Submission #6502652
Source Code Expand
#include <cstdio> #include <cmath> #define ll long long using namespace std; long long n, s; inline bool is_jz(ll x, int b) { ll sum = 0; while (x) sum += x % b, x /= b; return sum == s; } int main() { scanf("%lld %lld", &n, &s); if(n == s) { printf("1"); return 0; } int sqr = sqrt(n); for (ll i = 2; i <= sqr; ++i) if (is_jz(n, i)) { printf("%lld", i); return 0; } for (ll i = sqr; (n - s) / i + 1 > i; --i) if ((n - s) % i == 0) { printf("%lld", (n - s) / i + 1); return 0; } printf("-1"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Digit Sum |
User | luogu_bot5 |
Language | C++ (GCC 5.4.1) |
Score | 0 |
Code Size | 579 Byte |
Status | WA |
Exec Time | 14 ms |
Memory | 128 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:16:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld", &n, &s); ^
Judge Result
Set Name | Sample | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 500 | ||||||||
Status |
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Set Name | Test Cases |
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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 | 1 ms | 128 KB |
subtask1_100000000000_100000000000.txt | WA | 1 ms | 128 KB |
subtask1_100000000000_2.txt | WA | 14 ms | 128 KB |
subtask1_100000000000_3.txt | WA | 14 ms | 128 KB |
subtask1_100000000000_50000000000.txt | WA | 11 ms | 128 KB |
subtask1_100000000000_50000000001.txt | AC | 11 ms | 128 KB |
subtask1_100000000000_99999999999.txt | AC | 11 ms | 128 KB |
subtask1_16983563041_1.txt | AC | 1 ms | 128 KB |
subtask1_1_1.txt | WA | 1 ms | 128 KB |
subtask1_1_2.txt | AC | 1 ms | 128 KB |
subtask1_1_31415926535.txt | AC | 1 ms | 128 KB |
subtask1_239484768_194586924.txt | AC | 1 ms | 128 KB |
subtask1_2_1.txt | AC | 1 ms | 128 KB |
subtask1_2_2.txt | WA | 1 ms | 128 KB |
subtask1_31415926535_1.txt | WA | 8 ms | 128 KB |
subtask1_49234683534_2461734011.txt | WA | 8 ms | 128 KB |
subtask1_4_1.txt | AC | 1 ms | 128 KB |
subtask1_58640129658_232122496.txt | WA | 8 ms | 128 KB |
subtask1_68719476735_35.txt | AC | 5 ms | 128 KB |
subtask1_68719476735_36.txt | AC | 1 ms | 128 KB |
subtask1_68719476735_37.txt | WA | 10 ms | 128 KB |
subtask1_68719476736_1.txt | AC | 1 ms | 128 KB |
subtask1_68719476736_2.txt | AC | 1 ms | 128 KB |
subtask1_72850192441_16865701.txt | WA | 9 ms | 128 KB |
subtask1_79285169301_27.txt | AC | 1 ms | 128 KB |
subtask1_82914867733_1676425945.txt | WA | 10 ms | 128 KB |
subtask1_8594813796_75700.txt | AC | 2 ms | 128 KB |
subtask1_87654_12345.txt | WA | 1 ms | 128 KB |
subtask1_87654_138.txt | AC | 1 ms | 128 KB |
subtask1_87654_30.txt | AC | 1 ms | 128 KB |
subtask1_87654_4294967308.txt | AC | 1 ms | 128 KB |
subtask1_87654_45678.txt | AC | 1 ms | 128 KB |
subtask1_97822032312_49157112.txt | WA | 11 ms | 128 KB |
subtask1_98750604051_977728851.txt | WA | 11 ms | 128 KB |
subtask1_99999515529_1.txt | AC | 11 ms | 128 KB |
subtask1_99999515529_316226.txt | WA | 11 ms | 128 KB |
subtask1_99999515529_316227.txt | WA | 11 ms | 128 KB |
subtask1_99999515529_316228.txt | WA | 11 ms | 128 KB |
subtask1_99999515529_49999757765.txt | WA | 11 ms | 128 KB |
subtask1_99999515529_49999757766.txt | AC | 11 ms | 128 KB |
subtask1_99999515530_2.txt | AC | 11 ms | 128 KB |
subtask1_99999999977_1.txt | WA | 14 ms | 128 KB |
subtask1_99999999977_2.txt | WA | 14 ms | 128 KB |
subtask1_99999999977_49999999989.txt | WA | 11 ms | 128 KB |
subtask1_99999999977_49999999990.txt | AC | 11 ms | 128 KB |
subtask1_99999999999_1.txt | WA | 14 ms | 128 KB |
subtask1_99999999999_100000000000.txt | AC | 11 ms | 128 KB |