結果

問題 No.3013 ハチマキ買い星人
ユーザー uuuus17
提出日時 2025-01-25 13:09:23
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 2,506 bytes
コンパイル時間 329 ms
コンパイル使用メモリ 82,360 KB
実行使用メモリ 102,000 KB
最終ジャッジ日時 2025-01-25 22:35:02
合計ジャッジ時間 13,402 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge10
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 31 WA * 14
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
input = lambda: sys.stdin.readline().rstrip()
# sys.setrecursionlimit(10**7)
# sys.set_int_max_str_digits(10**6)
# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
def mp():return map(int,input().split())
def lmp():return list(map(int,input().split()))
def lm1(LIST): return list(map(lambda x:x-1, LIST))
def mps(A):return [tuple(map(int, input().split())) for _ in range(A)]
def stoi(LIST):return list(map(int,LIST))
def itos(LIST):return list(map(str,LIST))
def atoi(LIST): return [ord(i)-ord("a") for i in LIST]
def Atoi(LIST): return [ord(i)-ord("A") for i in LIST]
def LT(LIST,N): return LIST[bisect.bisect_left(LIST,N)-1]
def LE(LIST,N): return LIST[bisect.bisect_right(LIST,N)-1]
def GT(LIST,N): return LIST[bisect.bisect_right(LIST,N)]
def GE(LIST,N): return LIST[bisect.bisect_left(LIST,N)]
def bitA(X,A):return X & 1<<A == 1<<A
def gtoi(x,y,h,w):return x*w+y
import math
import bisect
import heapq
import time
import random as rd
import itertools
from copy import copy as cc
from copy import deepcopy as dc
from itertools import accumulate, product
from collections import Counter, defaultdict, deque
# from atcoder.dsu import DSU
# from atcoder.fenwicktree import FenwickTree
# from atcoder.segtree import SegTree  # (op, ide_ele, LIST)
# from atcoder.lazysegtree import LazySegTree  # (op, ide_ele, mapping, composition, _id, lst)
def ceil(U,V):return (U+V-1)//V
def modf1(N,MOD):return (N-1)%MOD+1
def pmat(list):
    for i in list:print(*i)
m4 = [[1,0],[0,1],[-1,0],[0,-1]]
m8 = [[-1,-1],[-1,0],[-1,1],[0,-1],[0,1],[1,-1],[1,0],[1,1]]
inf = (1<<63)-1
mod = 998244353

# ok = 0
# ng = 10**9+1
# while (ok-ng) != 1:
#     m = (ok+ng)//2
#     print(m)
#     sys.stdout.flush()
#     ans = int(input())
#     if ans == 1:
#         exit()
#     elif ans == 0:
#         ng = m

import heapq
def dijkstra(start,edge):
    # edge[i] = [(distance, j), ...]
    dist = [inf]*len(edge)
    dist[start] = 0
    q = [(0, start)]
    while q:
        # u から　v　に辺を張る
        cost, u = heapq.heappop(q)
        if dist[u] < cost:continue
        for ncost, v in edge[u]:
            if (dist[u]+ncost) < dist[v]:
                dist[v] = dist[u]+ncost
                heapq.heappush(q, (dist[v], v))
    return dist

n,m,p,y = mp()
edge = [[] for i in range(n)]
for i in range(m):
    a,b,c = mp()
    a -= 1
    b -= 1
    edge[a].append((c,b))
D = dijkstra(0,edge)
ans = 0
for i in range(p):
    d,e = mp()
    d -= 1
    ans = max(ans,(y-D[d])//e)
print(ans)
0