message stringlengths 2 48.6k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 318 108k | cluster float64 8 8 | __index_level_0__ int64 636 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple cycle — a bridge connects islands 1 and 2, islands 2 and 3, and so on, a... | instruction | 0 | 74,603 | 8 | 149,206 |
No | output | 1 | 74,603 | 8 | 149,207 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,786 | 8 | 149,572 |
"Correct Solution:
```
from collections import defaultdict,deque
import sys,heapq,bisect,math,itertools,string,queue,copy,time
sys.setrecursionlimit(10**8)
INF = float('inf')
mod = 10**9+7
eps = 10**-7
def inp(): return int(sys.stdin.readline())
def inpl(): return list(map(int, sys.stdin.readline().split()))
def inpl_... | output | 1 | 74,786 | 8 | 149,573 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,787 | 8 | 149,574 |
"Correct Solution:
```
ii = lambda : int(input())
mi = lambda : map(int,input().split())
li = lambda : list(map(int,input().split()))
n,m = mi()
tree = [[] for _ in range(n)]
for i in range(m):
s,t = mi()
tree[s-1].append(t-1)
dp = [0]*n
for i in reversed(range(n-1)):
size = len(tree[i])
for k in tree[... | output | 1 | 74,787 | 8 | 149,575 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,788 | 8 | 149,576 |
"Correct Solution:
```
import sys
input = sys.stdin.readline
N,M=map(int,input().split())
R=[tuple(map(int,input().split())) for i in range(M)]
E=[set() for i in range(N)]
for x,y in R:
E[x-1].add(y-1)
DP=[M]*N
DP[N-1]=0
for i in range(N-2,-1,-1):
score=0
for x in E[i]:
score+=1+DP[x]
DP[i... | output | 1 | 74,788 | 8 | 149,577 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,789 | 8 | 149,578 |
"Correct Solution:
```
ii = lambda : int(input())
mi = lambda : map(int,input().split())
li = lambda : list(map(int,input().split()))
def main():
n,m = mi()
tree = [[] for _ in range(n)]
for i in range(m):
s,t = mi()
tree[s-1].append(t-1)
dp = [0]*n
dpl = [0]*n
for i in range(n-... | output | 1 | 74,789 | 8 | 149,579 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,790 | 8 | 149,580 |
"Correct Solution:
```
n, m = map(int, input().split())
edges = [[] for _ in range(n)]
for _ in range(m):
s, t = map(int, input().split())
edges[n - s].append(n - t)
dp = [0.0] * n
for i in range(1, n):
dp[i] = sum(dp[s] + 1.0 for s in edges[i]) / len(edges[i])
ret = dp[-1]
for j in range(n - 1, 0, -1):
... | output | 1 | 74,790 | 8 | 149,581 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,791 | 8 | 149,582 |
"Correct Solution:
```
import sys
n, m = map(int, input().split())
links = [set() for _ in range(n)]
counts = [0] * n
for line in sys.stdin:
s, t = map(int, line.split())
s -= 1
t -= 1
links[s].add(t)
counts[s] += 1
# Expected number of edges passing from i to N
expected = [0.] * n
exp_get = expec... | output | 1 | 74,791 | 8 | 149,583 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,792 | 8 | 149,584 |
"Correct Solution:
```
N, M = list(map(int, input().split()))
st = [list(map(int, input().split())) for _ in range(M)]
R = {}
for s, t in st:
s -= 1
t -= 1
if s in R:
R[s].append(t)
else:
R[s] = [t]
DP = [0] * N
ans = N
D = [0] * N
for i in range(N - 2, -1, -1):
ma = 0
su = 0
le = len(R[i])
fo... | output | 1 | 74,792 | 8 | 149,585 |
Provide a correct Python 3 solution for this coding contest problem.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i and Room t_i (s_i < t_i) and can only be traversed in t... | instruction | 0 | 74,793 | 8 | 149,586 |
"Correct Solution:
```
#!usr/bin/env python3
from collections import defaultdict,deque
from heapq import heappush, heappop
import sys
import math
import bisect
import random
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def I(): return int(sys.stdin.readline())
def LS():return [list(x) for x in sys.st... | output | 1 | 74,793 | 8 | 149,587 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,794 | 8 | 149,588 |
Yes | output | 1 | 74,794 | 8 | 149,589 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,795 | 8 | 149,590 |
Yes | output | 1 | 74,795 | 8 | 149,591 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,796 | 8 | 149,592 |
Yes | output | 1 | 74,796 | 8 | 149,593 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,797 | 8 | 149,594 |
Yes | output | 1 | 74,797 | 8 | 149,595 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,798 | 8 | 149,596 |
No | output | 1 | 74,798 | 8 | 149,597 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,799 | 8 | 149,598 |
No | output | 1 | 74,799 | 8 | 149,599 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,800 | 8 | 149,600 |
No | output | 1 | 74,800 | 8 | 149,601 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a cave consisting of N rooms and M one-directional passages. The rooms are numbered 1 through N.
