Submission #8532846

Source Code Expand

N = int(input())
A = [int(input()) for _ in range(N)]

if A[0] != 0:
  print(-1)
  exit()
  
ans = []
l = 0
for i in range(1, N):
  if A[i] > A[i - 1] + 1:
    print(-1)
    exit()
    
  if A[i] == A[i - 1] + 1:
    l = A[i]
  else:
    ans.append(l)
    l = A[i]
ans.append(l)
print(sum(ans))

Submission Info

Submission Time
Task C - Sequence Growing Easy
User hiraku
Language Python (3.4.3)
Score 700
Code Size 314 Byte
Status AC
Exec Time 428 ms
Memory 12456 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 700 / 700
Status
AC × 3
AC × 49
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 320 ms 11032 KB
02.txt AC 307 ms 11040 KB
03.txt AC 321 ms 11008 KB
04.txt AC 304 ms 11032 KB
05.txt AC 304 ms 10916 KB
06.txt AC 304 ms 10916 KB
07.txt AC 420 ms 11792 KB
08.txt AC 414 ms 11812 KB
09.txt AC 403 ms 11812 KB
10.txt AC 399 ms 11792 KB
11.txt AC 324 ms 10916 KB
12.txt AC 327 ms 10916 KB
13.txt AC 308 ms 10896 KB
14.txt AC 298 ms 10896 KB
15.txt AC 407 ms 11800 KB
16.txt AC 421 ms 11800 KB
17.txt AC 401 ms 11800 KB
18.txt AC 399 ms 11812 KB
19.txt AC 395 ms 11024 KB
20.txt AC 387 ms 11048 KB
21.txt AC 424 ms 8856 KB
22.txt AC 396 ms 7960 KB
23.txt AC 382 ms 8868 KB
24.txt AC 406 ms 7296 KB
25.txt AC 418 ms 11048 KB
26.txt AC 410 ms 11048 KB
27.txt AC 392 ms 11048 KB
28.txt AC 392 ms 11040 KB
29.txt AC 385 ms 11024 KB
30.txt AC 402 ms 11028 KB
31.txt AC 304 ms 11044 KB
32.txt AC 321 ms 11044 KB
33.txt AC 408 ms 6292 KB
34.txt AC 392 ms 8612 KB
35.txt AC 399 ms 11812 KB
36.txt AC 409 ms 11792 KB
37.txt AC 422 ms 12456 KB
38.txt AC 428 ms 12432 KB
39.txt AC 393 ms 11304 KB
40.txt AC 406 ms 11048 KB
41.txt AC 17 ms 3064 KB
42.txt AC 17 ms 3064 KB
43.txt AC 17 ms 3064 KB
44.txt AC 17 ms 3064 KB
45.txt AC 17 ms 3064 KB
46.txt AC 17 ms 3064 KB
s1.txt AC 17 ms 3064 KB
s2.txt AC 17 ms 3064 KB
s3.txt AC 17 ms 3064 KB