message stringlengths 2 65.1k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 0 108k | cluster float64 14 14 | __index_level_0__ int64 0 217k |
|---|---|---|---|---|---|
Provide a correct Python 3 solution for this coding contest problem.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair (i，j) a friendly pair if the following condition is met.... | instruction | 0 | 68,028 | 14 | 136,056 |
"Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
x=0
for i in range(n):
if i==a[a[i]-1]-1:x+=1
print(x//2)
``` | output | 1 | 68,028 | 14 | 136,057 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,029 | 14 | 136,058 |
Yes | output | 1 | 68,029 | 14 | 136,059 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,030 | 14 | 136,060 |
Yes | output | 1 | 68,030 | 14 | 136,061 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,031 | 14 | 136,062 |
Yes | output | 1 | 68,031 | 14 | 136,063 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,032 | 14 | 136,064 |
Yes | output | 1 | 68,032 | 14 | 136,065 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,033 | 14 | 136,066 |
No | output | 1 | 68,033 | 14 | 136,067 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,034 | 14 | 136,068 |
No | output | 1 | 68,034 | 14 | 136,069 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,035 | 14 | 136,070 |
No | output | 1 | 68,035 | 14 | 136,071 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N rabbits, numbered 1 through N.
The i-th (1≤i≤N) rabbit likes rabbit a_i. Note that no rabbit can like itself, that is, a_i≠i.
For a pair of rabbits i and j (i＜j), we call the pair ... | instruction | 0 | 68,036 | 14 | 136,072 |
No | output | 1 | 68,036 | 14 | 136,073 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,262 | 14 | 136,524 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
import sys
import collections
from collections import Counter, deque
import itertools
import math
import timeit
#########################
# imgur.com/Pkt7iIf.png #
#########################
def sieve(n):
if n < 2: return list()
prime = [True for _ in ... | output | 1 | 68,262 | 14 | 136,525 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,263 | 14 | 136,526 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
'''Author- Akshit Monga'''
from sys import stdin, stdout
input = stdin.readline
from collections import deque
t = 1
for _ in range(t):
n,m=map(int,input().split())
arr=[int(x) for x in input().split()]
ans=0
mans=[]
taken=deque(arr.copy())
... | output | 1 | 68,263 | 14 | 136,527 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,264 | 14 | 136,528 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
from collections import deque
bfs_queue = deque()
n, m = map(int, input().split())
y = {}
ans = 0
anses = []
def bfs():
global m, ans
while len(bfs_queue):
if m <= 0:
break
f = bfs_queue.popleft()
if y.get(f) == 0:
... | output | 1 | 68,264 | 14 | 136,529 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,265 | 14 | 136,530 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
n,m=[int(x) for x in input().split()]
a=list(sorted([int(x) for x in input().split()]))
b=[a[i]-a[i-1]-1 for i in range(1,n)]
c=set()
for i in range(n-1):
if b[i]!=0:
c.add(i)
res=[]
su=0
x=1
while m!=0:
if m>2:
res.extend([a[0]-x,a[-1]+... | output | 1 | 68,265 | 14 | 136,531 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,266 | 14 | 136,532 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
def oneLineArrayPrint(arr):
print(' '.join([str(x) for x in arr]))
from queue import deque
n,m=[int(x) for x in input().split()]
a=[int(z) for z in input().split()]
occupiedPositions=set()
for x in a:
occupiedPositions.add(x) #all trees
ans=[]
posi... | output | 1 | 68,266 | 14 | 136,533 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,267 | 14 | 136,534 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
import sys
#556940
def binsearch(val, mas):
left = -1
right = len(mas) - 1
while right > left + 1:
mid = (right + left) // 2
if mas[mid] < val:
left = mid
else:
right = mid
try:
return min... | output | 1 | 68,267 | 14 | 136,535 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,268 | 14 | 136,536 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
n,m=map(int,input().strip().split())
arr=list(map(int,input().strip().split()))
d={}
q=[]
for i in arr:
d[i]=0
q.append(i)
ans=[]
v=0
index=0
while(len(ans)!=m):
x=q[index]
if x-1 not in d :
d[x-1]=d[x]+1
ans.append(x-1)
q.append(x-1)
v=v+d[x-1... | output | 1 | 68,268 | 14 | 136,537 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christmas tree, by the human or not occupied at all. No... | instruction | 0 | 68,269 | 14 | 136,538 |
Tags: graphs, greedy, shortest paths
Correct Solution:
```
po, men = map(int, input().split())
a = {int(i) for i in input().split()}
f = {*a}
r = set()
k = 1
s = 0
while len(r) < men:
b = set()
for i in a:
for p in -1, 1:
if i + p*k not in f:
if len(r) < men:
... | output | 1 | 68,269 | 14 | 136,539 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,270 | 14 | 136,540 |
Yes | output | 1 | 68,270 | 14 | 136,541 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,271 | 14 | 136,542 |
Yes | output | 1 | 68,271 | 14 | 136,543 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,272 | 14 | 136,544 |
Yes | output | 1 | 68,272 | 14 | 136,545 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,273 | 14 | 136,546 |
Yes | output | 1 | 68,273 | 14 | 136,547 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,274 | 14 | 136,548 |
No | output | 1 | 68,274 | 14 | 136,549 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,275 | 14 | 136,550 |
No | output | 1 | 68,275 | 14 | 136,551 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,276 | 14 | 136,552 |
No | output | 1 | 68,276 | 14 | 136,553 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n Christmas trees on an infinite number line. The i-th tree grows at the position x_i. All x_i are guaranteed to be distinct.
