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Provide tags and a correct Python 3 solution for this coding contest problem. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city it is possible to get to any other city by exis...
instruction
0
89,589
1
179,178
Tags: graphs, shortest paths Correct Solution: ``` N = int(input()) grid = [] for n in range(N): grid.append(list(map(int,input().split()))) K = int(input()) ret = [] for k in range(K): A, B, C = map(int,input().split()) ans = 0 A -= 1 B -= 1 grid[A][B] = grid[B][A] = min(C,grid[A][B]) for i...
output
1
89,589
1
179,179
Provide tags and a correct Python 3 solution for this coding contest problem. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city it is possible to get to any other city by exis...
instruction
0
89,590
1
179,180
Tags: graphs, shortest paths Correct Solution: ``` N = int(input()) M = [] for n in range(N): M.append(list(map(int,input().split()))) K = int(input()) ret = [] for k in range(K): A, B, C = map(int,input().split()) ans = 0 A -= 1 B -= 1 M[A][B] = M[B][A] = min(C,M[A][B]) for i in range(N): ...
output
1
89,590
1
179,181
Provide tags and a correct Python 3 solution for this coding contest problem. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city it is possible to get to any other city by exis...
instruction
0
89,591
1
179,182
Tags: graphs, shortest paths Correct Solution: ``` n = int(input()) mat = [] for _ in range(n): mat.append(list(map(int, input().split()))) q = int(input()) ans= [] for _ in range(q): x, y, w = map(int, input().split()) x-=1 y-=1 mat[x][y] = mat[y][x] = min(mat[x][y], w) sum1 = 0 for i in ra...
output
1
89,591
1
179,183
Provide tags and a correct Python 3 solution for this coding contest problem. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city it is possible to get to any other city by exis...
instruction
0
89,592
1
179,184
Tags: graphs, shortest paths Correct Solution: ``` n = int(input()) a = [] for i in range(n): a.append(list(map(int,input().split()))) k = int(input()) for y in range(k): u,v,d = map(int,input().split()) u = u-1 v = v-1 a[u][v] = min(a[u][v],d) for i in range(n): for j in range(n): ...
output
1
89,592
1
179,185
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city ...
instruction
0
89,593
1
179,186
Yes
output
1
89,593
1
179,187
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city ...
instruction
0
89,594
1
179,188
Yes
output
1
89,594
1
179,189
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city ...
instruction
0
89,595
1
179,190
No
output
1
89,595
1
179,191
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city ...
instruction
0
89,596
1
179,192
No
output
1
89,596
1
179,193
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city ...
instruction
0
89,597
1
179,194
No
output
1
89,597
1
179,195
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities numbered from 1 to n in Berland. Some of them are connected by two-way roads. Each road has its own length β€” an integer number from 1 to 1000. It is known that from each city ...
instruction
0
89,598
1
179,196
No
output
1
89,598
1
179,197
Provide tags and a correct Python 3 solution for this coding contest problem. In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an hour you can go along this road either from city...
instruction
0
89,690
1
179,380
Tags: constructive algorithms, graphs, shortest paths Correct Solution: ``` import sys from collections import deque n, m = [int(i) for i in sys.stdin.readline().split()] neighbors = [set() for _ in range(n)] for i in range(m): m1, m2 = [int(i) for i in sys.stdin.readline().split()] neighbors[m1-1].add(m2-1) ...
output
1
89,690
1
179,381
Provide tags and a correct Python 3 solution for this coding contest problem. In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an hour you can go along this road either from city...
instruction
0
89,691
1
179,382
Tags: constructive algorithms, graphs, shortest paths Correct Solution: ``` from itertools import combinations_with_replacement from collections import deque #sys.stdin = open("input_py.txt","r") n, m = map(int, input().split()) G = [ [] for i in range(n)] for i in range(m): x, y = map(int, input().split()) ...
output
1
89,691
1
179,383
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an h...
instruction
0
89,692
1
179,384
No
output
1
89,692
1
179,385
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an h...
instruction
0
89,693
1
179,386
No
output
1
89,693
1
179,387
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an h...
instruction
0
89,694
1
179,388
No
output
1
89,694
1
179,389
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an h...
