Submission #2738181
Source Code Expand
#include <cstdio> #include <iostream> #include <string> #include <vector> #include <sstream> #include <map> #include <set> #include <queue> #include <algorithm> #include <cmath> #include <cstdlib> #include <cstring> #include <typeinfo> #include <numeric> #include <functional> #include <unordered_map> #include <bitset> using namespace std; using ll = long long; using ull = unsigned long long; const ll INF = 1e16; const ll MOD = 1e9 + 7; #define REP(i, n) for(ll i = 0; i < n; i++) ll f(ll b, ll n){ if(n < b) return n; return f(b, n / b) + (n % b); } int main() { ll n, s; cin >> n >> s; if(s == n){ cout << n + 1 << endl; return 0; } for(ll b = 2; b <= sqrt(n) + 1; b++){ if(f(b, n) == s){ cout << b << endl; return 0; } } for(ll p = 1; p <= sqrt(n) + 1; p++){ ll b = (n - s) / p + 1; if(b < 2 || s - p < 0)continue; if(f(b, n) == s){ cout << b << endl; return 0; } } cout << -1 << endl; }
Submission Info
Submission Time | |
---|---|
Task | D - Digit Sum |
User | chocobo |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1140 Byte |
Status | WA |
Exec Time | 18 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 500 | ||||||
Status |
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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 | 1 ms | 256 KB |
subtask1_100000000000_100000000000.txt | AC | 1 ms | 256 KB |
subtask1_100000000000_2.txt | WA | 9 ms | 256 KB |
subtask1_100000000000_3.txt | AC | 9 ms | 256 KB |
subtask1_100000000000_50000000000.txt | AC | 9 ms | 256 KB |
subtask1_100000000000_50000000001.txt | AC | 18 ms | 256 KB |
subtask1_100000000000_99999999999.txt | AC | 13 ms | 256 KB |
subtask1_16983563041_1.txt | AC | 1 ms | 256 KB |
subtask1_1_1.txt | AC | 1 ms | 256 KB |
subtask1_1_2.txt | AC | 1 ms | 256 KB |
subtask1_1_31415926535.txt | AC | 1 ms | 256 KB |
subtask1_239484768_194586924.txt | AC | 2 ms | 256 KB |
subtask1_2_1.txt | AC | 1 ms | 256 KB |
subtask1_2_2.txt | AC | 1 ms | 256 KB |
subtask1_31415926535_1.txt | AC | 5 ms | 256 KB |
subtask1_49234683534_2461734011.txt | AC | 6 ms | 256 KB |
subtask1_4_1.txt | AC | 1 ms | 256 KB |
subtask1_58640129658_232122496.txt | WA | 7 ms | 256 KB |
subtask1_68719476735_35.txt | AC | 4 ms | 256 KB |
subtask1_68719476735_36.txt | AC | 1 ms | 256 KB |
subtask1_68719476735_37.txt | WA | 7 ms | 256 KB |
subtask1_68719476736_1.txt | AC | 1 ms | 256 KB |
subtask1_68719476736_2.txt | AC | 1 ms | 256 KB |
subtask1_72850192441_16865701.txt | WA | 8 ms | 256 KB |
subtask1_79285169301_27.txt | AC | 1 ms | 256 KB |
subtask1_82914867733_1676425945.txt | WA | 8 ms | 256 KB |
subtask1_8594813796_75700.txt | AC | 2 ms | 256 KB |
subtask1_87654_12345.txt | WA | 1 ms | 256 KB |
subtask1_87654_138.txt | AC | 1 ms | 256 KB |
subtask1_87654_30.txt | AC | 1 ms | 256 KB |
subtask1_87654_4294967308.txt | AC | 1 ms | 256 KB |
subtask1_87654_45678.txt | AC | 1 ms | 256 KB |
subtask1_97822032312_49157112.txt | WA | 9 ms | 256 KB |
subtask1_98750604051_977728851.txt | WA | 9 ms | 256 KB |
subtask1_99999515529_1.txt | AC | 9 ms | 256 KB |
subtask1_99999515529_316226.txt | WA | 9 ms | 256 KB |
subtask1_99999515529_316227.txt | AC | 9 ms | 256 KB |
subtask1_99999515529_316228.txt | WA | 9 ms | 256 KB |
subtask1_99999515529_49999757765.txt | AC | 9 ms | 256 KB |
subtask1_99999515529_49999757766.txt | AC | 18 ms | 256 KB |
subtask1_99999515530_2.txt | AC | 9 ms | 256 KB |
subtask1_99999999977_1.txt | AC | 9 ms | 256 KB |
subtask1_99999999977_2.txt | AC | 9 ms | 256 KB |
subtask1_99999999977_49999999989.txt | AC | 9 ms | 256 KB |
subtask1_99999999977_49999999990.txt | AC | 18 ms | 256 KB |
subtask1_99999999999_1.txt | AC | 9 ms | 256 KB |
subtask1_99999999999_100000000000.txt | AC | 13 ms | 256 KB |