結果
問題 | No.491 10^9+1と回文 |
ユーザー | satanic |
提出日時 | 2017-03-11 00:19:00 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,502 bytes |
コンパイル時間 | 1,129 ms |
コンパイル使用メモリ | 122,864 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-06-24 09:15:26 |
合計ジャッジ時間 | 5,489 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | RE | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | RE | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | WA | - |
testcase_20 | AC | 1 ms
6,944 KB |
testcase_21 | WA | - |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | WA | - |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | RE | - |
testcase_27 | AC | 2 ms
6,940 KB |
testcase_28 | AC | 2 ms
6,940 KB |
testcase_29 | AC | 1 ms
6,944 KB |
testcase_30 | WA | - |
testcase_31 | RE | - |
testcase_32 | WA | - |
testcase_33 | AC | 2 ms
6,940 KB |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | RE | - |
testcase_37 | AC | 2 ms
6,944 KB |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | RE | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | AC | 2 ms
6,940 KB |
testcase_48 | AC | 2 ms
6,940 KB |
testcase_49 | RE | - |
testcase_50 | WA | - |
testcase_51 | WA | - |
testcase_52 | WA | - |
testcase_53 | RE | - |
testcase_54 | AC | 2 ms
6,944 KB |
testcase_55 | AC | 3 ms
6,940 KB |
testcase_56 | AC | 2 ms
6,944 KB |
testcase_57 | WA | - |
testcase_58 | WA | - |
testcase_59 | WA | - |
testcase_60 | WA | - |
testcase_61 | AC | 2 ms
6,944 KB |
testcase_62 | WA | - |
testcase_63 | WA | - |
testcase_64 | WA | - |
testcase_65 | AC | 2 ms
6,944 KB |
testcase_66 | AC | 2 ms
6,944 KB |
testcase_67 | WA | - |
testcase_68 | WA | - |
testcase_69 | RE | - |
testcase_70 | AC | 2 ms
6,944 KB |
testcase_71 | WA | - |
testcase_72 | WA | - |
testcase_73 | WA | - |
testcase_74 | WA | - |
testcase_75 | AC | 2 ms
6,940 KB |
testcase_76 | AC | 2 ms
6,940 KB |
testcase_77 | AC | 2 ms
6,940 KB |
testcase_78 | WA | - |
testcase_79 | WA | - |
testcase_80 | RE | - |
testcase_81 | AC | 2 ms
6,940 KB |
testcase_82 | AC | 2 ms
6,940 KB |
testcase_83 | WA | - |
testcase_84 | AC | 2 ms
6,944 KB |
testcase_85 | WA | - |
testcase_86 | AC | 2 ms
6,940 KB |
testcase_87 | WA | - |
testcase_88 | RE | - |
testcase_89 | WA | - |
testcase_90 | WA | - |
testcase_91 | WA | - |
testcase_92 | AC | 2 ms
6,940 KB |
testcase_93 | WA | - |
testcase_94 | WA | - |
testcase_95 | AC | 2 ms
6,944 KB |
testcase_96 | WA | - |
testcase_97 | WA | - |
testcase_98 | WA | - |
testcase_99 | WA | - |
testcase_100 | WA | - |
testcase_101 | WA | - |
testcase_102 | WA | - |
testcase_103 | WA | - |
testcase_104 | WA | - |
testcase_105 | WA | - |
ソースコード
// need #include <iostream> #include <algorithm> // data structure #include <bitset> //#include <list> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <utility> #include <vector> //#include <array> //#include <tuple> #include <unordered_map> #include <unordered_set> #include <complex> //#include <deque> #include<valarray> // stream //#include <istream> //#include <sstream> //#include <ostream> // etc #include <cassert> #include <functional> #include <iomanip> //#include <typeinfo> #include <chrono> #include <random> #include <numeric> #define INIT std::ios::sync_with_stdio(false);std::cin.tie(0); #define VAR(type, ...)type __VA_ARGS__;MACRO_VAR_Scan(__VA_ARGS__); template<typename T> void MACRO_VAR_Scan(T& t) { std::cin >> t; } template<typename First, typename...Rest>void MACRO_VAR_Scan(First& first, Rest&...rest) { std::cin >> first; MACRO_VAR_Scan(rest...); } #define VEC_ROW(type, n, ...)std::vector<type> __VA_ARGS__;MACRO_VEC_ROW_Init(n, __VA_ARGS__); for(int i=0; i<n; ++i){MACRO_VEC_ROW_Scan(i, __VA_ARGS__);} template<typename T> void MACRO_VEC_ROW_Init(int n, T& t) { t.resize(n); } template<typename First, typename...Rest>void MACRO_VEC_ROW_Init(int n, First& first, Rest&...rest) { first.resize(n); MACRO_VEC_ROW_Init(n, rest...); } template<typename T> void MACRO_VEC_ROW_Scan(int