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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ksusha the Squirrel is standing at the beginning of a straight road, divided into n sectors. The sectors are numbered 1 to n, from left to right. Initially, Ksusha stands in sector 1. Ksusha w...
instruction
0
52,536
3
105,072
No
output
1
52,536
3
105,073
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ksusha the Squirrel is standing at the beginning of a straight road, divided into n sectors. The sectors are numbered 1 to n, from left to right. Initially, Ksusha stands in sector 1. Ksusha w...
instruction
0
52,537
3
105,074
No
output
1
52,537
3
105,075
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ksusha the Squirrel is standing at the beginning of a straight road, divided into n sectors. The sectors are numbered 1 to n, from left to right. Initially, Ksusha stands in sector 1. Ksusha w...
instruction
0
52,538
3
105,076
No
output
1
52,538
3
105,077
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ksusha the Squirrel is standing at the beginning of a straight road, divided into n sectors. The sectors are numbered 1 to n, from left to right. Initially, Ksusha stands in sector 1. Ksusha w...
instruction
0
52,539
3
105,078
No
output
1
52,539
3
105,079
Provide tags and a correct Python 3 solution for this coding contest problem. The commanding officers decided to drop a nuclear bomb on the enemy's forces. You are ordered to determine the power of the warhead that needs to be used. The enemy has N strategically important objects. Their positions are known due to the...
instruction
0
52,597
3
105,194
Tags: binary search, dp, probabilities Correct Solution: ``` import math n = int(input()) k, epsilon = list(map(int, input().split(" "))) x0, y0 = list(map(int, input().split(" "))) epsilon /= 1000.0 l = [] for i in range(n): l.append(list(map(int, input().split(" ")))) d = sorted([(p[0] - x0) ** 2 + (p[1] ...
output
1
52,597
3
105,195
Provide tags and a correct Python 3 solution for this coding contest problem. The commanding officers decided to drop a nuclear bomb on the enemy's forces. You are ordered to determine the power of the warhead that needs to be used. The enemy has N strategically important objects. Their positions are known due to the...
instruction
0
52,598
3
105,196
Tags: binary search, dp, probabilities Correct Solution: ``` #!/usr/bin/python3 from math import sqrt, exp n = int(input()) k, eps = tuple(map(int, input().split())) x0, y0 = tuple(map(int, input().split())) val = [] for _ in range(n): x, y = tuple(map(int, input().split())) val.append((x - x0)**2 + (y - y0)*...
output
1
52,598
3
105,197
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The commanding officers decided to drop a nuclear bomb on the enemy's forces. You are ordered to determine the power of the warhead that needs to be used. The enemy has N strategically importan...
instruction
0
52,599
3
105,198
No
output
1
52,599
3
105,199
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The commanding officers decided to drop a nuclear bomb on the enemy's forces. You are ordered to determine the power of the warhead that needs to be used. The enemy has N strategically importan...
instruction
0
52,600
3
105,200
No
output
1
52,600
3
105,201
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The commanding officers decided to drop a nuclear bomb on the enemy's forces. You are ordered to determine the power of the warhead that needs to be used. The enemy has N strategically importan...
instruction
0
52,601
3
105,202
No
output
1
52,601
3
105,203
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The commanding officers decided to drop a nuclear bomb on the enemy's forces. You are ordered to determine the power of the warhead that needs to be used. The enemy has N strategically importan...
instruction
0
52,602
3
105,204
No
output
1
52,602
3
105,205
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,611
3
105,222
Yes
output
1
52,611
3
105,223
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,612
3
105,224
Yes
output
1
52,612
3
105,225
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,613
3
105,226
Yes
output
1
52,613
3
105,227
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,614
3
105,228
Yes
output
1
52,614
3
105,229
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,615
3
105,230
No
output
1
52,615
3
105,231
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,616
3
105,232
No
output
1
52,616
3
105,233
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,617
3
105,234
No
output
1
52,617
3
105,235
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A flea is sitting at one of the n hassocks, arranged in a circle, at the moment. After minute number k the flea jumps through k - 1 hassoсks (clockwise). For example, after the first minute the ...
