Best Python code snippet using slash
test_dsu.py
Source:test_dsu.py  
...7from graph_algorithms.exception.graph_exception import DataStructureIsEmptyException8from graph_algorithms.exception.messages import data_structure_is_empty_message9def test_find_negative1():10    s = DSU()11    s.make_set(1)12    with pytest.raises(NotContainsElementException) as exception_info:13        s.find(5)14    assert str(exception_info.value) == not_contains_element_message()15def test_find_negative2():16    s = DSU()17    with pytest.raises(DataStructureIsEmptyException) as exception_info:18        s.find(11)19    assert str(exception_info.value) == data_structure_is_empty_message()20def test_find_positive():21    s = DSU()22    s.make_set(1)23    s.make_set(2)24    s.make_set(3)25    s.make_set(4)26    assert s.find(1) == 127    assert s.find(2) == 228    assert s.find(3) == 329    assert s.find(4) == 430def test_unite1():31    s = DSU()32    s.make_set(1)33    s.make_set(2)34    s.make_set(3)35    s.make_set(4)36    s.make_set(5)37    s.unite(1, 4)38    s.unite(3, 5)39    assert s.find(1) == s.find(4)40    assert s.find(5) == s.find(5)41    assert s.find(2) == 242def test_unite2():43    s = DSU()44    s.make_set(2)45    s.make_set(4)46    s.make_set(6)47    s.make_set(8)48    s.make_set(10)49    s.unite(2, 4)50    s.unite(6, 8)51    assert s.find(2) == s.find(4)52    assert s.find(6) == s.find(8)53    s.unite(8, 2)54    assert s.find(2) == s.find(8)55    assert s.find(2) == s.find(4)56    assert s.find(2) == s.find(6)57    s.unite(6, 10)58    assert s.find(2) == s.find(8)59    assert s.find(2) == s.find(4)60    assert s.find(2) == s.find(6)...10216_Count_Circle_Groups_version1.py
Source:10216_Count_Circle_Groups_version1.py  
1import sys2def input():3    return sys.stdin.readline().rstrip()4def find_parents(x,make_set):5    if make_set[x] == x:6        return x7    make_set[x] = find_parents(make_set[x],make_set)8    return make_set[x]9def union(x,y,make_set):10    X = find_parents(x,make_set)11    Y = find_parents(y,make_set)12    if X<Y:13        make_set[Y] = make_set[X]14    else:15        make_set[X] = make_set[Y]            16def solve():17    N = int(input())18    nodes = []19    make_set = [i for i in range(N)]20    nodes = [list(map(int,input().split())) for _ in range(N)]21    for a1 in range(N-1):22        for a2 in range(a1+1,N):23            x1,y1,r1 = nodes[a1]24            x2,y2,r2 = nodes[a2]25            if (x1-x2)**2  + (y1-y2)**2 <= (r1+r2)**2:26                if find_parents(a1,make_set) == find_parents(a2,make_set):continue27                union(a1,a2,make_set)28    ans = 029    for ind in range(N):30        if find_parents(ind,make_set) == ind:31            ans += 132    print(ans)33if __name__ == "__main__":34    T = int(input())35    for _ in range(T):...disjoint_set_forest.py
Source:disjoint_set_forest.py  
1# implementation of disjoint set data structure2# using forests and union by rank and path compression3		4class Disjoint_Set_Forest:5	def Make_Set(self,x):6		x.P = x7	8	def Find_Set(self,x):9		if x != x.P:10			x.P = self.Find_Set(x.P)11		return x.P12		13	def Link(self,x,y):14		if x.Rank > y.Rank:15			y.P = x16		else:17			x.P = y18			if x.Rank == y.Rank:19				y.Rank+=120	21	def Union(self,x,y):22		self.Link(self.Find_Set(x),self.Find_Set(y))23		24		25		26		27def main():28	from weighted_graph import Vertex29	30	DSF = Disjoint_Set_Forest()31 	a = Vertex("a")32	DSF.Make_Set(a)33	b = Vertex("b")34	DSF.Make_Set(b)35	c = Vertex("c")36	DSF.Make_Set(c)37	d = Vertex("d")38	DSF.Make_Set(d)39	e = Vertex("e")40	DSF.Make_Set(e)41	DSF.Union(a,b)42	DSF.Union(c,d)43	print(DSF.Find_Set(a).Key)44	DSF.Union(b,c)45	print(DSF.Find_Set(a).Key)46	47if __name__ == "__main__":...Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!