p, T& t) { std::cin >> t[p]; } template<typename First, typename...Rest>void MACRO_VEC_ROW_Scan(int p, First& first, Rest&...rest) { std::cin >> first[p]; MACRO_VEC_ROW_Scan(p, rest...); } #define OUT(d) std::cout<<d; #define FOUT(n, d) std::cout<<std::fixed<<std::setprecision(n)<<d; #define SOUT(n, c, d) std::cout<<std::setw(n)<<std::setfill(c)<<d; #define SP std::cout<<" "; #define TAB std::cout<<"\t"; #define BR std::cout<<"\n"; #define ENDL std::cout<<std::endl; #define FLUSH std::cout<<std::flush; #define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i; #define MAT(type, c, m, n) std::vector<std::vector<type>> c(m, std::vector<type>(n));for(auto& r:c)for(auto& i:r)std::cin>>i; #define ALL(a) (a).begin(),(a).end() #define FOR(i, a, b) for(int i=(a);i<(b);++i) #define RFOR(i, a, b) for(int i=(b)-1;i>=(a);--i) #define REP(i, n) for(int i=0;i<int(n);++i) #define RREP(i, n) for(int i=(n)-1;i>=0;--i) #define FORLL(i, a, b) for(ll i=ll(a);i<ll(b);++i) #define RFORLL(i, a, b) for(ll i=ll(b)-1;i>=ll(a);--i) #define REPLL(i, n) for(ll i=0;i<ll(n);++i) #define RREPLL(i, n) for(ll i=ll(n)-1;i>=0;--i) #define PAIR std::pair<int, int> #define PAIRLL std::pair<ll, ll> #define IN(a, x, b) (a<=x && x<b) #define SHOW(d) {std::cerr << #d << "\t:" << d << "\n";} #define SHOWVECTOR(v) {std::cerr << #v << "\t:";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";} #define SHOWVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr << yyy << " ";}std::cerr << "\n";}} #define SHOWPAIR(p) {std::cerr << #p << "\t:(" << p.first << ",\t" << p.second << ")\n";} #define SHOWPAIRVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr<<'('<<yyy.first<<", "<<yyy.second<<") ";}std::cerr << "\n";}} #define SHOWPAIRVECTOR(v) {for(const auto& xxx:v){std::cerr<<'('<<xxx.first<<", "<<xxx.second<<") ";}std::cerr<<"\n";} #define SHOWQUEUE(a) {std::queue<decltype(a.front())> tmp(a);std::cerr << #a << "\t:";for(int i=0; i<static_cast<int>(a.size()); ++i){std::cerr << tmp.front() << "\n";tmp.pop();}std::cerr << "\n";} template<typename T> inline T CHMAX(T& a, const T b) { return a = (a < b) ? b : a; } template<typename T> inline T CHMIN(T& a, const T b) { return a = (a > b) ? b : a; } #define EXCEPTION(msg) throw std::string("Exception : " msg " [ in ") + __func__ + " : " + std::to_string(__LINE__) + " lines ]" #define TRY(cond, msg) try {if (cond) EXCEPTION(msg);}catch (std::string s) {std::cerr << s << std::endl;} void CHECKTIME(std::function<void()> f) { auto start = std::chrono::system_clock::now(); f(); auto end = std::chrono::system_clock::now(); auto res = std::chrono::duration_cast<std::chrono::nanoseconds>((end - start)).count(); std::cerr << "[Time:" << res << "ns (" << res / (1.0e9) << "s)]\n"; } #define int ll using ll = long long; using ull = unsigned long long; constexpr int INFINT = 1 << 30; // 1.07x10^ 9 constexpr int INFINT_LIM = (1LL << 31) - 1; // 2.15x10^ 9 constexpr ll INFLL = 1LL << 60; // 1.15x10^18 constexpr ll INFLL_LIM = (1LL << 62) - 1 + (1LL << 62); // 9.22x10^18 constexpr double EPS = 1e-7; constexpr int MOD = 1000000007; constexpr double PI = 3.141592653589793238462643383279; bool isPalindromic(const std::string& s) { if (s.size() == 1) return true; size_t sn = s.size(); size_t n = sn / 2; for (size_t i = 0; i < n; ++i) { if (s[i] != s[sn - i - 1]) return false; } return true; } int cnt[11]; signed main() { INIT; FOR(i, 1, 11) { cnt[i] = 9; REP(j, (i - 1) / 2) cnt[i] *= 10; cnt[i] += cnt[i - 1]; } VAR(int, bn); int n = bn; int q = n % 1000000000; n /= 1000000000; std::string s(std::to_string(n)); int res = 0; if (isPalindromic(s)) { if (n <= q) ++res; } n = bn; n /= 1000000000; --n; s = std::to_string(n); int sz = s.size(); auto ss(s); ss.resize((sz + 1) / 2); n = std::stoi(ss); int p = sz / 2; RREP(i, p) { int j = sz - i - 1; if (s[i] == s[j]) continue; if (s[i] > s[j]) --n; break; } res += n; res += cnt[s.size() - 1]; OUT(res)BR; return 0; }