instruction
0
52,618
3
105,236
No
output
1
52,618
3
105,237
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,801
3
105,602
Tags: implementation Correct Solution: ``` n = int(input()) counter = 0 a = [[0 for j in range(n)] for i in range(n)] for i in range(n - 1): i, j = map(int, input().split()) a[i - 1][j - 1] = 1 a[j - 1][i - 1] = 1 for element in a: if element.count(1) == 1: counter += 1 print(counter) ```
output
1
52,801
3
105,603
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,802
3
105,604
Tags: implementation Correct Solution: ``` import os import sys debug = True if debug and os.path.exists("input.in"): input = open("input.in", "r").readline else: debug = False input = sys.stdin.readline def inp(): return (int(input())) def inlt(): return (list(map(int, input().split()))) d...
output
1
52,802
3
105,605
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,803
3
105,606
Tags: implementation Correct Solution: ``` t=int(input()) dic1={} dic2={} remotes=[False]*t for i in range(t-1): a,b=input().split() k=dic1.get(a,-1) if k==-1: dic1[a]=list() dic1[a].extend([b]) k=dic2.get(b,-1) if k==-1: dic2[b]=list() dic2[b].extend([a]) for i in range(1,t+...
output
1
52,803
3
105,607
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,804
3
105,608
Tags: implementation Correct Solution: ``` N = int(input()) deg = [0] * N for i in range(N - 1): a, b = map(int, input().split()) deg[a - 1] += 1 deg[b - 1] += 1 num = 0 for i in range(N): if deg[i] == 1: num += 1 print(num) ```
output
1
52,804
3
105,609
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,805
3
105,610
Tags: implementation Correct Solution: ``` __author__ = 'Esfandiar' n = int(input()) g = [[] for i in range(n)] for i in range(n-1): u,v = map(int,input().split()) g[u-1].append(v-1) g[v-1].append(u-1) print(sum([len(g[i])==1 for i in range(n)])) ```
output
1
52,805
3
105,611
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,806
3
105,612
Tags: implementation Correct Solution: ``` n=int(input()) a,d,f=[],0,0 for i in range(n-1): k,l=map(int,input().split()) a.append(k) a.append(l) for i in range(len(a)): d=0 for j in range(len(a)): if i!=j and a[i]==a[j]:d=d+1 if d==0:f=f+1 print(f) ```
output
1
52,806
3
105,613
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,807
3
105,614
Tags: implementation Correct Solution: ``` n=int(input()) arr=[] for i in range(0,n-1): li=list(map(int,input().split())) u=li[0] v=li[1] arr.append(u) arr.append(v) cnt=0 for i in arr: if arr.count(i)==1: cnt+=1 print(cnt) ```
output
1
52,807
3
105,615
Provide tags and a correct Python 3 solution for this coding contest problem. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyperspace tunnels in such a way that there is a pat...
instruction
0
52,808
3
105,616
Tags: implementation Correct Solution: ``` n = int(input()) a = set() b = set() for _ in range(n-1): c1,c2 = map(int,input().split()) for c in [c1,c2]: if c in b: pass else: if c in a: b.add(c) a.remove(c) else: ...
output
1
52,808
3
105,617
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,809
3
105,618
Yes
output
1
52,809
3
105,619
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,810
3
105,620
Yes
output
1
52,810
3
105,621
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,811
3
105,622
Yes
output
1
52,811
3
105,623
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,812
3
105,624
Yes
output
1
52,812
3
105,625
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,813
3
105,626
No
output
1
52,813
3
105,627
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,814
3
105,628
No
output
1
52,814
3
105,629
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,815
3
105,630
No
output
1
52,815
3
105,631
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Resistance is trying to take control over all planets in a particular solar system. This solar system is shaped like a tree. More precisely, some planets are connected by bidirectional hyper...
instruction
0
52,816
3
105,632
No
output
1
52,816
3
105,633
Provide tags and a correct Python 3 solution for this coding contest problem. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocular located at the point with coordinates (i, 0)....
instruction
0
53,343
3
106,686
Tags: brute force, geometry Correct Solution: ``` def gcd(a,b): if b == 0: return a return gcd(b, a % b) def normalize_rational(num,den): #associate the -ve with the num or cancel -ve sign when both are -ve if num ^ den < 0 and num > 0 or num ^ den > 0 and num < 0: num = -num; den =...
output
1
53,343
3
106,687
Provide tags and a correct Python 3 solution for this coding contest problem. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocular located at the point with coordinates (i, 0)....
