message stringlengths 2 45.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 254 108k | cluster float64 3 3 | __index_level_0__ int64 508 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tsuruga Castle, a symbol of Aizuwakamatsu City, was named "Tsuruga Castle" after Gamo Ujisato built a full-scale castle tower. You can overlook the Aizu basin from the castle tower. On a clear d... | instruction | 0 | 63,044 | 3 | 126,088 |
Yes | output | 1 | 63,044 | 3 | 126,089 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tsuruga Castle, a symbol of Aizuwakamatsu City, was named "Tsuruga Castle" after Gamo Ujisato built a full-scale castle tower. You can overlook the Aizu basin from the castle tower. On a clear d... | instruction | 0 | 63,045 | 3 | 126,090 |
No | output | 1 | 63,045 | 3 | 126,091 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tsuruga Castle, a symbol of Aizuwakamatsu City, was named "Tsuruga Castle" after Gamo Ujisato built a full-scale castle tower. You can overlook the Aizu basin from the castle tower. On a clear d... | instruction | 0 | 63,046 | 3 | 126,092 |
No | output | 1 | 63,046 | 3 | 126,093 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tsuruga Castle, a symbol of Aizuwakamatsu City, was named "Tsuruga Castle" after Gamo Ujisato built a full-scale castle tower. You can overlook the Aizu basin from the castle tower. On a clear d... | instruction | 0 | 63,047 | 3 | 126,094 |
No | output | 1 | 63,047 | 3 | 126,095 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tsuruga Castle, a symbol of Aizuwakamatsu City, was named "Tsuruga Castle" after Gamo Ujisato built a full-scale castle tower. You can overlook the Aizu basin from the castle tower. On a clear d... | instruction | 0 | 63,048 | 3 | 126,096 |
No | output | 1 | 63,048 | 3 | 126,097 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Problem statement
There is a town with a size of H in the north-south direction and W in the east-west direction. In the town, square plots with a side length of 1 are maintained without gaps, ... | instruction | 0 | 63,112 | 3 | 126,224 |
No | output | 1 | 63,112 | 3 | 126,225 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once upon a time there was only one router in the well-known company Bmail. Years went by and over time new routers were purchased. Every time they bought a new router, they connected it to one ... | instruction | 0 | 63,174 | 3 | 126,348 |
Yes | output | 1 | 63,174 | 3 | 126,349 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once upon a time there was only one router in the well-known company Bmail. Years went by and over time new routers were purchased. Every time they bought a new router, they connected it to one ... | instruction | 0 | 63,175 | 3 | 126,350 |
Yes | output | 1 | 63,175 | 3 | 126,351 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once upon a time there was only one router in the well-known company Bmail. Years went by and over time new routers were purchased. Every time they bought a new router, they connected it to one ... | instruction | 0 | 63,177 | 3 | 126,354 |
No | output | 1 | 63,177 | 3 | 126,355 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Once upon a time there was only one router in the well-known company Bmail. Years went by and over time new routers were purchased. Every time they bought a new router, they connected it to one ... | instruction | 0 | 63,179 | 3 | 126,358 |
No | output | 1 | 63,179 | 3 | 126,359 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n detachments on the surface, numbered from 1 to n, the i-th detachment is placed in a point with coordinates (x_i, y_i). All detachments are placed in different points.
Brimstone should visit each detachment at least once. You ca... | instruction | 0 | 63,330 | 3 | 126,660 |
Tags: binary search, data structures, dfs and similar, dsu, graphs, implementation
Correct Solution:
```
# import numpy as npy
import functools
import math
n=int(input())
x=[0 for i in range(n+2)]
y=[0 for i in range(n+2)]
adj=[[] for i in range(n+2)]
idx=[]
idy=[]
for i in range(n):
x[i],y[i]=map(int,input().spli... | output | 1 | 63,330 | 3 | 126,661 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n detachments on the surface, numbered from 1 to n, the i-th detachment is placed in a point with coordinates (x_i, y_i). All detachments are placed in different points.
Brimstone sho... | instruction | 0 | 63,331 | 3 | 126,662 |
No | output | 1 | 63,331 | 3 | 126,663 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n detachments on the surface, numbered from 1 to n, the i-th detachment is placed in a point with coordinates (x_i, y_i). All detachments are placed in different points.
Brimstone sho... | instruction | 0 | 63,332 | 3 | 126,664 |
No | output | 1 | 63,332 | 3 | 126,665 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n detachments on the surface, numbered from 1 to n, the i-th detachment is placed in a point with coordinates (x_i, y_i). All detachments are placed in different points.
