結果

問題 No.3015 右に寄せろ!
ユーザー lif4635lif4635
提出日時 2025-01-25 12:59:37
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 161 ms / 2,000 ms
コード長 2,586 bytes
コンパイル時間 192 ms
コンパイル使用メモリ 82,408 KB
実行使用メモリ 137,112 KB
最終ジャッジ日時 2025-01-25 22:29:53
合計ジャッジ時間 3,606 ms
ジャッジサーバーID
(参考情報)
judge2 / judge7
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ファイルパターン 結果
other AC * 36
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ソースコード

diff #
プレゼンテーションモードにする

# input
import sys
input = sys.stdin.readline
II = lambda : int(input())
MI = lambda : map(int, input().split())
LI = lambda : list(map(int, input().split()))
SI = lambda : input().rstrip()
LLI = lambda n : [list(map(int, input().split())) for _ in range(n)]
LSI = lambda n : [input().rstrip() for _ in range(n)]
MI_1 = lambda : map(lambda x:int(x)-1, input().split())
LI_1 = lambda : list(map(lambda x:int(x)-1, input().split()))
def graph(n:int, m:int, dir:bool=False, index:int=-1) -> list[set[int]]:
edge = [set() for i in range(n+1+index)]
for _ in range(m):
a,b = map(int, input().split())
a += index
b += index
edge[a].add(b)
if not dir:
edge[b].add(a)
return edge
def graph_w(n:int, m:int, dir:bool=False, index:int=-1) -> list[set[tuple]]:
edge = [set() for i in range(n+1+index)]
for _ in range(m):
a,b,c = map(int, input().split())
a += index
b += index
edge[a].add((b,c))
if not dir:
edge[b].add((a,c))
return edge
mod = 998244353
inf = 1001001001001001001
ordalp = lambda s : ord(s)-65 if s.isupper() else ord(s)-97
ordallalp = lambda s : ord(s)-39 if s.isupper() else ord(s)-97
yes = lambda : print("Yes")
no = lambda : print("No")
yn = lambda flag : print("Yes" if flag else "No")
def acc(a:list[int]):
sa = [0]*(len(a)+1)
for i in range(len(a)):
sa[i+1] = a[i] + sa[i]
return sa
prinf = lambda ans : print(ans if ans < 1000001001001001001 else -1)
alplow = "abcdefghijklmnopqrstuvwxyz"
alpup = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
alpall = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
URDL = {'U':(-1,0), 'R':(0,1), 'D':(1,0), 'L':(0,-1)}
DIR_4 = [[-1,0],[0,1],[1,0],[0,-1]]
DIR_8 = [[-1,0],[-1,1],[0,1],[1,1],[1,0],[1,-1],[0,-1],[-1,-1]]
DIR_BISHOP = [[-1,1],[1,1],[1,-1],[-1,-1]]
prime60 = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59]
# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
# sys.setrecursionlimit(10**7)
# sys.set_int_max_str_digits(0)
from heapq import heappop,heappush,heapify
def run_length_encode(s):
encoded = []
n = len(s)
i = 0
while i < n:
current_char = s[i]
count = 0
while i < n and s[i] == current_char:
count += 1
i += 1
encoded.append([int(current_char), count])
return encoded
s = list(map(int,SI()))
n = len(s)
ans = 0
c0 = 0
c1 = 0
for i in reversed(range(n)):
if s[i] == 0:
ans += (c1//2)*c0
c1 = 0
c0 += 1
else:
c1 += 1
print(ans + (c1//2)*c0)
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