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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp watched TV-show where k jury members one by one rated a participant by adding him a certain number of points (may be negative, i. e. points were subtracted). Initially the participant h...
instruction
0
67,825
24
135,650
No
output
1
67,825
24
135,651
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp watched TV-show where k jury members one by one rated a participant by adding him a certain number of points (may be negative, i. e. points were subtracted). Initially the participant h...
instruction
0
67,826
24
135,652
No
output
1
67,826
24
135,653
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp watched TV-show where k jury members one by one rated a participant by adding him a certain number of points (may be negative, i. e. points were subtracted). Initially the participant h...
instruction
0
67,827
24
135,654
No
output
1
67,827
24
135,655
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp watched TV-show where k jury members one by one rated a participant by adding him a certain number of points (may be negative, i. e. points were subtracted). Initially the participant h...
instruction
0
67,828
24
135,656
No
output
1
67,828
24
135,657
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,531
24
137,062
Tags: dp, greedy, math Correct Solution: ``` i_speed, f_speed = input().split(" ") time, transition = input().split(" ") i_speed = int(i_speed) f_speed = int(f_speed) time = int(time) transition = int(transition) path = [ i_speed ] * time for i in range( 1, len(path) ): path[i] += transition*i while path[i] ...
output
1
68,531
24
137,063
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,532
24
137,064
Tags: dp, greedy, math Correct Solution: ``` #for _ in range(int(input())): import math v1,v2= map(int, input().split()) t,d= map(int, input().split()) ans=v1+v2 speed=v1 rem=t-2+1 for i in range(t-2): if speed+d-(rem-1)*d<=v2: speed+=d ans+=speed rem-=1 else: x=v2+(rem-1)*d-spe...
output
1
68,532
24
137,065
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,533
24
137,066
Tags: dp, greedy, math Correct Solution: ``` def arr_inp(n): if n == 1: return [int(x) for x in stdin.readline().split()] elif n == 2: return [float(x) for x in stdin.readline().split()] else: return [str(x) for x in stdin.readline().split()] def dp(): p = 0 mem[p, v1] = v1...
output
1
68,533
24
137,067
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,534
24
137,068
Tags: dp, greedy, math Correct Solution: ``` import itertools v1, v2 = map(int, str.split(input())) t, d = map(int, str.split(input())) cv = v1 s = v1 + v2 steps = list(itertools.accumulate((v1,) + tuple(range(2, t)), lambda x, _: x + d)) + [v2] for i in range(t - 1, -1, -1): if steps[i - 1] - steps[i] > d: ...
output
1
68,534
24
137,069
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,535
24
137,070
Tags: dp, greedy, math Correct Solution: ``` u1, u2=map(int, input().split()) t, d=map(int,input().split()) if u1 > u2: u1,u2=u2,u1 s = [u1 for i in range(t-1)] s.append(u2) l=1 r=t-2 for i in range(t-2, 0, -1): s[i]=s[i+1]+d i =1 while s[i] -s[i-1]>d: s[i]=s[i-1]+d i+=1 print(sum(s)) ```
output
1
68,535
24
137,071
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,536
24
137,072
Tags: dp, greedy, math Correct Solution: ``` v1,v2 = map(int,input().split()) t,d = map(int,input().split()) if v1>v2: z = v1 v1 = v2 v2 = z ans = v1 cur = v1 for i in range(2,t+1): temp = (t-i)*d f = 0 for j in range(d,-1,-1): if abs((cur+j)-v2)<=temp: f=1 cur +=...
output
1
68,536
24
137,073
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,537
24
137,074
Tags: dp, greedy, math Correct Solution: ``` v1, v2 = map(int, input().split()) t, d = map(int, input().split()) a = [0]*t a[0] = v1 a[t-1] = v2 for i in range(1, t-1): a[i] = a[i-1]+d k = t-1 while abs(a[k]-a[k-1]) > d: if a[k]-a[k-1] > 0: a[k-1] = a[k]-d else: a[k-1] = a[k]+d k -=...
