CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:Finnduino
Submission time:2022-11-09 19:38:22 +0200
Language:Java
Status:READY
Result:28
Feedback
groupverdictscore
#1ACCEPTED28
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.08 s1, 2, 3details
#2ACCEPTED0.08 s1, 2, 3details
#3ACCEPTED0.08 s1, 2, 3details
#4ACCEPTED0.17 s2, 3details
#50.16 s2, 3details
#60.20 s2, 3details
#7--3details
#8--3details
#9--3details

Code

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.lang.System;
import java.util.Arrays;
public class DGrid {
public static void main(String[] Args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int GridSize = Integer.parseInt(br.readLine());
int GridSizeSq = GridSize * GridSize;
int[][] Grid1 = new int[GridSizeSq][3];
// int[][] SortedGrid = Grid1;
int paths = 0;
int counter = 0;
for (int i = 0; i < GridSize; i++) {
int[] NodeStates = Arrays.stream(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
for (int j : NodeStates) {
Grid1[counter] = new int[] { counter, j, 1 };
counter += 1;
}
}
int[][] Grid = Grid1.clone();
Arrays.sort(Grid1, (a, b) -> Integer.compare(a[1], b[1]));
// Arrays.sort(SortedGrid, (a,b) ->Integer)
for (int[] member : Grid1) {
// CheckDirections(member[0], Grid1, paths, GridSize);
int position = member[0];
// int[][] Grid = Grid1;
int y = (position / GridSize);
int x = position - y * GridSize;
int pathsInMe = Grid[position][2];
// Check up
for (int offset = 1; offset < y + 1; offset++) {
if (Grid[position - GridSize * offset][1] > Grid[position][1]) {
Grid[position - GridSize * offset][2] += pathsInMe;
}
}
// Check down
for (int offset = 1; offset < GridSize - y; offset++) {
if (Grid[position + GridSize * offset][1] > Grid[position][1]) {
Grid[position + GridSize * offset][2] += pathsInMe;
}
}
// Check left
for (int offset = 1; offset < x + 1; offset++) {
if (Grid[position - offset][1] > Grid[position][1]) {
Grid[position - offset][2] += pathsInMe;
}
}
// Check right
for (int offset = 1; offset < GridSize - x; offset++) {
if (Grid[position + offset][1] > Grid[position][1]) {
Grid[position + offset][2] += pathsInMe;
}
}
paths += Grid[position][2];
}
System.out.println(paths);
}
// public static void CheckDirections(int position,int[][] Grid,int paths, int
// GridSize){
// }
}

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
-809668533

Test 6

Group: 2, 3

Verdict:

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
348370085

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)