AtCoder Grand Contest 019

Submission #1540304

Source codeソースコード

import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools

sys.setrecursionlimit(10**7)
inf = 10**20
gosa = 1.0 / 10**10
mod = 10**9 + 7

def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x)-1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def F(): return float(sys.stdin.readline())
def S(): return input()


def main():
    s = S()
    l = len(s)
    c = collections.Counter(s)
    r = l*(l-1) // 2 + 1
    for v in c.values():
        r -= v*(v-1) // 2

    return r

print(main())

Submission

Task問題 B - Reverse and Compare
User nameユーザ名 iehn
Created time投稿日時
Language言語 Python3 (3.4.3)
Status状態 AC
Score得点 500
Source lengthソースコード長 743 Byte
File nameファイル名
Exec time実行時間 222 ms
Memory usageメモリ使用量 7752 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - sample_01.txt,sample_02.txt,sample_03.txt
All 500 / 500 sample_01.txt,sample_02.txt,sample_03.txt,sample_01.txt,sample_02.txt,sample_03.txt,subtask_1_01.txt,subtask_1_02.txt,subtask_1_03.txt,subtask_1_04.txt,subtask_1_05.txt,subtask_1_06.txt,subtask_1_07.txt,subtask_1_08.txt,subtask_1_09.txt,subtask_1_10.txt,subtask_1_11.txt,subtask_1_12.txt,subtask_1_13.txt,subtask_1_14.txt,subtask_1_15.txt,subtask_1_16.txt,subtask_1_17.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
sample_01.txt AC 222 ms 7752 KB
sample_02.txt AC 40 ms 5332 KB
sample_03.txt AC 41 ms 5332 KB
subtask_1_01.txt AC 41 ms 5328 KB
subtask_1_02.txt AC 49 ms 5840 KB
subtask_1_03.txt AC 41 ms 5332 KB
subtask_1_04.txt AC 41 ms 5332 KB
subtask_1_05.txt AC 41 ms 5328 KB
subtask_1_06.txt AC 41 ms 5332 KB
subtask_1_07.txt AC 41 ms 5456 KB
subtask_1_08.txt AC 50 ms 5716 KB
subtask_1_09.txt AC 51 ms 5844 KB
subtask_1_10.txt AC 50 ms 5720 KB
subtask_1_11.txt AC 51 ms 5840 KB
subtask_1_12.txt AC 50 ms 5840 KB
subtask_1_13.txt AC 51 ms 5716 KB
subtask_1_14.txt AC 50 ms 5844 KB
subtask_1_15.txt AC 51 ms 5844 KB
subtask_1_16.txt AC 50 ms 5840 KB
subtask_1_17.txt AC 51 ms 5844 KB