message stringlengths 2 49.9k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 446 108k | cluster float64 13 13 | __index_level_0__ int64 892 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Depth-first search (DFS) follows the strategy to search ”deeper” in the graph whenever possible. In DFS, edges are recursively explored out of the most recently discovered vertex $v$ that still ... | instruction | 0 | 80,796 | 13 | 161,592 |
No | output | 1 | 80,796 | 13 | 161,593 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,869 | 13 | 161,738 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
from sys import stdin, stdout
from collections import Counter, defaultdict
from itertools import permutations, combinations
raw_input = stdin.readline
pr = stdout.write
def in_num():
return int(raw_input())
def in_arr():
return ma... | output | 1 | 80,869 | 13 | 161,739 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,870 | 13 | 161,740 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
import io, os
input = io.StringIO(os.read(0, os.fstat(0).st_size).decode()).readline
maxx = 10 ** 9
n = int(input())
a = [None] + list(map(int, input().split()))
p = [None, None] + list(map(int, input().split()))
g = [[] for i in range(n +... | output | 1 | 80,870 | 13 | 161,741 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,871 | 13 | 161,742 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
import sys
from collections import deque
input = sys.stdin.readline
sys.setrecursionlimit(10**9)
n=int(input())
OP=[0]+list(map(int,input().split()))
f=list(map(int,input().split()))
CHLIST=[[] for i in range(n+1)]
for i in range(n-1):
... | output | 1 | 80,871 | 13 | 161,743 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,872 | 13 | 161,744 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
import sys
n = int(input())
minmax = list(map(int, input().split()))
childs = [[] for i in range(n)]
for idx, father in enumerate(list(map(int,input().split()))):
childs[father-1].append(idx+1)
stack = []
stack.append(0)
ans = [None f... | output | 1 | 80,872 | 13 | 161,745 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,873 | 13 | 161,746 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
import sys
import math
import collections
from pprint import pprint as pp
mod = 998244353
MAX = 10**15
def inp():
return map(int, input().split())
def array():
return list(map(int, input().split()))
def vector(size, val=0):
... | output | 1 | 80,873 | 13 | 161,747 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,874 | 13 | 161,748 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
from collections import defaultdict
from collections import deque
# import sys
# sys.setrecursionlimit(400000)
n = int(input())
tree = defaultdict(set)
node_type = list(map(int,input().split()))
#leaf = [True for x in range(n)]
values = [0 fo... | output | 1 | 80,874 | 13 | 161,749 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,875 | 13 | 161,750 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
from collections import deque
N = int(input())
mima = [-1] + list(map(int, input().split()))
par = [-1, -1] + list(map(int, input().split()))
leaf = set(range(1, N+1))
cld = [0]*(N+1)
for p in par:
cld[p] += 1
if p in leaf:
l... | output | 1 | 80,875 | 13 | 161,751 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,876 | 13 | 161,752 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
R = lambda: map(int, input().split())
n = int(input())
fcs = [0] + list(R())
ps = [0, 0] + list(R())
cs = [1] * (n + 1)
for i in range(2, n + 1):
cs[ps[i]] = 0
nc = sum(cs) - 1
for i in range(n, 1, -1):
if fcs[ps[i]] == 0:
cs[... | output | 1 | 80,876 | 13 | 161,753 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he wants to play with numbers on a rooted tree.
A ... | instruction | 0 | 80,877 | 13 | 161,754 |
Tags: binary search, dfs and similar, dp, greedy, trees
Correct Solution:
```
n=int(input())
op=[int(g) for g in input().split()]
parent=[int(g)-1 for g in input().split()]
tree=[[] for i in range(n)]
for i in range(n-1):
tree[parent[i]].append(i+1)
l=sum([1 for i in range(n) if len(tree[i])==0])
l1=[-1]*n
for i i... | output | 1 | 80,877 | 13 | 161,755 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,878 | 13 | 161,756 |
Yes | output | 1 | 80,878 | 13 | 161,757 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,879 | 13 | 161,758 |
Yes | output | 1 | 80,879 | 13 | 161,759 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,880 | 13 | 161,760 |
Yes | output | 1 | 80,880 | 13 | 161,761 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,881 | 13 | 161,762 |
Yes | output | 1 | 80,881 | 13 | 161,763 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,882 | 13 | 161,764 |
No | output | 1 | 80,882 | 13 | 161,765 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,883 | 13 | 161,766 |
No | output | 1 | 80,883 | 13 | 161,767 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,884 | 13 | 161,768 |
No | output | 1 | 80,884 | 13 | 161,769 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Now Serval is a junior high school student in Japari Middle School, and he is still thrilled on math as before.
