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.
You are given an array a of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k of the first elements of the array.
* decreme... | instruction | 0 | 21,411 | 12 | 42,822 |
Tags: constructive algorithms, dp, greedy
Correct Solution:
```
for _ in range(int(input())):
n = int(input())
a = [*map(int,input().split())]
ans = sum(max(a[i]-a[i+1],0) for i in range(n-1))
print("YES" if ans<=a[0] else "NO")
``` | output | 1 | 21,411 | 12 | 42,823 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k of the first elements of the array.
* decreme... | instruction | 0 | 21,412 | 12 | 42,824 |
Tags: constructive algorithms, dp, greedy
Correct Solution:
```
#not done by myself
t=int(input())
fflg=0
if t==3000: fflg=1
cnt=1
while t!=0:
t-=1
n=int(input())
lst=input().split(" ")
# if fflg==1 and cnt==59: print(lst)
for i in range(0,n,1):
lst[i]=int(lst[i])
flg=0
mini=1000... | output | 1 | 21,412 | 12 | 42,825 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,413 | 12 | 42,826 |
Yes | output | 1 | 21,413 | 12 | 42,827 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,414 | 12 | 42,828 |
Yes | output | 1 | 21,414 | 12 | 42,829 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,415 | 12 | 42,830 |
Yes | output | 1 | 21,415 | 12 | 42,831 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,416 | 12 | 42,832 |
Yes | output | 1 | 21,416 | 12 | 42,833 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,417 | 12 | 42,834 |
No | output | 1 | 21,417 | 12 | 42,835 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,418 | 12 | 42,836 |
No | output | 1 | 21,418 | 12 | 42,837 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,419 | 12 | 42,838 |
No | output | 1 | 21,419 | 12 | 42,839 |
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 of n positive integers.
You can use the following operation as many times as you like: select any integer 1 ≤ k ≤ n and do one of two things:
* decrement by one k o... | instruction | 0 | 21,420 | 12 | 42,840 |
No | output | 1 | 21,420 | 12 | 42,841 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given n sets of integers. The i-th set contains k_i integers.
Two sets are called similar if they share at least two common elements, i. e. there exist two integers x and y such that x ≠ y, and they both belong to each of the two se... | instruction | 0 | 21,421 | 12 | 42,842 |
Tags: data structures, graphs, implementation
Correct Solution:
```
def solve(n, debug=False):
global curr; global seen; global last; big = []; small = []
for i in range(1,1+n):
l = list(map(int, input().split()))
if l[0] > 600: big.append((i,l[1:]))
else: ... | output | 1 | 21,421 | 12 | 42,843 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given n sets of integers. The i-th set contains k_i integers.
Two sets are called similar if they share at least two common elements, i. e. there exist two integers x and y such that x ≠ y, and they both belong to each of the two se... | instruction | 0 | 21,422 | 12 | 42,844 |
Tags: data structures, graphs, implementation
Correct Solution:
```
def solve(n, debug=False):
global curr; global seen; global last; big = []; small = []
for i in range(1,1+n):
l = list(map(int, input().split()))
if l[0] > 600: big.append((i,l[1:]))
else: ... | output | 1 | 21,422 | 12 | 42,845 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n sets of integers. The i-th set contains k_i integers.
Two sets are called similar if they share at least two common elements, i. e. there exist two integers x and y such that x ... | instruction | 0 | 21,423 | 12 | 42,846 |
No | output | 1 | 21,423 | 12 | 42,847 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n sets of integers. The i-th set contains k_i integers.
Two sets are called similar if they share at least two common elements, i. e. there exist two integers x and y such that x ... | instruction | 0 | 21,424 | 12 | 42,848 |
No | output | 1 | 21,424 | 12 | 42,849 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n sets of integers. The i-th set contains k_i integers.
Two sets are called similar if they share at least two common elements, i. e. there exist two integers x and y such that x ... | instruction | 0 | 21,425 | 12 | 42,850 |
No | output | 1 | 21,425 | 12 | 42,851 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n sets of integers. The i-th set contains k_i integers.
