Submission #855281


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#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)
#define all(c) c.begin(),c.end()
#define pb push_back
#define fs first
#define sc second
#define show(x) cout << #x << " = " << x << endl
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
using namespace std;
template<class S,class T> ostream& operator<<(ostream& o,const pair<S,T> &p){return o<<"("<<p.fs<<","<<p.sc<<")";}
template<class T> ostream& operator<<(ostream& o,const vector<T> &vc){o<<"sz = "<<vc.size()<<endl<<"[";for(const T& v:vc) o<<v<<",";o<<"]";return o;}
typedef long long ll;
int main(){
	ll N,s;
	cin>>N>>s;
	for(ll b=2;b<=1000000;b++){
		ll x=0;
		ll tmp=N;
		while(tmp){
			x+=tmp%b;
			tmp/=b;
		}
		if(x==s){
			cout<<b<<endl;
			return 0;
		}
	}
	ll ans=1e18;
	for(ll q=1;q<=1000000;q++){
		ll r=s-q;
		if(r<0) break;
		if(N-r<0) continue;
		if((N-r)%q>0) continue;
		ll b=(N-r)/q;
		if(b<=r) continue;
		chmin(ans,b);
	}
	if(ans==1e18) ans=-1;
	cout<<ans<<endl;
}

Submission Info

Submission Time
Task D - Digit Sum
User sigma425
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1060 Byte
Status WA
Exec Time 63 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 5
AC × 46
WA × 1
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 4 ms 256 KB
subtask1_100000000000_100000000000.txt WA 63 ms 256 KB
subtask1_100000000000_2.txt AC 45 ms 256 KB
subtask1_100000000000_3.txt AC 45 ms 256 KB
subtask1_100000000000_50000000000.txt AC 63 ms 256 KB
subtask1_100000000000_50000000001.txt AC 63 ms 256 KB
subtask1_100000000000_99999999999.txt AC 62 ms 256 KB
subtask1_16983563041_1.txt AC 4 ms 256 KB
subtask1_1_1.txt AC 4 ms 256 KB
subtask1_1_2.txt AC 22 ms 256 KB
subtask1_1_31415926535.txt AC 23 ms 256 KB
subtask1_239484768_194586924.txt AC 56 ms 256 KB
subtask1_2_1.txt AC 4 ms 256 KB
subtask1_2_2.txt AC 4 ms 256 KB
subtask1_31415926535_1.txt AC 41 ms 256 KB
subtask1_49234683534_2461734011.txt AC 60 ms 256 KB
subtask1_4_1.txt AC 4 ms 256 KB
subtask1_58640129658_232122496.txt AC 61 ms 256 KB
subtask1_68719476735_35.txt AC 11 ms 256 KB
subtask1_68719476735_36.txt AC 4 ms 256 KB
subtask1_68719476735_37.txt AC 43 ms 256 KB
subtask1_68719476736_1.txt AC 4 ms 256 KB
subtask1_68719476736_2.txt AC 4 ms 256 KB
subtask1_72850192441_16865701.txt AC 62 ms 256 KB
subtask1_79285169301_27.txt AC 4 ms 256 KB
subtask1_82914867733_1676425945.txt AC 62 ms 256 KB
subtask1_8594813796_75700.txt AC 7 ms 256 KB
subtask1_87654_12345.txt AC 5 ms 256 KB
subtask1_87654_138.txt AC 4 ms 256 KB
subtask1_87654_30.txt AC 4 ms 256 KB
subtask1_87654_4294967308.txt AC 25 ms 256 KB
subtask1_87654_45678.txt AC 24 ms 256 KB
subtask1_97822032312_49157112.txt AC 62 ms 256 KB
subtask1_98750604051_977728851.txt AC 63 ms 256 KB
subtask1_99999515529_1.txt AC 21 ms 256 KB
subtask1_99999515529_316226.txt AC 50 ms 256 KB
subtask1_99999515529_316227.txt AC 22 ms 256 KB
subtask1_99999515529_316228.txt AC 27 ms 256 KB
subtask1_99999515529_49999757765.txt AC 62 ms 256 KB
subtask1_99999515529_49999757766.txt AC 62 ms 256 KB
subtask1_99999515530_2.txt AC 22 ms 256 KB
subtask1_99999999977_1.txt AC 45 ms 256 KB
subtask1_99999999977_2.txt AC 45 ms 256 KB
subtask1_99999999977_49999999989.txt AC 63 ms 256 KB
subtask1_99999999977_49999999990.txt AC 63 ms 256 KB
subtask1_99999999999_1.txt AC 45 ms 256 KB
subtask1_99999999999_100000000000.txt AC 62 ms 256 KB