CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:Esinko
Submission time:2022-11-03 11:41:37 +0200
Language:Node.js
Status:READY
Result:28
Feedback
groupverdictscore
#1ACCEPTED28
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.11 s1, 2, 3details
#2ACCEPTED0.11 s1, 2, 3details
#3ACCEPTED0.11 s1, 2, 3details
#4ACCEPTED0.46 s2, 3details
#5--2, 3details
#6--2, 3details
#7--3details
#8--3details
#9--3details

Code

//const { performance } = require("perf_hooks")
//const start = performance.now()
// Get input
const [length, ...lines] = require("fs").readFileSync(0, "utf8").trim().split("\n").map(l => l.trim().split(" ").map(Number))
function getRelations(x, y) {
const val = lines[y][x]
const relations = []
// Above
for (let i = y; i > -1; i--){
if (lines[i][x] < val) relations.push([x, i])
}
// Below
for (let i = y; i < length; i++){
if (lines[i][x] < val) relations.push([x, i])
}
// Left
for (let i = x; i > -1; i--){
if (lines[y][i] < val) relations.push([i, y])
}
// Right
for (let i = x; i < length; i++){
if (lines[y][i] < val) relations.push([i, y])
}
return relations
}
function getPaths(relations, all, visited = []) {
let pathCount = relations.length // Every path of 0 length is still a path (right?)
if (visited.length === 0) ++pathCount
for (const [x, y] of relations) {
if (visited.includes(`${x}-${y}`)) continue
const nVisited = visited.slice(0)
nVisited.push(`${x}-${y}`)
pathCount += getPaths(all[`${x}-${y}`], all, nVisited)
}
return pathCount
}
// Build relational object
const relations = Object.fromEntries(lines
.map((line, y) => line.map((val, x) => ({
val,
x,
y,
relations: getRelations(x, y)
})))
.flat(1)
.map((obj) => [`${obj.x}-${obj.y}`, obj.relations]))
// Calculate paths
const paths = Object.keys(relations)
.map((point, ) => getPaths(relations[point], relations))
.reduce((a, b) => a + b)
console.log(paths)
//console.log("Took", (performance.now() - start) / 1000 + "s")

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
9

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
135

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
57

Test 4

Group: 2, 3

Verdict: ACCEPTED

input
100
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
10000

user output
10000

Test 5

Group: 2, 3

Verdict:

input
100
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
187458477

user output
(empty)

Test 6

Group: 2, 3

Verdict:

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
(empty)

Test 7

Group: 3

Verdict:

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1000000

user output
(empty)

Test 8

Group: 3

Verdict:

input
1000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
229147081

user output
(empty)

Test 9

Group: 3

Verdict:

input
1000
520283 805991 492643 75254 527...

correct output
951147313

user output
(empty)