output
1
68,537
24
137,075
Provide tags and a correct Python 3 solution for this coding contest problem. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know that this section of the route took exactly t se...
instruction
0
68,538
24
137,076
Tags: dp, greedy, math Correct Solution: ``` u,v=(int(i) for i in input().split()) t,d=(int(i) for i in input().split()) dist=0 for i in range(t): dist+=min(u+(d*i),v+(d*(t-i-1))) print(dist) ```
output
1
68,538
24
137,077
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,539
24
137,078
Yes
output
1
68,539
24
137,079
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,540
24
137,080
Yes
output
1
68,540
24
137,081
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,541
24
137,082
Yes
output
1
68,541
24
137,083
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,542
24
137,084
Yes
output
1
68,542
24
137,085
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,543
24
137,086
No
output
1
68,543
24
137,087
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,544
24
137,088
No
output
1
68,544
24
137,089
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,545
24
137,090
No
output
1
68,545
24
137,091
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The on-board computer on Polycarp's car measured that the car speed at the beginning of some section of the path equals v1 meters per second, and in the end it is v2 meters per second. We know t...
instruction
0
68,546
24
137,092
No
output
1
68,546
24
137,093
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,649
24
137,298
Tags: *special, graphs, implementation Correct Solution: ``` n = int(input()) names_set = set() s = {} names = [] arr = [[] for j in range(n)] g = 0 for i in range(n): el = input() names_set.add(el.split()[0]) ind = 0 if s.get(el) is None: s[el] = g names.append(el) g += 1 k...
output
1
68,649
24
137,299
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,650
24
137,300
Tags: *special, graphs, implementation Correct Solution: ``` from queue import Queue def main(): n = int(input()) d = {} res = {} start = None for i in range(n): project, version = input().split() version = int(version) if i == 0: start = project, version ...
output
1
68,650
24
137,301
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,651
24
137,302
Tags: *special, graphs, implementation Correct Solution: ``` # f = open("input.txt") # def readline(): # return f.readline().strip() def readline(): return input() def read_project(): project = readline().split(" ") project[1] = int(project[1]) dep_num = int(readline()) deps = {} for _ in ...
output
1
68,651
24
137,303
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,652
24
137,304
Tags: *special, graphs, implementation Correct Solution: ``` def read_pack(): name, ver = input().strip().split() return (name, int(ver)) n = int(input()) deps = dict() for i in range(n): pack = read_pack() if not i: root = pack dep_n = int(input()) deps[pack] = [read_pack() for _ in ra...
output
1
68,652
24
137,305
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,653
24
137,306
Tags: *special, graphs, implementation Correct Solution: ``` def read_pack(): name, ver = input().strip().split() return (name, int(ver)) n = int(input()) deps = dict() for i in range(n): pack = read_pack() if not i: root = pack dep_n = int(input()) deps[pack] = [read_pack() for _ in ra...
output
1
68,653
24
137,307
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,654
24
137,308
Tags: *special, graphs, implementation Correct Solution: ``` from sys import stdin, stdout def read_pack(): name, ver = stdin.readline().split() return (name, int(ver)) n = int(input()) deps = dict() for i in range(n): pack = read_pack() if not i: root = pack dep_n = int(input()) deps...
output
1
68,654
24
137,309
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,655
24
137,310
Tags: *special, graphs, implementation Correct Solution: ``` def scan_project(): name, version_str = input().split() return (name, int(version_str)) n = int(input()) projects, depends = [], {} for i in range(n): if i > 0: input() project = scan_project() projects.append(project) depends...
output
1
68,655
24
137,311
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated projects for simplicity. A project in Vaja has...
instruction
0
68,656
24
137,312
Tags: *special, graphs, implementation Correct Solution: ``` def read_pack(): name, ver = input().split() return (name, int(ver)) n = int(input()) deps = dict() for i in range(n): pack = read_pack() if not i: root = pack dep_n = int(input()) deps[pack] = [read_pack() for _ in range(dep_...
