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from collections import defaultdict | |
from itertools import combinations_with_replacement, permutations | |
import heapq | |
import math | |
# 대기열에 n명의 상담원이 있을 때, wait time 총량 계산 | |
def waiting_time(waitings, n): | |
total_time = 0 | |
counsel_list = [] | |
for _ in range(n): |
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import math | |
def solution(target): | |
# dp 문제. | |
# dp[i][0] = i점을 맞출 때 던질 수 있는 최소한의 다트 수 | |
# dp[i][1] = 그때 싱글 / 불 맞춘 횟수 | |
dp = [[math.inf, 0] for _ in range(target+1)] | |
dp[0][0] = 0 | |
for i in range(1, target+1): | |
# 20까지를 기준으로 | |
for j in range(1, 21): |
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from collections import deque, defaultdict | |
def bfs(nodes, start, end, visited, tables): | |
visited.add(start) | |
queue = deque([(start, 0)]) | |
while queue: | |
node, cnt = queue.popleft() | |
if node in end: | |
tables[node] = cnt | |
for _next in nodes[node]: |
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from collections import deque | |
def check(cards, candidates, target): | |
for card in cards: | |
# 새로 들어온 카드를 써서 낼 수 있는 경우 | |
if target - card in candidates: | |
candidates.remove(target-card) | |
cards.remove(card) | |
return True | |
return False |
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from collections import deque | |
def bfs(maps, start, end): | |
visited = set() | |
visited.add(start) | |
dirs = [(0,1),(0,-1),(1,0),(-1,0)] | |
queue = deque([start]) | |
while queue: | |
y, x, cnt = queue.popleft() | |
if maps[y][x] == end: |
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def solution(targets): | |
targets = sorted(targets, key=(lambda x: (x[0], x[1]))) | |
# 겹치는 구간을 최대한 찾되, 더 이상 겹치는 구간이 없어지면 포를 쏴야만 한다. | |
start, end = targets[0][0], targets[0][1] | |
answer = 1 | |
for idx in range(1, len(targets)): | |
# 겹치는 범위가 없다면, answer ++ 한 뒤 start, end 초기화한다 | |
if end <= targets[idx][0]: | |
answer += 1 | |
start, end = targets[idx][0], targets[idx][1] |
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import sys | |
from collections import defaultdict | |
sys.setrecursionlimit(10 ** 6) | |
def solution(nodes, edges): | |
# root가 짝수 = root가 아니면 역짝수 | |
# root가 홀수 = root가 아니면 역홀수 | |
# root가 역짝수 = root가 아니면 짝수 | |
# root가 역홀수 = root가 아니면 홀수 | |
# 홀짝 트리 => root만 홀짝이고, 나머지는 전부 역홀짝이어야 한다. |
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import math | |
def solution(n, bans): | |
# 26 기준으로 | |
# 1 ~ 26 = 1글자 'a'~ => n // 26 = 0인 것 | |
# 26+1 ~ 26*2 = 2글자 'aa' ~ n // 26 = 1인 것 | |
# 26*2+1 ~ 26*3 = 2글자 'ba' ~ | |
# 26*25 ~ 26*26 = 2글자 끝 | |
# 26*26+1 ~ ... 3글자 'aaa'... | |
# 26진수? |
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#!/bin/python3 | |
import math | |
import os | |
import random | |
import re | |
import sys | |
# | |
# Complete the 'organizingContainers' function below. |
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#!/bin/python3 | |
import math | |
import os | |
import random | |
import re | |
import sys | |
# | |
# Complete the 'pairs' function below. |
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