instruction
0
89,695
1
179,390
No
output
1
89,695
1
179,391
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,712
1
179,424
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` from collections import deque from sys import stdin from sys import exit #parsea una lΓ­nea def parser(): return map(int, stdin.readline().split()) #MΓ©todo usado para obtener los vΓ©rtices por los que debe pasar Super M def DFS_Discriminiting(): vis...
output
1
89,712
1
179,425
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,713
1
179,426
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` from collections import deque n,m = [int(x) for x in input().split()] adj = [[] for x in range(n+1)] for _ in range(1,n): a,b = [int(x) for x in input().split()] adj[a].append(b) adj[b].append(a) chaos = [int(x) for x in input().split()] s = chaos[0] cha...
output
1
89,713
1
179,427
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,714
1
179,428
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` from heapq import * INF = float('inf') n, m = map(int, input().split()) adj = [[] for _ in range(n+1)] wg= ng = [0 for _ in range(n+1)] for _ in range(n-1): a, b = map(int, input().split()) adj[a].append(b) adj[b].append(a) aaa = set(map(int, ...
output
1
89,714
1
179,429
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,715
1
179,430
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` from collections import deque from sys import stdin from sys import exit #parser def parser(): return map(int, stdin.readline().split()) def DFS_Discriminiting(): #visitados visited=[False for x in range(n)] visited[numbers_of_attacked_cit...
output
1
89,715
1
179,431
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,716
1
179,432
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` import sys d = list(map(int, sys.stdin.read().split())) n, m = d[0], d[1] k = 2 * n class T: def __init__(t, i): t.p = set() t.h = t.d = 0 t.k = i def g(k, h): print(k, h) exit() t = [T(i) for i in range(n + 1)] for i...
output
1
89,716
1
179,433
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,717
1
179,434
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` from collections import deque from sys import exit #parser def parser(): return [int(x) for x in input().split()] def DFS_Discriminiting(): #visitados visited=[False for x in range(n)] visited[numbers_of_attacked_cities[0]]=True stack=...
output
1
89,717
1
179,435
Provide tags and a correct Python 3 solution for this coding contest problem. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional roads. Every road connects exactly two distinct...
instruction
0
89,718
1
179,436
Tags: dfs and similar, dp, graphs, trees Correct Solution: ``` def f(k, h): print(k, h) exit() def g(p): i = p.pop() return i, t[i] import sys d = list(map(int, sys.stdin.read().split())) n, m = d[0], d[1] if n == 1: f(1, 0) k = 2 * n t = [[0, set(), i, 0] for i in range(n + 1)] for i in d[k:]: t[i...
output
1
89,718
1
179,437
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional ...
instruction
0
89,719
1
179,438
No
output
1
89,719
1
179,439
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional ...
instruction
0
89,720
1
179,440
No
output
1
89,720
1
179,441
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional ...
instruction
0
89,721
1
179,442
No
output
1
89,721
1
179,443
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Ari the monster is not an ordinary monster. She is the hidden identity of Super M, the Byteforces’ superhero. Byteforces is a country that consists of n cities, connected by n - 1 bidirectional ...
instruction
0
89,722
1
179,444
No
output
1
89,722
1
179,445
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,851
1
179,702
Tags: constructive algorithms, greedy Correct Solution: ``` n = int(input()) b,r,p = None, None, None res = 0 mr = -1 mb = -1 for i in range(n): ix,t = input().split() ix = int(ix) if t != 'R': if b is not None: res += ix-b mb = max(mb, ix-b) b = ix if t != 'B': ...
output
1
89,851
1
179,703
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,852
1
179,704
Tags: constructive algorithms, greedy Correct Solution: ``` def solve(length, cities): result = 0 lastP = None lastB = None lastR = None maxB = 0 maxR = 0 for idx, city in enumerate(cities): i, code = city if(code == 'B'): if(lastB != None): result += abs(i - lastB) maxB = ma...
output
1
89,852
1
179,705
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,853
1
179,706
Tags: constructive algorithms, greedy Correct Solution: ``` def inpmap(): return map(int, input().split()) n = int(input()) b, r, p = None, None, None res = 0 mr = -1 mb = -1 for i in range(n): ix, t = input().split() ix = int(ix) if t != 'R': if b is not None: res += ix - b ...