Each integer point can be either occupied by the Christma... | instruction | 0 | 68,277 | 14 | 136,554 |
No | output | 1 | 68,277 | 14 | 136,555 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,914 | 14 | 137,828 |
Tags: constructive algorithms, math
Correct Solution:
```
m,n,a = 1000000007,int(input()),input().split()
print((pow(2,n-1,m)-1 - sum(pow(2,a.count(x),m)-1 for x in set(a) if x != '-1')) % m)
``` | output | 1 | 68,914 | 14 | 137,829 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,915 | 14 | 137,830 |
Tags: constructive algorithms, math
Correct Solution:
```
n = int(input())
a = [int(i) for i in input().split()]
b = [0] * (n + 1)
sum = 2 ** (n - 1) - 1
for i in a:
if(i > 0):
b[i] = b[i] + 1
for i in b:
sum = sum - 2 ** i + 1
print(sum % 1000000007)
``` | output | 1 | 68,915 | 14 | 137,831 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,916 | 14 | 137,832 |
Tags: constructive algorithms, math
Correct Solution:
```
input();a=input().split();print((2**(len(a)-1)-1-sum(2**a.count(x)-1for x in{*a}-{'-1'}))%(10**9+7))
``` | output | 1 | 68,916 | 14 | 137,833 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,917 | 14 | 137,834 |
Tags: constructive algorithms, math
Correct Solution:
```
m = 1000000007
n = int(input())
a = input().split()
print((pow(2,n-1,m)-1 - sum(pow(2,a.count(x),m)-1 for x in set(a) if x != '-1')) % m)
``` | output | 1 | 68,917 | 14 | 137,835 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,918 | 14 | 137,836 |
Tags: constructive algorithms, math
Correct Solution:
```
m = 1000000007
n = int(input())
a = list(map(int, input().split()))
print((pow(2,n-1,m)-1 - sum(pow(2,a.count(x),m)-1 for x in set(a) if x != -1)) % m)
``` | output | 1 | 68,918 | 14 | 137,837 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,919 | 14 | 137,838 |
Tags: constructive algorithms, math
Correct Solution:
```
n=int(input())
a=input().split()
print((2**(n-1)-1-sum([2**a.count(x)-1 for x in set(a)-set(['-1'])]))%(10**9+7))
``` | output | 1 | 68,919 | 14 | 137,839 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,920 | 14 | 137,840 |
Tags: constructive algorithms, math
Correct Solution:
```
n,a=int(input()),input().split();print((pow(2,n-1)-1-sum(pow(2,a.count(x))-1for x in{*a}-{'-1'}))%(10**9+7))
``` | output | 1 | 68,920 | 14 | 137,841 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily many acquired startups that are following it. ... | instruction | 0 | 68,921 | 14 | 137,842 |
Tags: constructive algorithms, math
Correct Solution:
```
from fractions import Fraction
from copy import copy
from random import randint
from collections import *
import sys
sys.setrecursionlimit(1500)
class F:
def __init__(self,m,n):
self.m = m
self.n = n
self.save = {}
def __call__(se... | output | 1 | 68,921 | 14 | 137,843 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily... | instruction | 0 | 68,922 | 14 | 137,844 |
Yes | output | 1 | 68,922 | 14 | 137,845 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily... | instruction | 0 | 68,923 | 14 | 137,846 |
Yes | output | 1 | 68,923 | 14 | 137,847 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily... | instruction | 0 | 68,924 | 14 | 137,848 |
Yes | output | 1 | 68,924 | 14 | 137,849 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily... | instruction | 0 | 68,925 | 14 | 137,850 |
Yes | output | 1 | 68,925 | 14 | 137,851 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n startups. Startups can be active or acquired. If a startup is acquired, then that means it has exactly one active startup that it is following. An active startup can have arbitrarily... | instruction | 0 | 68,926 | 14 | 137,852 |
No | output | 1 | 68,926 | 14 | 137,853 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Please pay attention to the unusual memory limit in this problem.
