CSES - Datatähti 2024 alku - Results
Submission details
Task:Laskettelukeskus
Sender:raikasdev
Submission time:2023-11-07 17:58:55 +0200
Language:Node.js
Status:READY
Result:53
Feedback
groupverdictscore
#1ACCEPTED53
#20
Test results
testverdicttimegroup
#1ACCEPTED0.11 s1, 2details
#2ACCEPTED0.12 s1, 2details
#3ACCEPTED0.12 s1, 2details
#4--2details
#5--2details
#6ACCEPTED0.11 s1, 2details
#7--2details
#8ACCEPTED0.12 s1, 2details
#9--2details
#10ACCEPTED0.12 s1, 2details
#11--2details
#12ACCEPTED0.12 s1, 2details
#13--2details

Code

var readline = require("readline");

// Super Epic Input Tool For Testing :))))
// Fun fact to the moderators: I'm a professional Node.js developer (I have done it as a job and a freelancer, since I was 13!).
// Kinda sad you use such old Node.js version as 12, but suit yourself.

if (process.env.TEST !== "1") {
  let lines = [];
  const r = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    terminal: false,
  });
  r.on("line", (line) => {
    lines.push(line);
    if (lines[0] && lines.length === parseInt(lines[0]) + 1) {
      run(...lines);
      r.close();
    }
  });
} else {
  // This part of the program is used for input management while testing the code :)
  // CSES doesn't run this, so it can be pretty much ignored. :)
  const lines = require("fs")
    .readFileSync(`${__filename.replace(".js", ".txt")}`)
    .toString()
    .split("\n");
  run(...lines);
}

// SOLUTION STARTS
function run(...lines) {
  let slopes = []; // Offset by one

  const slopeCount = parseInt(lines.shift());
  for (let i = 0; i < slopeCount; i++) {
    slopes[i] = {
      id: i,
      needed: 0,
      passed: 0,
      route: [],
    };
  }

  // Listen for input
  for (let i = 0; i < slopeCount - 1; i++) {
    const [from, to] = lines
      .shift()
      .split(" ")
      .map((v) => parseInt(v));
    slopes[to - 1] = {
      ...slopes[to - 1],
      route: [...(slopes[from - 1].route || []), from - 1],
    };
  }

  lines
    .shift()
    .split(" ")
    .forEach((v, index) => (slopes[index].needed = parseInt(v)));

  slopes = slopes.sort((a, b) => b.route.length - a.route.length);

  const pass = (id, times = 1) => {
    const ind = slopes.findIndex((v) => v.id === id);
    slopes[ind] = {
      ...slopes[ind],
      passed: slopes[ind].passed + times,
    };
  };

  let amount = 0;
  slopes.forEach((slope, index) => {
    if (slope.needed > 0 && slope.passed < slope.needed) {
      [slope.id, ...slope.route].forEach((id) =>
        pass(id, slope.needed - slope.passed)
      );
      amount += slope.needed - slope.passed;
    }
  });

  console.log(amount);
}

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:

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

correct output
28399367694319

user output
(empty)

Test 5

Group: 2

Verdict:

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

correct output
28546840313799

user output
(empty)

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:

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

correct output
0

user output
(empty)

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:

input
100000
1 2
2 3
3 4
4 5
...

correct output
1000000000

user output
(empty)

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:

input
100000
1 2
1 3
2 4
2 5
...

correct output
26053917212428

user output
(empty)

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:

input
100000
1 2
1 3
2 4
2 5
...

correct output
50000000000000

user output
(empty)