Submission #1766489
Source Code Expand
from sys import stdin def IL():return list(map(int, stdin.readline().split())) class Dinic: def __init__(self, v, inf=float("inf")): self.V = v self.inf = inf self.G = [[] for _ in range(v)] self.level = [0 for _ in range(v)] self.iter = [0 for _ in range(v)] def addEdge(self, fm, to, cap): ''' to:行き先 cap:容量 rev:反対側の辺 ''' self.G[fm].append({'to':to, 'cap':cap, 'rev':len(self.G[to])}) self.G[to].append({'to':fm, 'cap':0, 'rev':len(self.G[fm])-1}) # sからの最短距離をbfsで計算 def bfs(self, s): import queue self.level = [-1 for _ in range(self.V)] self.level[s] = 0 que = queue.Queue() que.put(s) while not que.empty(): v = que.get() for i in range(len(self.G[v])): e = self.G[v][i] if e['cap'] > 0 and self.level[e['to']] < 0: self.level[e['to']] = self.level[v] + 1 que.put(e['to']) def dfs(self, v, t, f): if v == t: return f for i in range(self.iter[v], len(self.G[v])): self.iter[v] = i e = self.G[v][i] if e['cap'] > 0 and self.level[v] < self.level[e['to']]: d = self.dfs(e['to'], t ,min(f,e['cap'])) if d > 0: e['cap'] -= d self.G[e['to']][e['rev']]['cap'] += d return d return 0 def max_flow(self,s,t): flow = 0 while True: self.bfs(s) if self.level[t] < 0: return flow self.iter = [0 for _ in range(self.V)] f = self.dfs(s,t,self.inf) while f > 0: flow += f f = self.dfs(s,t,self.inf) def main(): N,G,E = IL() p = IL() d = Dinic(102) for i in range(E): a,b = IL() d.addEdge(a,b,1) d.addEdge(b,a,1) for i in p: d.addEdge(i,N,1) d.addEdge(N,i,1) print(d.max_flow(0,N)) if __name__ == "__main__": main()
Submission Info
Submission Time | |
---|---|
Task | D - 浮気予防 |
User | yk16 |
Language | Python (3.4.3) |
Score | 100 |
Code Size | 1915 Byte |
Status | AC |
Exec Time | 63 ms |
Memory | 10224 KB |
Judge Result
Set Name | part | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 99 / 99 | 1 / 1 | ||||
Status |
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Set Name | Test Cases |
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part | test_01_AB.txt, test_02_AB.txt, test_03_AB.txt, test_04_AB.txt, test_05_AB.txt, test_06_AB.txt, test_07_AB.txt, test_08_AB.txt, test_09_AB.txt, test_10_AB.txt, test_11_AB.txt, test_12_AB.txt, test_13_AB.txt, test_14_AB.txt, test_15_AB.txt, test_16_AB.txt, test_17_AB.txt, test_18_AB.txt, test_19_AB.txt, test_20_AB.txt, test_21_AB.txt, test_22_AB.txt, test_23_AB.txt, test_24_AB.txt, test_25_AB.txt, test_41_AB.txt, test_47_AB.