Brimstone sho... | instruction | 0 | 63,333 | 3 | 126,666 |
No | output | 1 | 63,333 | 3 | 126,667 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As you very well know, the whole Universe traditionally uses three-dimensional Cartesian system of coordinates. In this system each point corresponds to three real coordinates (x, y, z). In this coordinate system, the distance between the ce... | instruction | 0 | 63,418 | 3 | 126,836 |
Tags: math, ternary search
Correct Solution:
```
sa=int(input())
a, b, c=map(int, input().split(' '))
if a==0 and b==0 and c==0:
print(0, 0, 0)
else:
x=(a*sa/(a+b+c))
y=(b*sa/(a+b+c))
z=(c*sa/(a+b+c))
print(x, y, z)
``` | output | 1 | 63,418 | 3 | 126,837 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As you very well know, the whole Universe traditionally uses three-dimensional Cartesian system of coordinates. In this system each point corresponds to three real coordinates (x, y, z). In this coordinate system, the distance between the ce... | instruction | 0 | 63,419 | 3 | 126,838 |
Tags: math, ternary search
Correct Solution:
```
S = int(input())
v = [int(x) for x in input().strip().split()]
print(*[S * v[i] / sum(v) for i in range(3)] if sum(v) != 0 else "000")
``` | output | 1 | 63,419 | 3 | 126,839 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As you very well know, the whole Universe traditionally uses three-dimensional Cartesian system of coordinates. In this system each point corresponds to three real coordinates (x, y, z). In this coordinate system, the distance between the ce... | instruction | 0 | 63,420 | 3 | 126,840 |
Tags: math, ternary search
Correct Solution:
```
S = int(input())
v = [int(x) for x in input().strip().split()]
zeroes = v.count(0)
total = sum(v)
ans = []
if zeroes == 0:
ans = [S * v[i] / total for i in range(3)]
elif zeroes == 1:
for i in range(3):
if v[i] == 0:
total -= v[i]
for i in... | output | 1 | 63,420 | 3 | 126,841 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N balls in the xy-plane. The coordinates of the i-th of them is (x_i, i). Thus, we have one ball on each of the N lines y = 1, y = 2, ..., y = N.
In order to collect these balls, Snuk... | instruction | 0 | 63,856 | 3 | 127,712 |
Yes | output | 1 | 63,856 | 3 | 127,713 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N balls in the xy-plane. The coordinates of the i-th of them is (x_i, i). Thus, we have one ball on each of the N lines y = 1, y = 2, ..., y = N.
In order to collect these balls, Snuk... | instruction | 0 | 63,859 | 3 | 127,718 |
Yes | output | 1 | 63,859 | 3 | 127,719 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N balls in the xy-plane. The coordinates of the i-th of them is (x_i, i). Thus, we have one ball on each of the N lines y = 1, y = 2, ..., y = N.
In order to collect these balls, Snuk... | instruction | 0 | 63,862 | 3 | 127,724 |
No | output | 1 | 63,862 | 3 | 127,725 |
Provide a correct Python 3 solution for this coding contest problem.