In a parallel universe, Satan is called "Trygub". For that reason, the letters of his namesake were deleted from the alphabet i... | instruction | 0 | 69,153 | 14 | 138,306 |
No | output | 1 | 69,153 | 14 | 138,307 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Please pay attention to the unusual memory limit in this problem.
In a parallel universe, Satan is called "Trygub". For that reason, the letters of his namesake were deleted from the alphabet i... | instruction | 0 | 69,154 | 14 | 138,308 |
No | output | 1 | 69,154 | 14 | 138,309 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,281 | 14 | 138,562 |
Tags: brute force, greedy, implementation
Correct Solution:
```
while True:
try:
def soln(n, m, s, t, stp):
stp.sort()
flg = True
if s > t:
flg = False
i = 1
j = 0
ans = []
while True:
fund = False
while j < m:
if stp[j][0] == i:
j += 1
fund = True
break
if ... | output | 1 | 69,281 | 14 | 138,563 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,282 | 14 | 138,564 |
Tags: brute force, greedy, implementation
Correct Solution:
```
n,m,s,f=list(map(int,input().split()));
d={};
for i in range(m):
t,l,r=list(map(int,input().split()));
d[t]=[l,r];
ans="";
for i in range(1,n+m):
if(s==f):
print(ans);
exit(0);
t=-1;
if(f<s):
t=s-1;
else:
... | output | 1 | 69,282 | 14 | 138,565 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,283 | 14 | 138,566 |
Tags: brute force, greedy, implementation
Correct Solution:
```
#------------------------template--------------------------#
import os
import sys
from math import *
from collections import *
# from fractions import *
# from heapq import*
from bisect import *
from io import BytesIO, IOBase
def vsInput():
sys.stdin =... | output | 1 | 69,283 | 14 | 138,567 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,284 | 14 | 138,568 |
Tags: brute force, greedy, implementation
Correct Solution:
```
R = lambda: map(int, input().split())
n, m, s, f = R()
if s < f:
d = 1
c = 'R'
else:
d = -1
c = 'L'
res = ""
i = 1
j = s
t, l, r = R()
k = 1
while j != f:
if i > t and k < m:
t, l, r = R()
k += 1
if i == t and (l <= j <= r or l <= j... | output | 1 | 69,284 | 14 | 138,569 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,285 | 14 | 138,570 |
Tags: brute force, greedy, implementation
Correct Solution:
```
n, m, s, f = [int(x) for x in input().split()]
now = 1
d = 1 if f > s else -1
step = 'R' if d == 1 else 'L'
ret = ""
for _ in range(m):
t, l, r = [int(x) for x in input().split()]
if t > now:
flag = False
while t > now:
... | output | 1 | 69,285 | 14 | 138,571 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,286 | 14 | 138,572 |
Tags: brute force, greedy, implementation
Correct Solution:
```
import sys
n,m,s,f=map(int,sys.stdin.readline().split())
L=[]
R=[]
T=[]
for i in range(m):
t,l,r=map(int,sys.stdin.readline().split())
T.append(t)
L.append(l)
R.append(r)
if(f>s):
i=s
step=1
ind=0
Ans=""
while(i!=f):
... | output | 1 | 69,286 | 14 | 138,573 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,287 | 14 | 138,574 |
Tags: brute force, greedy, implementation
Correct Solution:
```
n,m,s,f=list(map(int,input().split()))
if s>f:
a='L'
c=-1
elif s==f:
a='X'
c=0
else:
a='R'
c=1
l=[]
for i in range(m):
l.append(list(map(int,input().split())))
ans=''
if l[0][0]!=1:
d=l[0][0]-1
while s!=f and d>0:
... | output | 1 | 69,287 | 14 | 138,575 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the note to spy f. Xenia interrogates the spies in ... | instruction | 0 | 69,288 | 14 | 138,576 |
Tags: brute force, greedy, implementation
Correct Solution:
```
n,m,s,f=map(int,input().split())
t=dict();
for i in range(m):
t1,l1,r1=map(int,input().split())
t[t1]=(l1,r1);
pos=s;i=1;
while(1):
if(pos==f):
break
if i in t:
if t[i][0] <= pos<=t[i][1]:
print('X',end='')
... | output | 1 | 69,288 | 14 | 138,577 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the ... | instruction | 0 | 69,289 | 14 | 138,578 |
Yes | output | 1 | 69,289 | 14 | 138,579 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the vigorous detective faced n (n ≥ 2) foreign spies lined up in a row. We'll consider the spies numbered from 1 to n from left to right.
Spy s has an important note. He has to pass the ... | instruction | 0 | 69,290 | 14 | 138,580 |
Yes | output | 1 | 69,290 | 14 | 138,581 |
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