Submission #858782


Source Code Expand

Copy
import sys
sys.setrecursionlimit(10**9)

def divisor(x):
    div=[]
    for i in xrange(1,int(x**0.5)+1):
        if x%i==0:
            div.append(i)
            if i!=x/i:
                div.append(x/i)
    return div

def f(b,n):
    if n<b:
        return n
    else:
        return f(b,n/b)+n%b

n=int(raw_input())
s=int(raw_input())

if n==s:
    print(n+1)
    quit()

if n<s:
    print(-1)
    quit()
    
if n<=10**6:
    for i in xrange(2,n+2):
        if f(i,n)==s:
            print(i)
            quit()
    print(-1)
else:
    for i in xrange(2,10**6+1):
        if f(i,n)==s:
            print(i)
            quit()
            
    div=divisor(n-s)
    for i in div:
        if i>=10**6:
            if f(i+1,n)==s:
                print(i+1)
                quit()
    print(-1)

Submission Info

Submission Time
Task D - Digit Sum
User yugamiakira
Language PyPy2 (5.6.0)
Score 0
Code Size 843 Byte
Status WA
Exec Time 281 ms
Memory 21612 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 5
AC × 39
WA × 8
Set Name Test Cases
Sample subtask1_87654_30.txt, subtask1_87654_138.txt, subtask1_87654_45678.txt, subtask1_31415926535_1.txt, subtask1_1_31415926535.txt
All subtask1_100000000000_1.txt, subtask1_100000000000_100000000000.txt, subtask1_100000000000_2.txt, subtask1_100000000000_3.txt, subtask1_100000000000_50000000000.txt, subtask1_100000000000_50000000001.txt, subtask1_100000000000_99999999999.txt, subtask1_16983563041_1.txt, subtask1_1_1.txt, subtask1_1_2.txt, subtask1_1_31415926535.txt, subtask1_239484768_194586924.txt, subtask1_2_1.txt, subtask1_2_2.txt, subtask1_31415926535_1.txt, subtask1_49234683534_2461734011.txt, subtask1_4_1.txt, subtask1_58640129658_232122496.txt, subtask1_68719476735_35.txt, subtask1_68719476735_36.txt, subtask1_68719476735_37.txt, subtask1_68719476736_1.txt, subtask1_68719476736_2.txt, subtask1_72850192441_16865701.txt, subtask1_79285169301_27.txt, subtask1_82914867733_1676425945.txt, subtask1_8594813796_75700.txt, subtask1_87654_12345.txt, subtask1_87654_138.txt, subtask1_87654_30.txt, subtask1_87654_4294967308.txt, subtask1_87654_45678.txt, subtask1_97822032312_49157112.txt, subtask1_98750604051_977728851.txt, subtask1_99999515529_1.txt, subtask1_99999515529_316226.txt, subtask1_99999515529_316227.txt, subtask1_99999515529_316228.txt, subtask1_99999515529_49999757765.txt, subtask1_99999515529_49999757766.txt, subtask1_99999515530_2.txt, subtask1_99999999977_1.txt, subtask1_99999999977_2.txt, subtask1_99999999977_49999999989.txt, subtask1_99999999977_49999999990.txt, subtask1_99999999999_1.txt, subtask1_99999999999_100000000000.txt
Case Name Status Exec Time Memory
subtask1_100000000000_1.txt AC 64 ms 9072 KB
subtask1_100000000000_100000000000.txt AC 62 ms 8944 KB
subtask1_100000000000_2.txt WA 281 ms 21612 KB
subtask1_100000000000_3.txt AC 238 ms 19180 KB
subtask1_100000000000_50000000000.txt AC 233 ms 19180 KB
subtask1_100000000000_50000000001.txt AC 234 ms 19180 KB
subtask1_100000000000_99999999999.txt AC 225 ms 19180 KB
subtask1_16983563041_1.txt AC 63 ms 8944 KB
subtask1_1_1.txt AC 63 ms 8944 KB
subtask1_1_2.txt AC 64 ms 8944 KB
subtask1_1_31415926535.txt AC 61 ms 8944 KB
subtask1_239484768_194586924.txt AC 189 ms 17132 KB
subtask1_2_1.txt AC 65 ms 8944 KB
subtask1_2_2.txt AC 62 ms 8944 KB
subtask1_31415926535_1.txt AC 217 ms 18668 KB
subtask1_49234683534_2461734011.txt AC 223 ms 19308 KB
subtask1_4_1.txt AC 62 ms 8944 KB
subtask1_58640129658_232122496.txt WA 224 ms 18668 KB
subtask1_68719476735_35.txt AC 109 ms 11760 KB
subtask1_68719476735_36.txt AC 62 ms 8944 KB
subtask1_68719476735_37.txt WA 228 ms 18796 KB
subtask1_68719476736_1.txt AC 63 ms 8944 KB
subtask1_68719476736_2.txt AC 62 ms 8944 KB
subtask1_72850192441_16865701.txt WA 225 ms 18796 KB
subtask1_79285169301_27.txt AC 63 ms 8944 KB
subtask1_82914867733_1676425945.txt WA 228 ms 18796 KB
subtask1_8594813796_75700.txt AC 97 ms 11632 KB
subtask1_87654_12345.txt AC 72 ms 9456 KB
subtask1_87654_138.txt AC 64 ms 8944 KB
subtask1_87654_30.txt AC 62 ms 8944 KB
subtask1_87654_4294967308.txt AC 63 ms 8944 KB
subtask1_87654_45678.txt AC 74 ms 9456 KB
subtask1_97822032312_49157112.txt WA 236 ms 19308 KB
subtask1_98750604051_977728851.txt WA 236 ms 18796 KB
subtask1_99999515529_1.txt AC 152 ms 13680 KB
subtask1_99999515529_316226.txt WA 236 ms 19308 KB
subtask1_99999515529_316227.txt AC 142 ms 13808 KB
subtask1_99999515529_316228.txt AC 161 ms 14448 KB
subtask1_99999515529_49999757765.txt AC 232 ms 19308 KB
subtask1_99999515529_49999757766.txt AC 231 ms 19308 KB
subtask1_99999515530_2.txt AC 141 ms 13680 KB
subtask1_99999999977_1.txt AC 233 ms 19308 KB
subtask1_99999999977_2.txt AC 236 ms 19308 KB
subtask1_99999999977_49999999989.txt AC 235 ms 19308 KB
subtask1_99999999977_49999999990.txt AC 233 ms 19308 KB
subtask1_99999999999_1.txt AC 234 ms 19308 KB
subtask1_99999999999_100000000000.txt AC 62 ms 8944 KB