Takahashi is now in Room 1, and Room N has the exit. The i-th passage connects Room s_i... | instruction | 0 | 74,801 | 8 | 149,602 |
No | output | 1 | 74,801 | 8 | 149,603 |
Provide a correct Python 3 solution for this coding contest problem.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are connected through some number of cables.
Each device v (1... | instruction | 0 | 74,818 | 8 | 149,636 |
"Correct Solution:
```
import sys
sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def MI1(): return map(int1, sys.stdin.readline().split())
def LI(): return list(map(int, sy... | output | 1 | 74,818 | 8 | 149,637 |
Provide a correct Python 3 solution for this coding contest problem.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are connected through some number of cables.
Each device v (1... | instruction | 0 | 74,819 | 8 | 149,638 |
"Correct Solution:
```
from collections import deque
N=int(input())
A=list(map(int,input().split()))
edge=[[] for i in range(N)]
for _ in range(N-1):
u,v=map(int,input().split())
edge[u-1].append(v-1)
edge[v-1].append(u-1)
ans=[0]
parent=[-1]*N
que=deque([(0,-1)])
while que:
v,pv=que.popleft()
for... | output | 1 | 74,819 | 8 | 149,639 |
Provide a correct Python 3 solution for this coding contest problem.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are connected through some number of cables.
Each device v (1... | instruction | 0 | 74,820 | 8 | 149,640 |
"Correct Solution:
```
import sys
sys.setrecursionlimit(10**9)
INF = 10**15
N = int(input())
As = list(map(int, input().split()))
adjL = [[] for _ in range(N)]
for _ in range(N-1):
U, V = map(int, input().split())
U, V = U-1, V-1
adjL[U].append(V)
adjL[V].append(U)
useds = [False] * N
sizes = [0] * N... | output | 1 | 74,820 | 8 | 149,641 |
Provide a correct Python 3 solution for this coding contest problem.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are connected through some number of cables.
Each device v (1... | instruction | 0 | 74,821 | 8 | 149,642 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
inf = 10**18+3
def merge(d1a, d2a, d1b, d2b):
la = len(d1a)
lb = len(d1b)
k = la+lb
res1 = [inf]*k
res2 = [inf]*k
for i in range(la):
for j in range(lb):
res1[i+j] = min(res1[i+j], d1a[i]+d1b[j], d1a[i]+d2b[j], ... | output | 1 | 74,821 | 8 | 149,643 |
Provide a correct Python 3 solution for this coding contest problem.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are connected through some number of cables.
