結果
問題 | No.2709 1975 Powers |
ユーザー |
![]() |
提出日時 | 2024-03-31 14:03:12 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,915 bytes |
コンパイル時間 | 8,494 ms |
コンパイル使用メモリ | 252,008 KB |
最終ジャッジ日時 | 2025-02-20 16:51:53 |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 9 WA * 16 |
ソースコード
#include<bits/stdc++.h>#include<atcoder/all>using namespace std;using int64 = long long;const int64 infll = (1LL << 62) - 1;const int inf = (1 << 30) - 1;struct IoSetup {IoSetup() {cin.tie(nullptr);ios::sync_with_stdio(false);cout << fixed << setprecision(10);cerr << fixed << setprecision(10);}} iosetup;template< typename T1, typename T2 >ostream &operator<<(ostream &os, const pair< T1, T2 >& p) {os << p.first << " " << p.second;return os;}template< typename T1, typename T2 >istream &operator>>(istream &is, pair< T1, T2 > &p) {is >> p.first >> p.second;return is;}template< typename T >ostream &operator<<(ostream &os, const vector< T > &v) {for(int i = 0; i < (int) v.size(); i++) {os << v[i] << (i + 1 != v.size() ? " " : "");}return os;}template< typename T >istream &operator>>(istream &is, vector< T > &v) {for(T &in : v) is >> in;return is;}template< typename T1, typename T2 >inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }template< typename T1, typename T2 >inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }template< typename T = int64 >vector< T > make_v(size_t a) {return vector< T >(a);}template< typename T, typename... Ts >auto make_v(size_t a, Ts... ts) {return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));}template< typename T, typename V >typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {t = v;}template< typename T, typename V >typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {for(auto &e : t) fill_v(e, v);}template< typename F >struct FixPoint : F {explicit FixPoint(F &&f) : F(forward< F >(f)) {}template< typename... Args >decltype(auto) operator()(Args &&... args) const {return F::operator()(*this, forward< Args >(args)...);}};template< typename F >inline decltype(auto) MFP(F &&f) {return FixPoint< F >{forward< F >(f)};}#line 1 "math/combinatorics/mod-pow.hpp"/*** @brief Mod Pow(べき乗)* @docs docs/mod-pow.md*/template< typename T >T mod_pow(T x, int64_t n, const T &p) {T ret = 1;while(n > 0) {if(n & 1) (ret *= x) %= p;(x *= x) %= p;n >>= 1;}return ret % p;}int main() {int N, P, Q;cin >> N >> P >> Q;vector< int64 > A(N);cin >> A;auto mat = make_v< int >(4, N);vector< int > vs{10, 9, 7, 5};for(int i = 0; i < 4; i++) {for(int j = 0; j < N; j++) {mat[i][j] = mod_pow< int64 >(vs[i], A[j], P);}}int ret = 0;for(int a = 0; a < N; a++) {for(int b = a + 1; b < N; b++) {for(int c = b + 1; c < N; c++) {for(int d = c + 1; d < N; d++) {int s = mat[0][a] + mat[1][b] + mat[2][c] + mat[3][d];while(s >= P) s -= P;ret += s == Q;}}}}cout << ret << endl;}