output
1
89,853
1
179,707
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,854
1
179,708
Tags: constructive algorithms, greedy Correct Solution: ``` from sys import exit, stdin, stdout input, print = stdin.readline, stdout.write n = int(input()) r, g, b = [], [], [] ans = 0 for i in range(n): x, t = [i for i in input().split()] x = int(x) if t == 'P': g.append(x) elif t == 'R': ...
output
1
89,854
1
179,709
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,855
1
179,710
Tags: constructive algorithms, greedy Correct Solution: ``` n=int(input()) last_r=None last_b=None last_p=None ans=0 max_r=0 max_b=0 max_p=0 for _ in range(n): s=input().split() x=int(s[0]) c=s[1] if c=='B': if last_b!=None: ans+=x-last_b max_b=max(max_b,x-last_b) ...
output
1
89,855
1
179,711
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,856
1
179,712
Tags: constructive algorithms, greedy Correct Solution: ``` rides = int(input()) franxx = [] Zero = [] Two = [] for i in range(rides): darling = input().split() if (darling[1] == 'B'): darling[1] = 1 elif (darling[1] == 'R'): darling[1] = 2 else: darling[1] = 3 franxx.append((int(darling[0]), int(darling[1]...
output
1
89,856
1
179,713
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,857
1
179,714
Tags: constructive algorithms, greedy Correct Solution: ``` import sys n = int(sys.stdin.buffer.readline().decode('utf-8')) pos, type_ = [0]*n, ['']*n for i, (x, c) in enumerate(line.decode('utf-8').split() for line in sys.stdin.buffer): pos[i] = int(x) type_[i] = c r_cnt = type_.count('R') b_cnt = type_.co...
output
1
89,857
1
179,715
Provide tags and a correct Python 3 solution for this coding contest problem. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line Ox there are three types of cities: * the c...
instruction
0
89,858
1
179,716
Tags: constructive algorithms, greedy Correct Solution: ``` n = int(input()) b, r, p = None, None, None ans = 0 mr = -1 mb = -1 for i in range(n): ix, t = input().split() ix = int(ix) if t != 'R': if b is not None: ans += ix - b mb = max(mb, ix - b) b = ix if t != 'B': if r is not None: ...
output
1
89,858
1
179,717
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line...
instruction
0
89,859
1
179,718
Yes
output
1
89,859
1
179,719
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line...
instruction
0
89,860
1
179,720
No
output
1
89,860
1
179,721
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line...
instruction
0
89,861
1
179,722
No
output
1
89,861
1
179,723
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line...
instruction
0
89,862
1
179,724
No
output
1
89,862
1
179,725
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The cities of Byteland and Berland are located on the axis Ox. In addition, on this axis there are also disputed cities, which belong to each of the countries in their opinion. Thus, on the line...
instruction
0
89,863
1
179,726
No
output
1
89,863
1
179,727
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Pavel plays a famous computer game. A player is responsible for a whole country and he can travel there freely, complete quests and earn experience. This country has n cities connected by m bid...
instruction
0
90,402
1
180,804
No
output
1
90,402
1
180,805
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,686
1
181,372
Yes
output
1
90,686
1
181,373
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,687
1
181,374
Yes
output
1
90,687
1
181,375
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,688
1
181,376
Yes
output
1
90,688
1
181,377
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,689
1
181,378
Yes
output
1
90,689
1
181,379
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,690
1
181,380
No
output
1
90,690
1
181,381
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,691
1
181,382
No
output
1
90,691
1
181,383
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,692
1
181,384
No
output
1
90,692
1
181,385
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The busses in Berland are equipped with a video surveillance system. The system records information about changes in the number of passengers in a bus after stops. If x is the number of passeng...
instruction
0
90,693
1
181,386
No
output
1
90,693
1
181,387
Provide a correct Python 3 solution for this coding contest problem. J: City Santa decides to deliver a present to a city. The city has a rectangular shape divided into north-south $ H $ parcels x east-west $ W $ parcels, with one house delivering gifts to each parcel. The $ X $ th section from the north and the $ ...
instruction
0
90,932
1
181,864
"Correct Solution: ``` h, w, s, t = map(int, input().split()) if h * w % 2 == 1: if (s + t) % 2 == 1: print("No") else: print("Yes") else: print("Yes") ```
output
1
90,932
1
181,865