Each device v (1... | instruction | 0 | 74,822 | 8 | 149,644 |
"Correct Solution:
```
import sys
sys.setrecursionlimit(5005)
SENTINEL = 10 ** 13
n = int(input())
aaa = list(map(int, input().split()))
links = [set() for _ in [0] * n]
for line in sys.stdin.readlines():
u, v = map(int, line.split())
u -= 1
v -= 1
links[u].add(v)
links[v].add(u)
def dfs(v, p):
... | output | 1 | 74,822 | 8 | 149,645 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are co... | instruction | 0 | 74,823 | 8 | 149,646 |
No | output | 1 | 74,823 | 8 | 149,647 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are co... | instruction | 0 | 74,824 | 8 | 149,648 |
No | output | 1 | 74,824 | 8 | 149,649 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are co... | instruction | 0 | 74,825 | 8 | 149,650 |
No | output | 1 | 74,825 | 8 | 149,651 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The server in company A has a structure where N devices numbered 1, 2, ..., N are connected with N - 1 cables. The i-th cable connects Device U_i and Device V_i. Any two different devices are co... | instruction | 0 | 74,826 | 8 | 149,652 |
No | output | 1 | 74,826 | 8 | 149,653 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,031 | 8 | 150,062 |
Tags: implementation, sortings
Correct Solution:
```
def db(*arg):
print(*arg)
from collections import Counter, defaultdict
H,W = map(int,input().split())
grid = [list(map(int, input().split())) for i in range(H)]
rank_in_row = [[0] * W for _ in range(H)]
rank_in_columns = [[0] * W for _ in range(H)]
row_maxrank = ... | output | 1 | 75,031 | 8 | 150,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,032 | 8 | 150,064 |
Tags: implementation, sortings
Correct Solution:
```
import sys
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
def main():
n, m = map(int, input().split())
A = [list(map(int, input().split())) for i in range(n)]
H = [[] for i in range(n)]
V = [[] for i in range(m)]
for i... | output | 1 | 75,032 | 8 | 150,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,033 | 8 | 150,066 |
Tags: implementation, sortings
Correct Solution:
```
from math import *
import math
n, m = map(int ,input().split())
g = []
for i in range(n):
g.append([int(i) for i in input().split()])
g2 = [[0] * m for i in range(n)]
for i in range(n):
a = g[i][:]
d = {}
for x in a:
d[x] = []
for j... | output | 1 | 75,033 | 8 | 150,067 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,034 | 8 | 150,068 |
Tags: implementation, sortings
Correct Solution:
```
def main():
n, m = (int(x) for x in input().split(" "))
a = []
for _ in range(n):
a.append([int(x) for x in input().strip().split(" ")])
answer = []
for _ in range(n):
answer.append([None for x in range(m)])
rows = []
for i in range(n):
ro... | output | 1 | 75,034 | 8 | 150,069 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,035 | 8 | 150,070 |
Tags: implementation, sortings
Correct Solution:
```
n,m=map(int, input().split())
a = []
dl= []
for i in range(n):
a.append(list(map(int, input().split())))
aso = sorted(a[-1])
c = 1
dl.append({})
for j in aso:
if j not in dl[-1]:
dl[-1][j] = c
c+=1
dr = []
for i in ... | output | 1 | 75,035 | 8 | 150,071 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,036 | 8 | 150,072 |
Tags: implementation, sortings
Correct Solution:
```
def inpl(): return list(map(int, input().split()))
n, m = inpl()
St = [inpl() for _ in range(n)]
ppr = [sorted(list(set(s))) for s in St]
PR = []
for i in range(n):
H = dict()
for j, v in enumerate(ppr[i], 1):
H[v] = j
PR.append([H[p] for p in St... | output | 1 | 75,036 | 8 | 150,073 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,037 | 8 | 150,074 |
Tags: implementation, sortings
Correct Solution:
```
from bisect import bisect_left as lb
n,m=map(int,input().split())
a=[list(map(int,input().split())) for _ in range(n)]
p=[sorted(list(set(a[i]))) for i in range(n)]
b=[list(a[i][j] for i in range(n)) for j in range(m)]
q=[sorted(list(set(b[i]))) for i in range(m)]
an... | output | 1 | 75,037 | 8 | 150,075 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Naturally, this city has nm intersections. At any i... | instruction | 0 | 75,038 | 8 | 150,076 |
Tags: implementation, sortings
Correct Solution:
```
import sys, os, io
def rs(): return sys.stdin.readline().rstrip()
def ri(): return int(sys.stdin.readline())
