message stringlengths 2 433k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 113 108k | cluster float64 12 12 | __index_level_0__ int64 226 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Dreamoon likes sequences very much. So he created a problem about the sequence that you can't find in OEIS:
You are given two integers d, m, find the number of arrays a, satisfying the following constraints:
* The length of a is n, n ≥ ... | instruction | 0 | 53,225 | 12 | 106,450 |
Tags: bitmasks, combinatorics, math
Correct Solution:
```
aas = []
for _ in range(int(input())):
d, m = map(int, input().split())
A = []
s = 1
sus = 0
while sus + s <= d:
A.append(s)
sus += s
s *= 2
A.append(d - sum(A))
ans = 1
for x in A:
ans *= (x+1)
... | output | 1 | 53,225 | 12 | 106,451 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Dreamoon likes sequences very much. So he created a problem about the sequence that you can't find in OEIS:
You are given two integers d, m, find the number of arrays a, satisfying the following constraints:
* The length of a is n, n ≥ ... | instruction | 0 | 53,226 | 12 | 106,452 |
Tags: bitmasks, combinatorics, math
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_arr():
return map(int,raw_input().split())
def pr_num(n):
stdout.write(str... | output | 1 | 53,226 | 12 | 106,453 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,235 | 12 | 106,470 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
from bisect import *
from collections import *
from math import gcd,ceil,sqrt,floor,inf
from heapq import *
from itertools import *
#from operator import add,mul,sub,xor,truediv,floordiv
from functools import *
#----------------------------------------... | output | 1 | 53,235 | 12 | 106,471 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,236 | 12 | 106,472 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
from bisect import bisect_left as bl
from bisect import bisect_right as br
from heapq import heappush,heappop
import math
from collections import *
from functools import reduce,cmp_to_key,lru_cache
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).s... | output | 1 | 53,236 | 12 | 106,473 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,237 | 12 | 106,474 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import sys,bisect,string,math,time,functools,random,fractions
from heapq import heappush,heappop,heapify
from collections import deque,defaultdict,Counter
from itertools import permutations,combinations,groupby
def Golf():*a,=map(int,open(0))
def I():ret... | output | 1 | 53,237 | 12 | 106,475 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,238 | 12 | 106,476 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
def check_gk(A, k):
N = len(A)
for i in range(N-1):
if A[i] >= k and A[i+1] >= k:
return True
for i in range(N-2):
if A[i] >= k and A[i+2] >= k:
return True
return False
def answer(b):
if... | output | 1 | 53,238 | 12 | 106,477 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,239 | 12 | 106,478 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
t = int(input())
out = []
for tt in range(t):
n, k = map(int, input().split())
if n == 1:
out.append("yes" if int(input()) == k else "no")
continue
a = []
hasa = False
for i in input().split():
x = int(i... | output | 1 | 53,239 | 12 | 106,479 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,240 | 12 | 106,480 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
from sys import stdin, stdout
import sys
from math import *
input = stdin.readline
for __ in range(int(input())):
n,k=map(int,input().split())
ar=list(map(int,input().split()))
if(k not in ar):
print("No")
elif(n==1):
print("Yes")
else:
ans=... | output | 1 | 53,240 | 12 | 106,481 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,241 | 12 | 106,482 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
from sys import stdin
input=stdin.buffer.readline
T=int(input())
for _ in range(T):
n,k = map(int,input().split())
ls = list(map(int,input().split()))
if n==1: print("yes" if ls[0]==k else "no"); continue
c1,c2=0,0
for i,u in enumerate(l... | output | 1 | 53,241 | 12 | 106,483 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Slime has a sequence of positive integers a_1, a_2, …, a_n.
