結果

問題 No.2320 Game World for PvP
ユーザー ShirotsumeShirotsume
提出日時 2023-05-26 23:08:08
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 143 ms / 2,000 ms
コード長 3,945 bytes
コンパイル時間 407 ms
コンパイル使用メモリ 82,048 KB
実行使用メモリ 80,500 KB
最終ジャッジ日時 2024-06-07 08:46:56
合計ジャッジ時間 4,655 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 43 ms
54,528 KB
testcase_01 AC 43 ms
54,528 KB
testcase_02 AC 43 ms
54,656 KB
testcase_03 AC 44 ms
54,784 KB
testcase_04 AC 101 ms
80,000 KB
testcase_05 AC 96 ms
80,128 KB
testcase_06 AC 95 ms
80,384 KB
testcase_07 AC 93 ms
79,488 KB
testcase_08 AC 96 ms
80,000 KB
testcase_09 AC 104 ms
80,000 KB
testcase_10 AC 75 ms
72,448 KB
testcase_11 AC 111 ms
79,976 KB
testcase_12 AC 108 ms
80,136 KB
testcase_13 AC 73 ms
72,064 KB
testcase_14 AC 118 ms
80,500 KB
testcase_15 AC 81 ms
73,856 KB
testcase_16 AC 104 ms
79,968 KB
testcase_17 AC 95 ms
80,128 KB
testcase_18 AC 119 ms
80,348 KB
testcase_19 AC 110 ms
80,128 KB
testcase_20 AC 106 ms
80,132 KB
testcase_21 AC 96 ms
80,480 KB
testcase_22 AC 105 ms
79,692 KB
testcase_23 AC 113 ms
80,292 KB
testcase_24 AC 83 ms
73,984 KB
testcase_25 AC 83 ms
74,240 KB
testcase_26 AC 110 ms
80,000 KB
testcase_27 AC 44 ms
54,528 KB
testcase_28 AC 132 ms
79,616 KB
testcase_29 AC 130 ms
79,532 KB
testcase_30 AC 140 ms
79,616 KB
testcase_31 AC 125 ms
79,616 KB
testcase_32 AC 47 ms
54,272 KB
testcase_33 AC 143 ms
79,616 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import sys
from collections import deque, Counter
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
from collections import deque
class mf_graph:
    n=1
    g=[[] for i in range(1)]
    pos=[]
    def __init__(self,N):
        self.n=N
        self.g=[[] for i in range(N)]
        self.pos=[]
    def add_edge(self,From,To,cap):
        assert 0<=From and From<self.n
        assert 0<=To and To<self.n
        assert 0<=cap
        m=len(self.pos)
        self.pos.append((From,len(self.g[From])))
        self.g[From].append({"to":To,"rev":len(self.g[To]),"cap":cap})
        self.g[To].append({"to":From,"rev":len(self.g[From])-1,"cap":0})
        return m
    def get_edge(self,i):
        m=len(self.pos)
        assert 0<=i and i<m
        _e=self.g[self.pos[i][0]][self.pos[i][1]]
        _re=self.g[_e["to"]][_e["rev"]]
        return {"from":self.pos[i][0],
                "to":_e["to"],
                "cap":_e["cap"]+_re["cap"],
                "flow":_re["cap"]}
    def edges(self):
        m=len(self.pos)
        result=[]
        for i in range(m):
            result.append(self.get_edge(i))
        return result
    def change_edge(self,i,new_cap,new_flow):
        m=len(self.pos)
        assert 0<=i and i<m
        assert 0<=new_flow and new_flow<=new_cap
        _e=self.g[self.pos[i][0]][self.pos[i][1]]
        _re=self.g[_e["to"]][_e["rev"]]
        _e["cap"]=new_cap-new_flow
        _re["cap"]=new_flow
    def flow(self,s,t,flow_limit=(1<<63)-1):
        assert 0<=s and s<self.n
        assert 0<=t and t<self.n
        level=[0 for i in range(self.n)]
        Iter=[0 for i in range(self.n)]
        que=deque([])
        def bfs():
            for i in range(self.n):level[i]=-1
            level[s]=0
            que=deque([])
            que.append(s)
            while(len(que)>0):
                v=que.popleft()
                for e in self.g[v]:
                    if e["cap"]==0 or level[e["to"]]>=0:continue
                    level[e["to"]]=level[v]+1
                    if e["to"]==t:return
                    que.append(e["to"])
        def dfs(func,v,up):
            if (v==s):return up
            res=0
            level_v=level[v]
            for i in range(Iter[v],len(self.g[v])):
                e=self.g[v][i]
                if (level_v<=level[e["to"]] or self.g[e["to"]][e["rev"]]["cap"]==0):continue
                d=func(func,e["to"],min(up-res,self.g[e["to"]][e["rev"]]["cap"]))
                if d<=0:continue
                self.g[v][i]["cap"]+=d
                self.g[e["to"]][e["rev"]]["cap"]-=d
                res+=d
                if res==up:return res
            level[v]=self.n
            return res
        flow=0
        while(flow<flow_limit):
            bfs()
            if level[t]==-1:break
            for i in range(self.n):Iter[i]=0
            while(flow<flow_limit):
                f=dfs(dfs,t,flow_limit-flow)
                if not(f):break
                flow+=f
        return flow
    def min_cut(self,s):
        visited=[False for i in range(self.n)]
        que=deque([])
        que.append(s)
        while(len(que)>0):
            p=que.popleft()
            visited[p]=True
            for e in self.g[p]:
                if e["cap"] and not(visited[e["to"]]):
                    visited[e["to"]]=True
                    que.append(e["to"])
        return visited

n, s, t = mi()

e = [v - 1 for v in li()]
r = [v - 1 for v in li()]

G = mf_graph(n + 3)

S = n
T = n + 1
W = n + 2


for i in range(n):
    if i in e:
        G.add_edge(S, i, inf)
    elif i in r:
        G.add_edge(i, T, inf)

c = [li() for _ in range(n)]
ans = 0
for i in range(n):
    for j in range(i + 1, n):
        ans += c[i][j]
        G.add_edge(i, j, c[i][j])
        G.add_edge(j, i, c[i][j])


f = G.flow(S, T)

print(ans - f)
        
0