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, sample_05.txt, sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, sample_05.txt, test_01_AB.txt, test_02_AB.txt, test_03_AB.txt, test_04_AB.txt, test_05_AB.txt, test_06_AB.txt, test_07_AB.txt, test_08_AB.txt, test_09_AB.txt, test_10_AB.txt, test_11_AB.txt, test_12_AB.txt, test_13_AB.txt, test_14_AB.txt, test_15_AB.txt, test_16_AB.txt, test_17_AB.txt, test_18_AB.txt, test_19_AB.txt, test_20_AB.txt, test_21_AB.txt, test_22_AB.txt, test_23_AB.txt, test_24_AB.txt, test_25_AB.txt, test_26_A.txt, test_27_A.txt, test_28_A.txt, test_29_A.txt, test_30_A.txt, test_31_A.txt, test_32_A.txt, test_33_A.txt, test_34_A.txt, test_35_A.txt, test_36_A.txt, test_37_A.txt, test_38_A.txt, test_39_A.txt, test_40_A.txt, test_41_AB.txt, test_42_A.txt, test_43_A.txt, test_44_A.txt, test_45_A.txt, test_46_A.txt, test_47_AB.txt, test_48_A.txt, test_49_A.txt, test_50_A.txt, test_51_A.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 40 ms | 4336 KB |
sample_02.txt | AC | 26 ms | 3952 KB |
sample_03.txt | AC | 26 ms | 3952 KB |
sample_04.txt | AC | 26 ms | 3952 KB |
sample_05.txt | AC | 26 ms | 3936 KB |
test_01_AB.txt | AC | 26 ms | 3952 KB |
test_02_AB.txt | AC | 26 ms | 3952 KB |
test_03_AB.txt | AC | 26 ms | 3952 KB |
test_04_AB.txt | AC | 26 ms | 3952 KB |
test_05_AB.txt | AC | 27 ms | 4080 KB |
test_06_AB.txt | AC | 26 ms | 3952 KB |
test_07_AB.txt | AC | 26 ms | 3952 KB |
test_08_AB.txt | AC | 26 ms | 3952 KB |
test_09_AB.txt | AC | 26 ms | 4020 KB |
test_10_AB.txt | AC | 26 ms | 4080 KB |
test_11_AB.txt | AC | 26 ms | 3952 KB |
test_12_AB.txt | AC | 26 ms | 3952 KB |
test_13_AB.txt | AC | 26 ms | 3952 KB |
test_14_AB.txt | AC | 26 ms | 3948 KB |
test_15_AB.txt | AC | 26 ms | 3944 KB |
test_16_AB.txt | AC | 26 ms | 3944 KB |
test_17_AB.txt | AC | 26 ms | 4080 KB |
test_18_AB.txt | AC | 26 ms | 3952 KB |
test_19_AB.txt | AC | 26 ms | 4080 KB |
test_20_AB.txt | AC | 26 ms | 3912 KB |
test_21_AB.txt | AC | 26 ms | 4080 KB |
test_22_AB.txt | AC | 26 ms | 3952 KB |
test_23_AB.txt | AC | 26 ms | 3952 KB |
test_24_AB.txt | AC | 26 ms | 3952 KB |
test_25_AB.txt | AC | 26 ms | 4072 KB |
test_26_A.txt | AC | 58 ms | 10224 KB |
test_27_A.txt | AC | 62 ms | 10224 KB |
test_28_A.txt | AC | 62 ms | 10212 KB |
test_29_A.txt | AC | 61 ms | 10096 KB |
test_30_A.txt | AC | 61 ms | 10088 KB |
test_31_A.txt | AC | 63 ms | 10212 KB |
test_32_A.txt | AC | 30 ms | 4840 KB |
test_33_A.txt | AC | 50 ms | 6956 KB |
test_34_A.txt | AC | 30 ms | 4412 KB |
test_35_A.txt | AC | 37 ms | 5232 KB |
test_36_A.txt | AC | 32 ms | 4668 KB |
test_37_A.txt | AC | 39 ms | 6000 KB |
test_38_A.txt | AC | 27 ms | 4080 KB |
test_39_A.txt | AC | 26 ms | 4068 KB |
test_40_A.txt | AC | 26 ms | 3944 KB |
test_41_AB.txt | AC | 26 ms | 3912 KB |
test_42_A.txt | AC | 46 ms | 6512 KB |
test_43_A.txt | AC | 27 ms | 4080 KB |
test_44_A.txt | AC | 35 ms | 5104 KB |
test_45_A.txt | AC | 27 ms | 4200 KB |
test_46_A.txt | AC | 27 ms | 4208 KB |
test_47_AB.txt | AC | 26 ms | 3952 KB |
test_48_A.txt | AC | 28 ms | 4200 KB |
test_49_A.txt | AC | 28 ms | 4200 KB |
test_50_A.txt | AC | 26 ms | 4068 KB |
test_51_A.txt | AC | 26 ms | 4080 KB |