In one operation Orac can choose an arbitrary subsegment [l … r] of this sequence and replace all values a_l, a_{l + 1}, …, a_r to the value of median of \\{a_l, a_{l + 1}, …, a_r\... | instruction | 0 | 53,242 | 12 | 106,484 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
printn = lambda x: print(x,end='')
import sys
input = sys.stdin.readline
inn = lambda : int(input())
inl = lambda: list(map(int, input().split()))
inm = lambda: map(int, input().split())
ins = lambda : input().strip()
DBG = True # and False
BIG ... | output | 1 | 53,242 | 12 | 106,485 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,271 | 12 | 106,542 |
Tags: greedy, sortings
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
ar=list(map(int,input().split()))
br=list(map(int,input().split()))
li=[]
for i in range(n):
if(br[i]==0):
li.append(ar[i])
li.sort(reverse=True)
j=0
for i in range(n):
i... | output | 1 | 53,271 | 12 | 106,543 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,272 | 12 | 106,544 |
Tags: greedy, sortings
Correct Solution:
```
for t in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
lock = list(map(int, input().split()))
b = []
for i in range(n):
if lock[i] == 0:
b.append(a[i])
b.sort()
b=b[::-1]
ind = 0
for i in ran... | output | 1 | 53,272 | 12 | 106,545 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,273 | 12 | 106,546 |
Tags: greedy, sortings
Correct Solution:
```
# 1
import itertools
import math
import sys
from collections import defaultdict
def stdinWrapper():
data = '''5
3
1 3 2
0 0 0
4
2 -3 4 -1
1 1 1 1
7
-8 4 -2 -6 4 7 1
1 0 0 0 1 1 0
5
0 1 -4 6 3
0 0 0 1 1
6
-1 7 10 4 -8 -1
1 0 0 0 0 1
'''
for line in da... | output | 1 | 53,273 | 12 | 106,547 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,274 | 12 | 106,548 |
Tags: greedy, sortings
Correct Solution:
```
import sys, math
import io, os
#data = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
from bisect import bisect_left as bl, bisect_right as br, insort
from heapq import heapify, heappush, heappop
from collections import defaultdict as dd, deque, Counter
# from itertools... | output | 1 | 53,274 | 12 | 106,549 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,275 | 12 | 106,550 |
Tags: greedy, sortings
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
l1=list(map(int,input().split()))
l2=list(map(int,input().split()))
unlock=[]
for i in range(len(l1)):
if(l2[i]==0):
unlock.append(l1[i])
l1[i]="a"
unlock.sort()
for i in range(n):
if(l1[i]=="a"):
l1[i]=unlock[... | output | 1 | 53,275 | 12 | 106,551 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,276 | 12 | 106,552 |
Tags: greedy, sortings
Correct Solution:
```
#------------------------------warmup----------------------------
# *******************************
# * AUTHOR: RAJDEEP GHOSH *
# * NICK : Rajdeep2k *
# * INSTITUTION: IIEST, SHIBPUR *
# *******************************
import os
import sys
from io impo... | output | 1 | 53,276 | 12 | 106,553 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,277 | 12 | 106,554 |
Tags: greedy, sortings
Correct Solution:
```
y=lambda:[*map(int,input().split())]
r=range
for _ in r(int(input())):
n=int(input());a=y();l=y();b=[]
for i in r(n):
if l[i]<1:b+=[a[i]]
b.sort()
for i in r(n):
if l[i]<1:a[i]=b.pop()
print(' '.join(map(str,a)))
``` | output | 1 | 53,277 | 12 | 106,555 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in any order and place them back into the unlocked ... | instruction | 0 | 53,278 | 12 | 106,556 |
Tags: greedy, sortings
Correct Solution:
```
I=input
for _ in[0]*int(I()):
I();*a,=map(int,I().split());b=I()[::2];c=sorted(x
for x,y in zip(a,b)if'1'>y);i=k=l=s=0;j=-1
for x in b:
if'1'>x:a[i]=c[j];j-=1
i+=1
for x in a:l+=1;s+=x;k=(k,l)[l<0]
print(*a)
``` | output | 1 | 53,278 | 12 | 106,557 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,279 | 12 | 106,558 |
Yes | output | 1 | 53,279 | 12 | 106,559 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,280 | 12 | 106,560 |
Yes | output | 1 | 53,280 | 12 | 106,561 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,281 | 12 | 106,562 |
Yes | output | 1 | 53,281 | 12 | 106,563 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,282 | 12 | 106,564 |
Yes | output | 1 | 53,282 | 12 | 106,565 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,283 | 12 | 106,566 |
No | output | 1 | 53,283 | 12 | 106,567 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,284 | 12 | 106,568 |
No | output | 1 | 53,284 | 12 | 106,569 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,285 | 12 | 106,570 |
No | output | 1 | 53,285 | 12 | 106,571 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a, consisting of n integers.
