CSES - NOI 2019

CSES - NOI 2019 - Results

Submission details
Task:	Distance Code
Sender:	Gamithra Marga
Submission time:	2019-03-06 13:35:15 +0200
Language:	Python3
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0
#3	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.04 s	1, 2, 3	details
#2	ACCEPTED	0.04 s	1, 2, 3	details
#3	ACCEPTED	0.05 s	1, 2, 3	details
#4	ACCEPTED	0.05 s	1, 2, 3	details
#5	ACCEPTED	0.04 s	1, 2, 3	details
#6	ACCEPTED	0.05 s	1, 2, 3	details
#7	ACCEPTED	0.05 s	1, 2, 3	details
#8	ACCEPTED	0.04 s	1, 2, 3	details
#9	ACCEPTED	0.04 s	1, 2, 3	details
#10	WRONG ANSWER	0.04 s	1, 2, 3	details
#11	ACCEPTED	0.04 s	1, 2, 3	details
#12	ACCEPTED	0.05 s	2, 3	details
#13	ACCEPTED	0.34 s	2, 3	details
#14	WRONG ANSWER	0.06 s	2, 3	details
#15	WRONG ANSWER	0.05 s	2, 3	details
#16	TIME LIMIT EXCEEDED	--	3	details
#17	TIME LIMIT EXCEEDED	--	3	details
#18	TIME LIMIT EXCEEDED	--	3	details
#19	TIME LIMIT EXCEEDED	--	3	details
#20	ACCEPTED	0.05 s	1, 2, 3	details

Code

#!/usr/bin/python3
 
import sys
 
do = int(sys.stdin.readline())
n = int(sys.stdin.readline())
 
graph = {}
visited = []
cur_ans = -1
found = False
 
def findParent(cur_node, left_to_walk):
    global found, cur_ans
    #print("now checking node", cur_node, "left to walk", left_to_walk, found)
    if not found:
        visited.append(cur_node)
        if left_to_walk == 1:
            if len(graph[cur_node])<3:
                #print("node has space", len(graph[cur_node]))
                if cur_node == 1 and len(graph[cur_node]) > 1:
                    return
                else:
                    cur_ans = cur_node
                    found = True
                    return
            else: return
        else:
            children = graph[cur_node]
            for c in children:
                if c not in visited:
                    return findParent(c, left_to_walk -1)
    else: return
 
if do == 1:
    edges = {}
    cur = [[] for i in range(0, n+1)]
    left = [i for i in range(1, n+1)]
    removed = []
 
    root_node = -1
 
    for i in range(n-1):
        a, b = [int(x) for x in sys.stdin.readline().split(" ")]
        if a not in edges:
            edges[a] = []
        if b not in edges:
            edges[b] = []
        edges[a].append(b)
        edges[b].append(a)
        cur[a].append(b)
        cur[b].append(a)
 
    if n == 2:
        print("2 1")
        sys.exit()
 
    for node in range(1, n+1):
        if len(cur[node]) == 2:
            root_node = node
            break
    # left to add condition for when is just 2 nodes
 
    while len(left) > 1:
        for i in range(1, n+1):
            if len(cur[i]) == 1 and i != root_node:
                cur[cur[i][0]].remove(i)
                removed.append(i)
                left.remove(i)
                cur[i] = []
    removed.append(left[0])
    print(" ".join([str(x) for x in removed]))
 
elif do == 2:
    code = [int(x) for x in sys.stdin.readline().split(" ")]
    code.reverse()
 
    if n == 2:
        print("2 1")
        sys.exit()
    #edges = {}
    #graph = [[] for i in range(0, n+1)]
    placed = [1, 2]
    graph[1] = [2]
    graph[2] = [1]
    last = 2
 
    left = [i for i in range(3, n+1)]
    for i in range(3, n+1):
        to_walk = code[i-2]
        #find a parent
        visited = []
        found = False
 
        findParent(last, to_walk)
        a = cur_ans
 
        if i not in graph:
            graph[i] = []
        graph[i].append(a)
        graph[a].append(i)
 
        placed.append(i)
 
        last = i
 
    done = []
    for i in range(1, n+1):
        for c in graph[i]:
            if c not in done:
                print(i, c)
        done.append(i)
    #print(graph)
sys.exit()

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 2 2 1` view save

correct output
(empty)

user output
`2 1` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 3 3 1 2 1` view save

correct output
(empty)

user output
`1 2 1 3` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 1 3 2 4` view save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 2 3 2 4` view save

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 1 4 2 3 4 5` view save

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 1 3 2 4 2 5` view save

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 2 3 2 4 2 5` view save

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 10 9 3 8 9 2 9 ...` view save

correct output
(empty)

user output
`1 2 2 3 2 4 2 5 2 6 ...` view save

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 1 5 2 3 3 4 4 6 ...` view save

Test 10

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`1 10 10 4 9 1 4 7 ...` view save

correct output
(empty)

user output
`1 2 2 3 3 4 3 7 3 8 ...` view save

Test 11

Group: 1, 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`1 2 1 3 2 5 2 9 3 4 ...` view save

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
`1 500 10 6 6 255 6 428 ...` view save

correct output
(empty)

user output
`1 2 1 3 1 4 1 5 1 6 ...` Truncated

Test 13

Group: 2, 3

Verdict: ACCEPTED

input
`1 500 152 466 451 313 158 479 ...` view save

correct output
(empty)

user output
`1 2 1 214 2 3 3 4 4 5 ...` Truncated

Test 14

Group: 2, 3

Verdict: WRONG ANSWER

input
`1 500 109 440 330 190 443 161 ...` view save

correct output
(empty)

user output
`1 2 1 21 2 3 2 35 3 4 ...` Truncated

Test 15

Group: 2, 3

Verdict: WRONG ANSWER

input
`1 500 144 373 257 233 341 318 ...` view save

correct output
(empty)

user output
`1 2 1 227 2 3 2 326 2 327 ...` Truncated

Test 16

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`1 100000 54983 75172 93807 75172 44082 75172 ...` view save

correct output
(empty)

user output
(empty)

Test 17

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`1 100000 88863 19059 86423 76688 98536 95984 ...` view save

correct output
(empty)

user output
(empty)

Test 18

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`1 100000 59979 6389 19097 24999 27846 82330 ...` view save

correct output
(empty)

user output
(empty)

Test 19

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`1 100000 58761 66001 25102 51081 98625 67861 ...` view save

correct output
(empty)

user output
(empty)

Test 20

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 6 2 1 3 2 4 2 ...` view save

correct output
(empty)

user output
`1 2 1 3 1 4 2 5 2 6` view save

NOI 2019

Distance Code

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

Tasks

Submissions (Gamithra Marga)