Two sets are called similar if they share at least two common elements, i. e. there exist two integers x and y such that x ... | instruction | 0 | 21,426 | 12 | 42,852 |
No | output | 1 | 21,426 | 12 | 42,853 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,443 | 12 | 42,886 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
import os
import sys
import time
from io import BytesIO, IOBase
def main():
limit = 10 ** 5 + 1
R = [[] for _ in range(limit)]
n, q = li_input()
a = li_input()
simples = {1: n}
for i in range(... | output | 1 | 21,443 | 12 | 42,887 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,444 | 12 | 42,888 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
_print = print
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
... | output | 1 | 21,444 | 12 | 42,889 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,445 | 12 | 42,890 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
mod = 1000000007
eps = 10**-9
def main():
import sys
from math import gcd
input = sys.stdin.buffer.readline
V = 10**5
minfactor = list(range(V+1))
for d in range(2, V+1):
for x in range... | output | 1 | 21,445 | 12 | 42,891 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,446 | 12 | 42,892 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
_print = print
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
... | output | 1 | 21,446 | 12 | 42,893 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,447 | 12 | 42,894 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
# by the authority of GOD author: manhar singh sachdev #
def some_random_function():
"""due to the fast IO template, my code gets caught in
plag check for no reason. That is why, I am making
random... | output | 1 | 21,447 | 12 | 42,895 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,448 | 12 | 42,896 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
'''
from bisect import bisect,bisect_left
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 functoo... | output | 1 | 21,448 | 12 | 42,897 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,449 | 12 | 42,898 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
import sys
input_ = lambda: sys.stdin.readline().strip("\r\n")
ii = lambda : int(input_())
il = lambda : list(map(int, input_().split()))
ilf = lambda : list(map(float, input_().split()))
ip = lambda : input_()
fi = lamb... | output | 1 | 21,449 | 12 | 42,899 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts the subsegment a_l, a_{l + 1}, …, a_r out, remo... | instruction | 0 | 21,450 | 12 | 42,900 |
Tags: binary search, data structures, dp, graphs, number theory, two pointers
Correct Solution:
```
import sys
import bisect
input_=lambda: sys.stdin.readline().strip("\r\n")
from math import log
from math import gcd
from random import randint
sa=lambda :input_()
sb=lambda:int(input_())
sc=lambda:input_().split()
sd=la... | output | 1 | 21,450 | 12 | 42,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,451 | 12 | 42,902 |
Yes | output | 1 | 21,451 | 12 | 42,903 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,452 | 12 | 42,904 |
Yes | output | 1 | 21,452 | 12 | 42,905 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,453 | 12 | 42,906 |
Yes | output | 1 | 21,453 | 12 | 42,907 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,454 | 12 | 42,908 |
Yes | output | 1 | 21,454 | 12 | 42,909 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,455 | 12 | 42,910 |
No | output | 1 | 21,455 | 12 | 42,911 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,456 | 12 | 42,912 |
No | output | 1 | 21,456 | 12 | 42,913 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,457 | 12 | 42,914 |
No | output | 1 | 21,457 | 12 | 42,915 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This time Baby Ehab will only cut and not stick. He starts with a piece of paper with an array a of length n written on it, and then he does the following:
* he picks a range (l, r) and cuts ... | instruction | 0 | 21,458 | 12 | 42,916 |
No | output | 1 | 21,458 | 12 | 42,917 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following... | instruction | 0 | 21,489 | 12 | 42,978 |
Tags: dp, number theory
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
dp = [1] * (n + 5)
tmax = [0 for _ in range(100005)]
p = [[] for _ in range(100005)]
p[1] = [1]
for i in range(2, 100001):
if (not p[i]):
for j in range(i, 100001, i):
p[j].append(i)
for i in range... | output | 1 | 21,489 | 12 | 42,979 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following... | instruction | 0 | 21,490 | 12 | 42,980 |
Tags: dp, number theory
Correct Solution:
```
import bisect
import collections
import copy
import functools
import heapq
import itertools
import math
import random
import re
import string
import sys
import time
from typing import Counter, List
sys.setrecursionlimit(99999)
input()
mx = 10**5 + 5
f = [0] * mx
f[1] = 1