Evil organizations that attempt to conquer the world are everywhere, regardless of age, east or west fiction, non-fiction, but what on earth did they try to conquer the world? I suddenly thought about that because I was also planning to conquer the w... | instruction | 0 | 63,943 | 3 | 127,886 |
"Correct Solution:
```
E = 10 ** -9
MOD = 100000007
fact_result = {}
while True:
n = int(input())
if n == 0: break
plst = []
wlst = []
diff = []
to = [None for _ in range(n)]
for i in range(n):
p, Id, w = input().split()
to[i] = int(Id)
plst.append(float(p))
wlst.append(float(w))
diff... | output | 1 | 63,943 | 3 | 127,887 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,185 | 3 | 128,370 |
Tags: geometry, hashing, number theory
Correct Solution:
```
from sys import stdin, stdout
from collections import defaultdict
import math
def main():
t = int(stdin.readline())
for _ in range(t):
n = int(stdin.readline())
rec = defaultdict(int)
cnt= 0
for _ in range(n):
... | output | 1 | 64,185 | 3 | 128,371 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,186 | 3 | 128,372 |
Tags: geometry, hashing, number theory
Correct Solution:
```
import sys
LI=lambda:list(map(int, sys.stdin.readline().split()))
MI=lambda:map(int, sys.stdin.readline().split())
SI=lambda:sys.stdin.readline().strip('\n')
II=lambda:int(sys.stdin.readline())
# sys.stdin=open('input.txt')
# sys.stdout=open('output.txt', 'w'... | output | 1 | 64,186 | 3 | 128,373 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,187 | 3 | 128,374 |
Tags: geometry, hashing, number theory
Correct Solution:
```
import sys,os,io
from collections import defaultdict
from math import gcd
input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline
for _ in range (int(input())):
n = int(input())
vect = defaultdict(lambda : 0)
for i in range (n):
x,y,... | output | 1 | 64,187 | 3 | 128,375 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,188 | 3 | 128,376 |
Tags: geometry, hashing, number theory
Correct Solution:
```
import math
from sys import stdin
tt = int(stdin.readline())
for loop in range(tt):
n = int(stdin.readline())
dic = {}
ans = 0
for i in range(n):
x,y,u,v = map(int,stdin.readline().split())
u -= x
v -= y
... | output | 1 | 64,188 | 3 | 128,377 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,189 | 3 | 128,378 |
Tags: geometry, hashing, number theory
Correct Solution:
```
import sys
LI=lambda:list(map(int, sys.stdin.readline().split()))
MI=lambda:map(int, sys.stdin.readline().split())
SI=lambda:sys.stdin.readline().strip('\n')
II=lambda:int(sys.stdin.readline())
# sys.stdin=open('input.txt')
# sys.stdout=open('output.txt', 'w'... | output | 1 | 64,189 | 3 | 128,379 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,190 | 3 | 128,380 |
Tags: geometry, hashing, number theory
Correct Solution:
```
# Legends Always Come Up with Solution
# Author: Manvir Singh
import os
from io import BytesIO, IOBase
import sys
from collections import defaultdict, deque, Counter
from math import sqrt, pi, ceil, log, inf, gcd, floor
from itertools import combinations, pe... | output | 1 | 64,190 | 3 | 128,381 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,191 | 3 | 128,382 |
Tags: geometry, hashing, number theory
Correct Solution:
```
import sys, math
input = sys.stdin.readline
from collections import Counter
for _ in range(int(input())):
n = int(input())
A = [list(map(int, input().split())) for _ in range(n)]
cnt = Counter()
ans = 0
for a, b, c, d in A:
x = c ... | output | 1 | 64,191 | 3 | 128,383 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rotate clockwise synchronously with the same angul... | instruction | 0 | 64,192 | 3 | 128,384 |
Tags: geometry, hashing, number theory
Correct Solution:
```
import sys
input = sys.stdin.readline
# sys.setrecursionlimit(10**9)
from sys import stdin, stdout
from collections import defaultdict, Counter
M = 10**9+7
from fractions import Fraction
def main():
for _ in range(int(input())):
dp = defaultdict(... | output | 1 | 64,192 | 3 | 128,385 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,193 | 3 | 128,386 |
Yes | output | 1 | 64,193 | 3 | 128,387 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,194 | 3 | 128,388 |
Yes | output | 1 | 64,194 | 3 | 128,389 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,195 | 3 | 128,390 |
Yes | output | 1 | 64,195 | 3 | 128,391 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,196 | 3 | 128,392 |
Yes | output | 1 | 64,196 | 3 | 128,393 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,197 | 3 | 128,394 |
No | output | 1 | 64,197 | 3 | 128,395 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,198 | 3 | 128,396 |
No | output | 1 | 64,198 | 3 | 128,397 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,199 | 3 | 128,398 |
No | output | 1 | 64,199 | 3 | 128,399 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n persons located on a plane. The i-th person is located at the point (x_i, y_i) and initially looks at the point (u_i, v_i).
At the same moment of time, all persons will start to rot... | instruction | 0 | 64,200 | 3 | 128,400 |
No | output | 1 | 64,200 | 3 | 128,401 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Your task is the exact same as for the easy version. But this time, the marmots subtract the village's population P from their random number before responding to Heidi's request.
Also, there are now villages with as few as a single inhabita... | instruction | 0 | 64,499 | 3 | 128,998 |
Tags: math, probabilities
Correct Solution:
```
def sampleVariance(V):
X = sum(V) / len(V)
S = 0.0
for x in V:
S += (X-x)**2
S /= (len(V)-1)
return (X, S)
#That awkward moment when you realized that variance is sigma^2 but you just took the stat course this semester
for i in range(int(inpu... | output | 1 | 64,499 | 3 | 128,999 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Your task is the exact same as for the easy version. But this time, the marmots subtract the village's population P from their random number before responding to Heidi's request.