Each position i (1 ≤ i ≤ n) of the array is either locked or unlocked. You can take the values on the unlocked positions, rearrange them in a... | instruction | 0 | 53,286 | 12 | 106,572 |
No | output | 1 | 53,286 | 12 | 106,573 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,287 | 12 | 106,574 |
Tags: math
Correct Solution:
```
for i in range(int(input())):
m = int(input().split()[1])
s = sum(map(int, input().split()))
print('NO' if s!=m else 'YES')
``` | output | 1 | 53,287 | 12 | 106,575 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,288 | 12 | 106,576 |
Tags: math
Correct Solution:
```
# import sys
# sys.stdin = open('input.txt','r')
# sys.stdout = open('output.txt','w')
t = int(input())
while t:
n,m = map(int,input().split())
arr = list(map(int,input().split()))
s = sum(arr)
if s == m:
print('YES')
else:
print('NO')
t-=1
``` | output | 1 | 53,288 | 12 | 106,577 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,289 | 12 | 106,578 |
Tags: math
Correct Solution:
```
t=int(input())
for i in range(t):
n,m=map(int,input().split())
arr=list(map(int,input().split()))
if sum(arr)==m:
print("YES")
else:
print("NO")
``` | output | 1 | 53,289 | 12 | 106,579 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,290 | 12 | 106,580 |
Tags: math
Correct Solution:
```
t = int(input())
for _ in range(t):
n,m = [int(i) for i in input().split(" ")]
a = [int(i) for i in input().split(" ")]
print("YES" if sum(a) == m else "NO")
``` | output | 1 | 53,290 | 12 | 106,581 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,291 | 12 | 106,582 |
Tags: math
Correct Solution:
```
for _ in range(int(input())):
n,m=map(int,input().split())
arr=list(map(int,input().split()))
sum1=0
for i in range(1,n+1):
for j in range(i,n+1):
sum1+=arr[j-1]/j
if(round(sum1)==m):
print("YES")
else:
print("NO")... | output | 1 | 53,291 | 12 | 106,583 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,292 | 12 | 106,584 |
Tags: math
Correct Solution:
```
for _ in range(int(input())):
n, m = input().split()
m = int(m)
a = list(map(int, input().split()))
if sum(a) == m:
print("YES")
else:
print("NO")
``` | output | 1 | 53,292 | 12 | 106,585 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,293 | 12 | 106,586 |
Tags: math
Correct Solution:
```
cases = int(input())
for case in range(cases):
_, m = input().split()
print('YES' if sum(map(int, input().split())) == int(m) else 'NO')
``` | output | 1 | 53,293 | 12 | 106,587 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It is forbidden to delete elements as well as inser... | instruction | 0 | 53,294 | 12 | 106,588 |
Tags: math
Correct Solution:
```
for i in range(int(input())):
n,k=list(map(int,input().split()))
if sum(list(map(int,input().split())))==k:
print("YES")
else:
print("NO")
``` | output | 1 | 53,294 | 12 | 106,589 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,295 | 12 | 106,590 |
Yes | output | 1 | 53,295 | 12 | 106,591 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,296 | 12 | 106,592 |
Yes | output | 1 | 53,296 | 12 | 106,593 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,297 | 12 | 106,594 |
Yes | output | 1 | 53,297 | 12 | 106,595 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,298 | 12 | 106,596 |
Yes | output | 1 | 53,298 | 12 | 106,597 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,299 | 12 | 106,598 |
No | output | 1 | 53,299 | 12 | 106,599 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,300 | 12 | 106,600 |
No | output | 1 | 53,300 | 12 | 106,601 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,301 | 12 | 106,602 |