instruction
0
53,344
3
106,688
Tags: brute force, geometry Correct Solution: ``` from ctypes import c_int32 def gcd(a,b): if b == 0: return a return gcd(b, a % b) def normalize_rational(num,den): #associate the -ve with the num or cancel -ve sign when both are -ve if num ^ den < 0 and num > 0 or num ^ den > 0 and...
output
1
53,344
3
106,689
Provide tags and a correct Python 3 solution for this coding contest problem. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocular located at the point with coordinates (i, 0)....
instruction
0
53,345
3
106,690
Tags: brute force, geometry Correct Solution: ``` 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.buffer = BytesIO() self.writable = "x" in file.mode or "r" not in file.m...
output
1
53,345
3
106,691
Provide tags and a correct Python 3 solution for this coding contest problem. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocular located at the point with coordinates (i, 0)....
instruction
0
53,346
3
106,692
Tags: brute force, geometry Correct Solution: ``` n,m = map(int,input().split()) l = [] anss = [1]*(n+1) for i in range(m): l.append(list(map(int,input().split()))) for i in range(m-1): for j in range(i+1,m): sx = l[i][0] - l[j][0] sy = l[i][1] - l[j][1] ans = 2 if sx: ...
output
1
53,346
3
106,693
Provide tags and a correct Python 3 solution for this coding contest problem. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocular located at the point with coordinates (i, 0)....
instruction
0
53,347
3
106,694
Tags: brute force, geometry Correct Solution: ``` from ctypes import c_int32 def gcd(a,b): if b == 0: return a return gcd(b, a % b) def normalize_rational(num,den): #associate the -ve with the num or cancel -ve sign when both are -ve if num ^ den < 0 and num > 0 or num ^ den > 0 and num < 0...
output
1
53,347
3
106,695
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocula...
instruction
0
53,348
3
106,696
No
output
1
53,348
3
106,697
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocula...
instruction
0
53,349
3
106,698
No
output
1
53,349
3
106,699
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocula...
instruction
0
53,350
3
106,700
No
output
1
53,350
3
106,701
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The Zoo in the Grid Kingdom is represented by an infinite grid. The Zoo has n observation binoculars located at the OX axis. For each i between 1 and n, inclusive, there exists a single binocula...
instruction
0
53,351
3
106,702
No
output
1
53,351
3
106,703
Provide tags and a correct Python 3 solution for this coding contest problem. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ignored. The balls collide elastically, i.e. if t...
instruction
0
53,399
3
106,798
Tags: brute force, implementation, math Correct Solution: ``` class Ball: def __init__(self, x, v, m): self.v = v self.x = x self.m = m def move(self, time): self.x += self.v * time def collisionTime(self, other): if self.v == other.v: return float("inf"...
output
1
53,399
3
106,799
Provide tags and a correct Python 3 solution for this coding contest problem. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ignored. The balls collide elastically, i.e. if t...
instruction
0
53,400
3
106,800
Tags: brute force, implementation, math Correct Solution: ``` n,t=map(int,input().split()) ar=[] for _ in range(n):ar.append(list(map(int,input().split()))) cur=0 while True: T=float('inf') nums=[] for i in range(n): for j in range(i): vd=ar[i][1]-ar[j][1] xd=ar[i][0]-ar[j][0...
output
1
53,400
3
106,801
Provide tags and a correct Python 3 solution for this coding contest problem. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ignored. The balls collide elastically, i.e. if t...
instruction
0
53,401
3
106,802
Tags: brute force, implementation, math Correct Solution: ``` import sys from array import array # noqa: F401 def input(): return sys.stdin.buffer.readline().decode('utf-8') n, t = map(int, input().split()) t = float(t) balls = sorted(list(map(float, input().split())) + [i] for i in range(n)) eps = 1e-9 def ...
output
1
53,401
3
106,803
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ign...
instruction
0
53,402
3
106,804
No
output
1
53,402
3
106,805
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ign...
instruction
0
53,403
3
106,806
No
output
1
53,403
3
106,807
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ign...
instruction
0
53,404
3
106,808
No
output
1
53,404
3
106,809
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. On a number line there are n balls. At time moment 0 for each ball the following data is known: its coordinate xi, speed vi (possibly, negative) and weight mi. The radius of the balls can be ign...
instruction
0
53,405
3
106,810
No
output
1
53,405
3
106,811