Submission #1499281


Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
#define repeat(i,n) for (int i = 0; (i) < int(n); ++(i))
#define whole(f,x,...) ([&](decltype((x)) whole) { return (f)(begin(whole), end(whole), ## __VA_ARGS__); })(x)
using ll = long long;
using namespace std;
int gcd(int a, int b) { while (a) { b %= a; swap(a, b); } return b; }
bool solve(int n, vector<int> & a) {
    ll sum = whole(accumulate, a, 0ll);
    bool is_first = (sum - n) % 2;
    int even = whole(count_if, a, [&](int ai) { return ai % 2 == 0; });
    auto odd = whole(find_if,  a, [&](int ai) { return ai % 2 == 1; });
    if (not is_first and even == n-1 and *odd != 1) {
        -- (*odd);
        int d = a[0]; repeat (i,n) d = gcd(d, a[i]);
        repeat (i,n) a[i] /= d;
        return not solve(n, a);
    } else {
        return is_first;
    }
}
int main() {
    int n; cin >> n;
    vector<int> a(n); repeat (i,n) cin >> a[i];
    cout << (solve(n, a) ? "First" : "Second") << endl;
    return 0;
}

Submission Info

Submission Time
Task D - Decrementing
User kimiyuki
Language C++14 (GCC 5.4.1)
Score 1000
Code Size 1032 Byte
Status AC
Exec Time 58 ms
Memory 768 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1000 / 1000
Status
AC × 3
AC × 43
Set Name Test Cases
Sample sample1.txt, sample2.txt, sample3.txt
All sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt
Case Name Status Exec Time Memory
in1.txt AC 40 ms 640 KB
in10.txt AC 40 ms 640 KB
in11.txt AC 46 ms 640 KB
in12.txt AC 40 ms 640 KB
in13.txt AC 44 ms 640 KB
in14.txt AC 55 ms 640 KB
in15.txt AC 43 ms 640 KB
in16.txt AC 54 ms 640 KB
in17.txt AC 43 ms 640 KB
in18.txt AC 58 ms 640 KB
in19.txt AC 42 ms 640 KB
in2.txt AC 40 ms 640 KB
in20.txt AC 53 ms 640 KB
in21.txt AC 48 ms 640 KB
in22.txt AC 48 ms 640 KB
in23.txt AC 47 ms 640 KB
in24.txt AC 48 ms 640 KB
in25.txt AC 44 ms 640 KB
in26.txt AC 47 ms 640 KB
in27.txt AC 45 ms 640 KB
in28.txt AC 48 ms 640 KB
in29.txt AC 44 ms 640 KB
in3.txt AC 40 ms 640 KB
in30.txt AC 47 ms 640 KB
in31.txt AC 40 ms 768 KB
in32.txt AC 40 ms 640 KB
in33.txt AC 45 ms 640 KB
in34.txt AC 48 ms 640 KB
in35.txt AC 46 ms 640 KB
in36.txt AC 1 ms 256 KB
in37.txt AC 1 ms 256 KB
in4.txt AC 40 ms 640 KB
in5.txt AC 40 ms 640 KB
in6.txt AC 40 ms 640 KB
in7.txt AC 41 ms 640 KB
in8.txt AC 40 ms 640 KB
in9.txt AC 40 ms 640 KB
sample1.txt AC 1 ms 256 KB
sample2.txt AC 1 ms 256 KB
sample3.txt AC 1 ms 256 KB