結果
問題 | No.2479 Sum of Squares |
ユーザー | Slephy |
提出日時 | 2023-09-27 17:50:49 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,806 bytes |
コンパイル時間 | 2,092 ms |
コンパイル使用メモリ | 204,796 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-07-20 12:14:00 |
合計ジャッジ時間 | 3,214 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,948 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | AC | 2 ms
6,944 KB |
testcase_24 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; constexpr int INF = (int)1e9 + 1001010; constexpr ll llINF = (ll)4e18 + 22000020; const string endn = "\n"; template <class T> inline auto vector2(size_t i, size_t j, const T &init = T()) {return vector(i, vector<T>(j, init));} const string ELEM_SEPARATION = " ", VEC_SEPARATION = endn; template<class T> istream& operator >>(istream &i, vector<T> &A) {for(auto &I : A) {i >> I;} return i;} template<class T> ostream& operator <<(ostream &o, const vector<T> &A) {int i=A.size(); for(auto &I : A){o << I << (--i ? ELEM_SEPARATION : "");} return o;} template<class T> ostream& operator <<(ostream &o, const vector<vector<T>> &A) {int i=A.size(); for(auto &I : A){o << I << (--i ? VEC_SEPARATION : "");} return o;} template<class T> vector<T>& operator ++(vector<T> &A, int n) {for(auto &I : A) {I++;} return A;} template<class T> vector<T>& operator --(vector<T> &A, int n) {for(auto &I : A) {I--;} return A;} template<class T, class U> bool chmax(T &a, const U &b) {return ((a < b) ? (a = b, true) : false);} template<class T, class U> bool chmin(T &a, const U &b) {return ((a > b) ? (a = b, true) : false);} ll floor(ll a, ll b){if(b < 0) a = -a, b = -b; return a >= 0 ? a/b : (a+1)/b - 1;} ll ceil (ll a, ll b){if(b < 0) a = -a, b = -b; return a > 0 ? (a-1)/b + 1 : a/b;} ll bit(unsigned long long val, unsigned long long digit){return (val >> digit) & 1;} // ================================== ここまでテンプレ ================================== template<class Judgement> ll binary_search_ll(ll ok, ll ng, Judgement judge){ auto need_continue = [&]() -> bool { if(ok > ng) return((__int128_t)ok - (__int128_t)ng > 1); else return ((__int128_t)ng - (__int128_t)ok > 1); }; while(need_continue()){ ll mid = ((__int128_t)ok + (__int128_t)ng) / 2; if(judge(mid)) ok = mid; else ng = mid; } return ok; }; bool is_add_overflow(ll a, ll b){ return __builtin_add_overflow_p(a, b, 0LL); } bool is_sub_overflow(ll a, ll b){ return __builtin_sub_overflow_p(a, b, 0LL); } bool is_mul_overflow(ll a, ll b){ return __builtin_mul_overflow_p(a, b, 0LL); } int main(int argc, char *argv[]){ ios::sync_with_stdio(false); cin.tie(nullptr); ll s; cin >> s; vector<ll> ans; { ll r = s; while(r > 0){ auto judge = [&](ll m) -> bool { if(is_mul_overflow(m, m)) return false; else return (m*m <= r); }; ll sq = binary_search_ll(0, 2e9, judge); r -= sq*sq; ans.emplace_back(sq*sq); } } assert(ans.size() <= 15); assert(accumulate(ans.begin(), ans.end(), 0LL) == s); cout << ans.size() << endl; cout << ans << endl; return 0; }