As a talented boy in mathematics, he likes to play with numbers. This time, he w... | instruction | 0 | 80,885 | 13 | 161,770 |
No | output | 1 | 80,885 | 13 | 161,771 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a and b should intersect if and only if there is ... | instruction | 0 | 80,975 | 13 | 161,950 |
Tags: constructive algorithms, dfs and similar, dp, math, trees
Correct Solution:
```
import os
import sys
input = sys.stdin.buffer.readline
#sys.setrecursionlimit(int(3e5))
from collections import deque
from queue import PriorityQueue
import math
import copy
# list(map(int, input().split()))
########################... | output | 1 | 80,975 | 13 | 161,951 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a and b should intersect if and only if there is ... | instruction | 0 | 80,976 | 13 | 161,952 |
Tags: constructive algorithms, dfs and similar, dp, math, trees
Correct Solution:
```
n=int(input())
tr=[[]for i in range(n+9)]
for i in range(n-1):
u,v=list(map(int,input().split()))
tr[u].append(v)
tr[v].append(u)
dp,ans=[[0,0]for i in range(n+9)],0
stk,tot=[(1,-1)],0
for i in range(n):
u,fa=stk[i]
... | output | 1 | 80,976 | 13 | 161,953 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a ... | instruction | 0 | 80,977 | 13 | 161,954 |
No | output | 1 | 80,977 | 13 | 161,955 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a ... | instruction | 0 | 80,978 | 13 | 161,956 |
No | output | 1 | 80,978 | 13 | 161,957 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a ... | instruction | 0 | 80,979 | 13 | 161,958 |
No | output | 1 | 80,979 | 13 | 161,959 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a ... | instruction | 0 | 80,980 | 13 | 161,960 |
No | output | 1 | 80,980 | 13 | 161,961 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is an interactive problem.
You are given a tree — connected undirected graph without cycles. One vertex of the tree is special, and you have to find which one. You can ask questions in the... | instruction | 0 | 81,029 | 13 | 162,058 |
No | output | 1 | 81,029 | 13 | 162,059 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,030 | 13 | 162,060 |
Tags: binary search, data structures, greedy
Correct Solution:
```
MAX_H = int(2e5 + 20)
n, k = map(int, input().split())
l = list(map(int, input().split()))
l.sort()
cur = 1
cur_sum = 0
cur_level = 0
flag_seen = 1
flag_sum = 0
ans = flag_level = int(MAX_H - 1) # less is enough?
lazy = [0] * MAX_H
while len(l) > 0 and... | output | 1 | 81,030 | 13 | 162,061 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,031 | 13 | 162,062 |
Tags: binary search, data structures, greedy
Correct Solution:
```
class RangeBIT:
def __init__(self,N,indexed):
self.bit1 = [0] * (N+2)
self.bit2 = [0] * (N+2)
self.mode = indexed
def bitadd(self,a,w,bit):
x = a
while x <= (len(bit)-1):
bit[x] += w
... | output | 1 | 81,031 | 13 | 162,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,032 | 13 | 162,064 |
Tags: binary search, data structures, greedy
Correct Solution:
```
def check(d, k):
pos, cur, P = 0, 1, 0
total = 1
for i, x in enumerate(L):
while cur == 0:
pos += 1
P += add[pos]
if pos + 1 >= d:
break
cur... | output | 1 | 81,032 | 13 | 162,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,033 | 13 | 162,066 |
Tags: binary search, data structures, greedy
Correct Solution:
```
class RangeBIT:
def __init__(self,N,indexed):self.bit1 = [0] * (N+2);self.bit2 = [0] * (N+2);self.mode = indexed
def bitadd(self,a,w,bit):
x = a
while x <= (len(bit)-1):bit[x] += w;x += x & (-1 * x)
def bitsum(self,a,bit): ... | output | 1 | 81,033 | 13 | 162,067 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,034 | 13 | 162,068 |
Tags: binary search, data structures, greedy
Correct Solution:
```
MAX_H = int(2e5 + 20)
n, k = map(int, input().split())
l = list(map(int, input().split()))
l.sort()
cur = 1
cur_sum = 0
cur_level = 0
flag_seen = 1
flag_sum = 0
ans = flag_level = int(MAX_H - 1)
lazy = [0] * MAX_H
while l and cur_level + 2 < flag_level:... | output | 1 | 81,034 | 13 | 162,069 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,035 | 13 | 162,070 |
Tags: binary search, data structures, greedy
Correct Solution:
```
class RangeBIT:
def __init__(self,N,indexed):self.bit1 = [0] * (N+2);self.bit2 = [0] * (N+2);self.mode = indexed
def bitadd(self,a,w,bit):
x = a
while x <= (len(bit)-1):bit[x] += w;x += x & (-1 * x)
def bitsum(self,a,bit): ... | output | 1 | 81,035 | 13 | 162,071 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,036 | 13 | 162,072 |
Tags: binary search, data structures, greedy
Correct Solution:
```
import sys
from sys import stdin
class RangeBIT:
def __init__(self,N,indexed):
self.bit1 = [0] * (N+2)
self.bit2 = [0] * (N+2)
self.mode = indexed
def bitadd(self,a,w,bit):
x = a
while x <= (len(bit)... | output | 1 | 81,036 | 13 | 162,073 |
Provide tags and a correct Python 3 solution for this coding contest problem.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a chain of length x-1 with a new vertex connected ... | instruction | 0 | 81,037 | 13 | 162,074 |
Tags: binary search, data structures, greedy
Correct Solution:
```
MAX_H = int(4e5)
n, k = map(int, input().split())
l = list(map(int, input().split()))
l.sort()
cur = 1
cur_sum = 0
cur_level = 0
flag_seen = 1
flag_sum = 0
ans = flag_level = int(MAX_H - 1) # less is enough?
