Submission #857040


Source Code Expand

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#include <bits/stdc++.h>
using namespace std;

typedef long long int ll;

int main() {
    ll N, S;
    cin >> N >> S;

    if (N == S) {
        cout << 1 << endl;
        return 0;
    }

    if (N < S) {
        cout << -1 << endl;
        return 0;
    }

    if (S == 1) {
        cout << N << endl;

        return 0;
    }

    for (ll i = 2LL; i <= sqrt(N); i++) {
        if (((double)N / (double)i) - (double)(N / i) == 0.) continue;
        ll sum = 0LL;
        auto s = N;
        while (s) {
            sum += s % i;
            s /= i;
            if (sum + s < S) {
                break;
            }

            if (sum > S) {
                break;
            }
        }

        if (sum == S) {
            cout << i << endl;
            return 0;
        }
    }

    cout << -1 << endl;

    return 0;
}

Submission Info

Submission Time
Task D - Digit Sum
User wanimaru47
Language C++14 (GCC 5.4.1)
Score 0
Code Size 882 Byte
Status WA
Exec Time 23 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 5
AC × 20
WA × 27
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 WA 4 ms 256 KB
subtask1_100000000000_100000000000.txt WA 4 ms 256 KB
subtask1_100000000000_2.txt WA 17 ms 256 KB
subtask1_100000000000_3.txt WA 17 ms 256 KB
subtask1_100000000000_50000000000.txt WA 17 ms 256 KB
subtask1_100000000000_50000000001.txt AC 18 ms 256 KB
subtask1_100000000000_99999999999.txt AC 17 ms 256 KB
subtask1_16983563041_1.txt WA 4 ms 256 KB
subtask1_1_1.txt WA 4 ms 256 KB
subtask1_1_2.txt AC 4 ms 256 KB
subtask1_1_31415926535.txt AC 4 ms 256 KB
subtask1_239484768_194586924.txt AC 5 ms 256 KB
subtask1_2_1.txt AC 4 ms 256 KB
subtask1_2_2.txt WA 4 ms 256 KB
subtask1_31415926535_1.txt AC 4 ms 256 KB
subtask1_49234683534_2461734011.txt WA 13 ms 256 KB
subtask1_4_1.txt WA 4 ms 256 KB
subtask1_58640129658_232122496.txt WA 14 ms 256 KB
subtask1_68719476735_35.txt AC 10 ms 256 KB
subtask1_68719476735_36.txt AC 4 ms 256 KB
subtask1_68719476735_37.txt WA 15 ms 256 KB
subtask1_68719476736_1.txt WA 4 ms 256 KB
subtask1_68719476736_2.txt WA 16 ms 256 KB
subtask1_72850192441_16865701.txt WA 15 ms 256 KB
subtask1_79285169301_27.txt WA 4 ms 256 KB
subtask1_82914867733_1676425945.txt WA 16 ms 256 KB
subtask1_8594813796_75700.txt AC 7 ms 256 KB
subtask1_87654_12345.txt WA 4 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 4 ms 256 KB
subtask1_87654_45678.txt AC 4 ms 256 KB
subtask1_97822032312_49157112.txt WA 17 ms 256 KB
subtask1_98750604051_977728851.txt WA 17 ms 256 KB
subtask1_99999515529_1.txt WA 4 ms 256 KB
subtask1_99999515529_316226.txt WA 23 ms 256 KB
subtask1_99999515529_316227.txt WA 23 ms 256 KB
subtask1_99999515529_316228.txt WA 23 ms 256 KB
subtask1_99999515529_49999757765.txt WA 17 ms 256 KB
subtask1_99999515529_49999757766.txt AC 17 ms 256 KB
subtask1_99999515530_2.txt AC 18 ms 256 KB
subtask1_99999999977_1.txt AC 4 ms 256 KB
subtask1_99999999977_2.txt WA 17 ms 256 KB
subtask1_99999999977_49999999989.txt WA 17 ms 256 KB
subtask1_99999999977_49999999990.txt AC 17 ms 256 KB
subtask1_99999999999_1.txt AC 4 ms 256 KB
subtask1_99999999999_100000000000.txt AC 4 ms 256 KB