Also, there ar... | instruction | 0 | 64,501 | 3 | 129,002 |
No | output | 1 | 64,501 | 3 | 129,003 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Your task is the exact same as for the easy version. But this time, the marmots subtract the village's population P from their random number before responding to Heidi's request.
Also, there ar... | instruction | 0 | 64,502 | 3 | 129,004 |
No | output | 1 | 64,502 | 3 | 129,005 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Your task is the exact same as for the easy version. But this time, the marmots subtract the village's population P from their random number before responding to Heidi's request.
Also, there ar... | instruction | 0 | 64,503 | 3 | 129,006 |
No | output | 1 | 64,503 | 3 | 129,007 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Your task is the exact same as for the easy version. But this time, the marmots subtract the village's population P from their random number before responding to Heidi's request.
Also, there ar... | instruction | 0 | 64,504 | 3 | 129,008 |
No | output | 1 | 64,504 | 3 | 129,009 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,690 | 3 | 129,380 |
"Correct Solution:
```
n=int(input())
x=list(map(int,input().split()))
m=10**9+7
c=1
a=1
for i in range(n-1):c=min((x[i]+3)//2,c+1);a=a*c%m
print(a%m)
``` | output | 1 | 64,690 | 3 | 129,381 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,691 | 3 | 129,382 |
"Correct Solution:
```
N = int(input())
X = list(map(int, input().split()))
MOD = 10**9 + 7
cnt = 1
j = 1
n_to_remove = 0
runner = 1
for i,x in enumerate(X):
j = i+1 - n_to_remove
if runner > x:
n_to_remove += 1
runner = x-1
runner += 2
cnt = (cnt*j)%MOD
print(cnt)
``` | output | 1 | 64,691 | 3 | 129,383 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,692 | 3 | 129,384 |
"Correct Solution:
```
import sys
from math import factorial
def debug(x, table):
for name, val in table.items():
if x is val:
print('DEBUG:{} -> {}'.format(name, val), file=sys.stderr)
return None
def solve():
N = int(input())
X = [int(i) for i in input().split()]
MOD ... | output | 1 | 64,692 | 3 | 129,385 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,693 | 3 | 129,386 |
"Correct Solution:
```
N = int(input())
A = list(map(int, input().split()))
MOD = 10**9 + 7
class Combination:
def __init__(self, size, mod=10**9 + 7):
self.size = size + 2
self.mod = mod
self.fact = [1, 1] + [0] * size
self.factInv = [1, 1] + [0] * size
self.inv = [0, 1] + ... | output | 1 | 64,693 | 3 | 129,387 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,694 | 3 | 129,388 |
"Correct Solution:
```
N,*X=map(int,open(0).read().split())
a=s=1
for x in X:
a=a*s%(10**9+7)
if 2*~-s<x:s+=1
print(a)
``` | output | 1 | 64,694 | 3 | 129,389 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,695 | 3 | 129,390 |
"Correct Solution:
```
n,ans,j=input(),1,1
for i in input().split():
ans=ans*j%int(1e9+7)
j+=j*2<int(i)+2
print(ans)
``` | output | 1 | 64,695 | 3 | 129,391 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,696 | 3 | 129,392 |
"Correct Solution:
```
#!/usr/bin/python3.6
MOD = 10**9 + 7
n = int(input())
a = [int(item) for item in input().split()]
ans = 1
prev = 0
vacant = 0
robot = 0
for item in a:
vacant += item - prev - 1
robot += 1
if vacant <= robot - 2:
ans *= robot
ans %= MOD
robot -= 1
vacan... | output | 1 | 64,696 | 3 | 129,393 |
Provide a correct Python 3 solution for this coding contest problem.
You are developing frog-shaped robots, and decided to race them against each other.
First, you placed N robots onto a number line. These robots are numbered 1 through N. The current coordinate of robot i is x_i. Here, all x_i are integers, and 0 < x... | instruction | 0 | 64,697 | 3 | 129,394 |
"Correct Solution:
```
import sys
input = sys.stdin.readline
sys.setrecursionlimit(pow(10, 6))
MOD = pow(10, 9) + 7
def main():
n = int(input())
x = list(map(int, input().split()))
fac = [1]
for i in range(2, n+1):
fac.append(fac[-1]*i%MOD)
ans= 1
i = 1
for _x in x:
if _x <... | output | 1 | 64,697 | 3 | 129,395 |
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