output
1
68,656
24
137,313
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,657
24
137,314
Yes
output
1
68,657
24
137,315
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,658
24
137,316
Yes
output
1
68,658
24
137,317
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,659
24
137,318
Yes
output
1
68,659
24
137,319
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,660
24
137,320
Yes
output
1
68,660
24
137,321
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,661
24
137,322
No
output
1
68,661
24
137,323
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,662
24
137,324
No
output
1
68,662
24
137,325
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,663
24
137,326
No
output
1
68,663
24
137,327
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp is currently developing a project in Vaja language and using a popular dependency management system called Vamen. From Vamen's point of view both Vaja project and libraries are treated ...
instruction
0
68,664
24
137,328
No
output
1
68,664
24
137,329
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,856
24
139,712
Tags: implementation Correct Solution: ``` #Codeforce 1095A s=int(input()) str1=input() str2="" k=int((s*2)**0.5) for i in range(k): str2 += str1[i*(i+1)//2] print(str2) ```
output
1
69,856
24
139,713
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,857
24
139,714
Tags: implementation Correct Solution: ``` n=int(input()) s=input() a='' c=1 i=1 while c <= len(s): a+=s[c-1] i+=1 c=(i*(i+1))//2 print(a) ```
output
1
69,857
24
139,715
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,858
24
139,716
Tags: implementation Correct Solution: ``` n = input();a =0 if len(n)%2==0:x = n[-1];n = n[0:len(n)-1];a=1 z = len(n)//2 s = n[z] for i in range(1,z+1): s+=n[z+i] s+=n[z-i] if a ==1:print(s+x) else:print(s) ```
output
1
69,858
24
139,717
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,859
24
139,718
Tags: implementation Correct Solution: ``` n = int(input()) s = input() i = 0 count = 0 while i<n : print(s[i], end = '') count+=1 i+=count ```
output
1
69,859
24
139,719
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,860
24
139,720
Tags: implementation Correct Solution: ``` n=int(input()) s=input() a=1 i=0 while i!=n: print(s[i],end='') i+=a a+=1 ```
output
1
69,860
24
139,721
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,861
24
139,722
Tags: implementation Correct Solution: ``` n=int(input()) s=input() x=((1+8*n)**0.5-1)/2 #print(int(x)) p='' k=0 for i in range(1,int(x)+1): p=p+s[k] k=k+i print(p) ```
output
1
69,861
24
139,723
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,862
24
139,724
Tags: implementation Correct Solution: ``` import sys import math n=int(input()) s=sys.stdin.readline().strip() res=[] count=1 L=(math.sqrt(1+8*n)-1)//2 i=0 while count<=L: res.append(s[i]) i+=count count+=1 es="".join(res) print(es) ```
output
1
69,862
24
139,725
Provide tags and a correct Python 3 solution for this coding contest problem. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the following algorithm: * he writes down s_1 ones, ...
instruction
0
69,863
24
139,726
Tags: implementation Correct Solution: ``` t = int(input()) s = input() i = 0; j = 1; while i < t: print(s[i], end = '') i += j j += 1 ```
output
1
69,863
24
139,727
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the follo...
instruction
0
69,864
24
139,728
Yes
output
1
69,864
24
139,729
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the follo...
instruction
0
69,865
24
139,730
Yes
output
1
69,865
24
139,731
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the follo...
instruction
0
69,866
24
139,732
Yes
output
1
69,866
24
139,733
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the follo...
instruction
0
69,867
24
139,734
Yes
output
1
69,867
24
139,735
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the follo...
instruction
0
69,868
24
139,736
No
output
1
69,868
24
139,737
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Polycarp loves ciphers. He has invented his own cipher called repeating. Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≀ m ≀ 10), Polycarp uses the follo...
instruction
0
69,869
24
139,738
No
output
1
69,869
24
139,739