... | output | 1 | 21,490 | 12 | 42,981 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following... | instruction | 0 | 21,492 | 12 | 42,984 |
Tags: dp, number theory
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
dp = [1] * (n + 5)
tmax = [0 for _ in range(100005)]
p = [[] for _ in range(100005)]
p[1] = [1]
for i in range(2, 100001):
if p[i]==[]:
for j in range(i, 100001, i):
p[j].append(i)
for i in range(... | output | 1 | 21,492 | 12 | 42,985 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following... | instruction | 0 | 21,493 | 12 | 42,986 |
Tags: dp, number theory
Correct Solution:
```
"""
#If FastIO not needed, used this and don't forget to strip
#import sys, math
#input = sys.stdin.readline
"""
import os
import sys
from io import BytesIO, IOBase
import heapq as h
from bisect import bisect_left, bisect_right
from types import GeneratorType
BUFSIZE = 8... | output | 1 | 21,493 | 12 | 42,987 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following... | instruction | 0 | 21,495 | 12 | 42,990 |
Tags: dp, number theory
Correct Solution:
```
n = 111111
p = [0] * n
t = {}
t[1] = [1]
for i in range(2, n):
if t.get(i,0) == 0:
t[i] = [i]
for j in range(2 * i, n, i):
if j not in t:
t[j] = []
t[j].append(i)
input()
a = list(map(int, input().split()))
for i in a:
x =... | output | 1 | 21,495 | 12 | 42,991 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following... | instruction | 0 | 21,496 | 12 | 42,992 |
Tags: dp, number theory
Correct Solution:
```
lis=[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281... | output | 1 | 21,496 | 12 | 42,993 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,497 | 12 | 42,994 |
Yes | output | 1 | 21,497 | 12 | 42,995 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,498 | 12 | 42,996 |
Yes | output | 1 | 21,498 | 12 | 42,997 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,499 | 12 | 42,998 |
Yes | output | 1 | 21,499 | 12 | 42,999 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,500 | 12 | 43,000 |
Yes | output | 1 | 21,500 | 12 | 43,001 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,501 | 12 | 43,002 |
No | output | 1 | 21,501 | 12 | 43,003 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,502 | 12 | 43,004 |
No | output | 1 | 21,502 | 12 | 43,005 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,503 | 12 | 43,006 |
No | output | 1 | 21,503 | 12 | 43,007 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., ... | instruction | 0 | 21,504 | 12 | 43,008 |
No | output | 1 | 21,504 | 12 | 43,009 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is guaranteed that the answer is not greater than 8·1018.
Input
First line contain two integer values n and k (1 ≤ n ≤ 105,... | instruction | 0 | 21,618 | 12 | 43,236 |
Tags: data structures, dp
Correct Solution:
```
from bisect import insort,bisect_right,bisect_left
from sys import stdout, stdin, setrecursionlimit
from math import sqrt,ceil,floor,factorial,gcd,log2,log10
from io import BytesIO, IOBase
from collections import *
from itertools import *
from random import *
from string... | output | 1 | 21,618 | 12 | 43,237 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is guaranteed that the answer is not greater than 8·1018.
Input
First line contain two integer values n and k (1 ≤ n ≤ 105,... | instruction | 0 | 21,619 | 12 | 43,238 |
Tags: data structures, dp
Correct Solution:
```
import sys
def update(BIT, i, value):
while i <= len(BIT) - 1:
BIT[i] += value
i += i & -i
def query(BIT, start, end):
if start > 0:
return query(BIT, 0, end) - query(BIT, 0, start - 1)
res = 0
while end > 0:
res += BIT[... | output | 1 | 21,619 | 12 | 43,239 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is guaranteed that the answer is not greater than 8·1018.
Input
First line contain two integer values n and k (1 ≤ n ≤ 105,... | instruction | 0 | 21,620 | 12 | 43,240 |
Tags: data structures, dp
Correct Solution:
```
import os
from io import BytesIO
input = BytesIO(os.read(0, os.fstat(0).st_size)).readline
def getSum( BITree, index):
sum = 0
while (index > 0):
sum += BITree[index]
index -= index & (-index)
return sum
def updateBIT(BITree, n, index, val):
while (index <... | output | 1 | 21,620 | 12 | 43,241 |
Provide tags and a correct Python 3 solution for this coding contest problem.
For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is guaranteed that the answer is not greater than 8·1018.
Input
First line contain two integer values n and k (1 ≤ n ≤ 105,... | instruction | 0 | 21,621 | 12 | 43,242 |
Tags: data structures, dp
Correct Solution:
```
from sys import stdin
def main():
n, k = map(int, input().split())
dp = [[0] * (n + 1) for _ in range(k + 1)]
col0, dp1 = dp[0], dp[1:]
for x in map(int, stdin.read().splitlines()):
x1 = x
while x1 <= n:
col0[x1] += 1
... | output | 1 | 21,621 | 12 | 43,243 |
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