No | output | 1 | 53,301 | 12 | 106,603 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a given array a consisting of n integers and a given integer m find if it is possible to reorder elements of the array a in such a way that ∑_{i=1}^{n}{∑_{j=i}^{n}{(a_j)/(j)}} equals m? It i... | instruction | 0 | 53,302 | 12 | 106,604 |
No | output | 1 | 53,302 | 12 | 106,605 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,303 | 12 | 106,606 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
from collections import defaultdict;mod = 10 ** 9 + 7
for _ in range(int(input())):
n = int(input());B = list(map(int, input().split()));dp = defaultdict(int);cur, ans = 0, 0
for i, b in enumerate(B):v = 1 if not i else (ans - dp[cur]) % m... | output | 1 | 53,303 | 12 | 106,607 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,304 | 12 | 106,608 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
import sys
input = sys.stdin.readline
from collections import defaultdict
for _ in range(int(input())):
n = int(input())
A = list(map(int, input().split()))
mod = 10 ** 9 + 7
dp = defaultdict(int)
dp[0] = 1
ans = 1
cur... | output | 1 | 53,304 | 12 | 106,609 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,305 | 12 | 106,610 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
p=lambda:list(map(int,input().split()))
for t in range(p()[0]):
N=p()[0]
B=p()
C=[0]*(N+1)
for i in range(N):C[i+1]=C[i]+B[i]
S=1
D=dict()
D[0]=1
for i in range(1,N):D[C[i]],S=S,(2*S-D.get(C[i],0))%(10**9+7)
print(S)
``` | output | 1 | 53,305 | 12 | 106,611 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,306 | 12 | 106,612 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
T = int(input())
for t in range(T):
n = int(input())
bb = [int(x) for x in input().split()]
sums_bef_offset = {bb[0]: 1}
offset = 0
all_sums = 1
base = 1000000007
result = 0
for i in range(1, n):
b = bb... | output | 1 | 53,306 | 12 | 106,613 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,307 | 12 | 106,614 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
import sys
import math
def II():
return int(sys.stdin.readline())
def LI():
return list(map(int, sys.stdin.readline().split()))
def MI():
return map(int, sys.stdin.readline().split())
def SI():
return sys.stdin.readline().strip()
def F... | output | 1 | 53,307 | 12 | 106,615 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,308 | 12 | 106,616 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
p=lambda:list(map(int,input().split()))
for t in range(p()[0]):
N=p()[0];B=p();C=[0]*(N+1)
for i in range(N):C[i+1]=C[i]+B[i]
S=1;D=dict();D[0]=1
for i in range(1,N):D[C[i]],S=S,(2*S-D.get(C[i],0))%(10**9+7)
print(S)
``` | output | 1 | 53,308 | 12 | 106,617 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,309 | 12 | 106,618 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
import collections
import string
import math
import copy
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.buff... | output | 1 | 53,309 | 12 | 106,619 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
* b_i = ∑_{j=1}^{i} a_j.
Find the number of ... | instruction | 0 | 53,310 | 12 | 106,620 |
Tags: combinatorics, data structures, dp, sortings
Correct Solution:
```
import sys
#input=sys.stdin.buffer.readline
mod=10**9+7
for t in range(int(input())):
N=int(input())
B=list(map(int,input().split()))
C=[0]*(N+1)
for i in range(N):
C[i+1]=C[i]+B[i]
'''
DP=[0]*(N+1)
DP[0]=1
for i in range(N):
... | output | 1 | 53,310 | 12 | 106,621 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.