def ria(): return list(map(int, sys.stdin.readline().split()))
def ws(s): sys.stdout.write(s + '\n')
def wi(n): sys.stdout.write(str(n) + '\n')
def wia(a): sy... | output | 1 | 75,038 | 8 | 150,077 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,039 | 8 | 150,078 |
Yes | output | 1 | 75,039 | 8 | 150,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,040 | 8 | 150,080 |
Yes | output | 1 | 75,040 | 8 | 150,081 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,041 | 8 | 150,082 |
Yes | output | 1 | 75,041 | 8 | 150,083 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,042 | 8 | 150,084 |
Yes | output | 1 | 75,042 | 8 | 150,085 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,043 | 8 | 150,086 |
No | output | 1 | 75,043 | 8 | 150,087 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,044 | 8 | 150,088 |
No | output | 1 | 75,044 | 8 | 150,089 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,045 | 8 | 150,090 |
No | output | 1 | 75,045 | 8 | 150,091 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Dora loves adventures quite a lot. During some journey she encountered an amazing city, which is formed by n streets along the Eastern direction and m streets across the Southern direction. Natu... | instruction | 0 | 75,046 | 8 | 150,092 |
No | output | 1 | 75,046 | 8 | 150,093 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,062 | 8 | 150,124 |
Tags: greedy, math, sortings
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
A=[int(i) for i in input().split()]
A.sort(reverse=True)
if(len(A)>=2):
k=A[1]-1
if(k<=n-2):
print(k)
else:
print(n-2)
``` | output | 1 | 75,062 | 8 | 150,125 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,063 | 8 | 150,126 |
Tags: greedy, math, sortings
Correct Solution:
```
q = int(input())
for qq in range(q):
n = int(input())
dat = list(map(int, input().split()))
dat.sort()
a, b = dat[-2], dat[-1]
a ,b = a-1, b-1
dat = dat[:-2]
l = len(dat)
#print("{0} {1}".format(a,b))
#print(dat)
print(min(a,b,l)... | output | 1 | 75,063 | 8 | 150,127 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,064 | 8 | 150,128 |
Tags: greedy, math, sortings
Correct Solution:
```
t = int(input())
while t > 0:
n = int(input())
a = [int(i) for i in input().split()]
a.sort()
k = min(a[-1], a[-2]) - 1
if len(a) - 2 >= k:
print(k)
else:
print(len(a) - 2)
t -= 1
``` | output | 1 | 75,064 | 8 | 150,129 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,065 | 8 | 150,130 |
Tags: greedy, math, sortings
Correct Solution:
```
def solve():
n = int(input())
a = sorted(list(map(int, input().split())))
ans = min(a[-2] - 1, n - 2)
print(ans)
t = int(input())
for _ in range(t):
solve()
``` | output | 1 | 75,065 | 8 | 150,131 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,066 | 8 | 150,132 |
Tags: greedy, math, sortings
Correct Solution:
```
q = int(input())
for i in range(q):
n = int(input())
a = list(map(int, input().split()))
a.sort()
if n == 2:
print(0)
else:
print(min(a[-2] - 1, n - 2))
``` | output | 1 | 75,066 | 8 | 150,133 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,067 | 8 | 150,134 |
Tags: greedy, math, sortings
Correct Solution:
```
T = int(input())
for _ in range(T):
n = int(input())
a = list(map(int, input().split()))
a.sort(reverse = True)
if len(a) <= 1:
print(0)
else:
k = a[1]-1
print(min(n-2, k))
``` | output | 1 | 75,067 | 8 | 150,135 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,068 | 8 | 150,136 |
Tags: greedy, math, sortings
Correct Solution:
```
for TT in range(1, int(input()) + 1):
n = int(input())
l = sorted(map(int, input().split()))
k = max(0, min(n - 2, l[-2] - 1))
print(k)
``` | output | 1 | 75,068 | 8 | 150,137 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote a k-step ladder as the following structure: exactly k + 2 wooden planks, of which
* two planks of length at least k+1 — the base of the ladder;
* k planks of length at least 1 — the steps of the ladder;
Note that neith... | instruction | 0 | 75,069 | 8 | 150,138 |
Tags: greedy, math, sortings
Correct Solution:
```
q = int(input())
for n in range(q):
N = int(input())
e = input().split(" ")
for i in range(N):
e[i] = int(e[i])
e.sort()
napr2 = e[N - 1]
napr1 = e[N - 2]
if napr2 > 1:
print(min(N - 2, napr1 - 1))
else:
print(0)
... | output | 1 | 75,069 | 8 | 150,139 |
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