: ACCEPTED

input
`95142 68716 163121171 100246843 163249744 ...` view save

correct output
`181966887510` view save

user output
`181966887510` view save

Test 18

Verdict: ACCEPTED

input
`19 3 49 73 32 44 84 29 9 76 77 36 9...` view save

correct output
`147` view save

user output
`147` view save

Test 19

Verdict: ACCEPTED

input
`19 6 68 94 70 46 91 47 67 100 62 23...` view save

correct output
`244` view save

user output
`244` view save

Test 20

Verdict: ACCEPTED

input
`18 3 90 65 90 80 41 5 95 17 53 7 29...` view save

correct output
`127` view save

user output
`127` view save

Test 21

Verdict: ACCEPTED

input
`16 1 48 91 87 2 16 39 92 26 1 68 78...` view save

correct output
`224` view save

user output
`224` view save

Test 22

Verdict: ACCEPTED

input
`15 2 11 1 37 1 8 20 24 59 42 52 91 ...` view save

correct output
`219` view save

user output
`219` view save

Test 23

Verdict: ACCEPTED

input
`94171 47986 552466372 215830212 408722990 ...` view save

correct output
`150760767335` view save

user output
`150760767335` view save

Test 24

Verdict: ACCEPTED

input
`94221 86537 45774448 992088337 309200563 7...` view save

correct output
`105016024608` view save

user output
`105016024608` view save

Test 25

Verdict: ACCEPTED

input
`96867 68461 39428919 749383323 481367036 5...` view save

correct output
`219609902823` view save

user output
`219609902823` view save

Test 26

Verdict: ACCEPTED

input
`96077 83268 95064821 23000135 276477667 48...` view save

correct output
`140845793522` view save

user output
`140845793522` view save

Test 27

Verdict: ACCEPTED

input
`99950 74867 864529930 269063846 767129921 ...` view save

correct output
`217758011647` view save

user output
`217758011647` view save

Test 28

Verdict: ACCEPTED

input
`97182 41080 671075894 704355936 662862756 ...` view save

correct output
`167687874177` view save

user output
`167687874177` view save

Test 29

Verdict: ACCEPTED

input
`96113 18731 554071104 111523361 276689875 ...` view save

correct output
`207695993751` view save

user output
`207695993751` view save

Test 30

Verdict: ACCEPTED

input
`92311 6858 440850686 890390689 572816739 ...` view save

correct output
`150986466317` view save

user output
`150986466317` view save

Test 31

Verdict: ACCEPTED

input
`99999 25726 949775640 24729596 158203669 2...` view save

correct output
`125772383324` view save

user output
`125772383324` view save

Test 32

Verdict: ACCEPTED

input
`97857 32129 20264277 670255203 316861628 1...` view save

correct output
`182392362837` view save

user output
`182392362837` view save

Aalto Competitive Programming 2024 - wk12 - Mon

Chain Reaction

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Test 23

Test 24

Test 25

Test 26

Test 27

Test 28

Test 29

Test 30

Test 31

Test 32

Tasks

Submissions (aalto2024m_004)