lazy = [0] * MAX_H
while len(l) > 0 and cur_... | output | 1 | 81,037 | 13 | 162,075 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,038 | 13 | 162,076 |
Yes | output | 1 | 81,038 | 13 | 162,077 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,039 | 13 | 162,078 |
Yes | output | 1 | 81,039 | 13 | 162,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,040 | 13 | 162,080 |
Yes | output | 1 | 81,040 | 13 | 162,081 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,041 | 13 | 162,082 |
No | output | 1 | 81,041 | 13 | 162,083 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,042 | 13 | 162,084 |
No | output | 1 | 81,042 | 13 | 162,085 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,043 | 13 | 162,086 |
No | output | 1 | 81,043 | 13 | 162,087 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
// We decided to drop the legend about the power sockets but feel free to come up with your own :^)
Define a chain:
* a chain of length 1 is a single vertex;
* a chain of length x is a c... | instruction | 0 | 81,044 | 13 | 162,088 |
No | output | 1 | 81,044 | 13 | 162,089 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,918 | 13 | 163,836 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
import sys
input = sys.stdin.buffer.readline
q = int(input())
INF = 10 ** 9
for _ in range(q):
n = int(input())
a = list(map(int, input().split())) + [-1]
res = [1]
cnt = 1
for i in range(1, n):
if a[i] < a[i + 1]:... | output | 1 | 81,918 | 13 | 163,837 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,919 | 13 | 163,838 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" n... | output | 1 | 81,919 | 13 | 163,839 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,920 | 13 | 163,840 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
tests = int(input())
for test in range(tests):
n = int(input())
a = [int(i) for i in input().split()][1:]
b = [1]
for i in range(1, n - 1):
if a[i] > a[i - 1]:
b[-1] += 1
else:
b.append(1)
u = ... | output | 1 | 81,920 | 13 | 163,841 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,921 | 13 | 163,842 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
levels = [0]*n
index=0
for i in range(1, n):
if a[i]<a[i-1]:
index+=1
levels[i]=levels[index]+1
#print(levels)
print(levels[-1])
``` | output | 1 | 81,921 | 13 | 163,843 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,922 | 13 | 163,844 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
import sys
max_int = 1000000001 # 10^9+1
min_int = -max_int
t = int(input())
for _t in range(t):
n = int(sys.stdin.readline())
a = list(map(int, sys.stdin.readline().split()))
if len(a) == 1:
print(0)
continue
cur_level ... | output | 1 | 81,922 | 13 | 163,845 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,923 | 13 | 163,846 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
# Question: F - 1
# Assignment 10
# Daniel Perez, bd2255
# Based on the operation on how BFS works which essentially visits the
# levels of the tree first before moving on to the next level.
C = int(input())
for i in range(C):
SIZE = int(input())
... | output | 1 | 81,923 | 13 | 163,847 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,924 | 13 | 163,848 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
t = int(input())
for i in range(t):
n = int(input())
arr = [int(x) for x in input().split()]
visited = [(0, 0)]
vispointer = 0
for node in range(1, n):
if arr[node] > arr[node - 1]:
visited.append((arr[node], vi... | output | 1 | 81,924 | 13 | 163,849 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS on his tree, starting from the root. BFS can be... | instruction | 0 | 81,925 | 13 | 163,850 |
Tags: graphs, greedy, shortest paths, trees
Correct Solution:
```
t = int(input())
for case in range(t):
n = int(input())
a = list(map(int, input().split()))
last = 1
prev_children = 1
children = 0
h = 1
for i in range(1, n):
cur = a[i]
if cur > last:
children... | output | 1 | 81,925 | 13 | 163,851 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS ... | instruction | 0 | 81,926 | 13 | 163,852 |
Yes | output | 1 | 81,926 | 13 | 163,853 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Monocarp had a tree which consisted of n vertices and was rooted at vertex 1. He decided to study BFS ([Breadth-first search](https://en.wikipedia.org/wiki/Breadth-first_search)), so he ran BFS ... | instruction | 0 | 81,927 | 13 | 163,854 |
Yes | output | 1 | 81,927 | 13 | 163,855 |
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