結果
問題 | No.120 傾向と対策:門松列(その1) |
ユーザー | mai |
提出日時 | 2017-06-26 19:56:09 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 22 ms / 5,000 ms |
コード長 | 3,960 bytes |
コンパイル時間 | 3,538 ms |
コンパイル使用メモリ | 228,916 KB |
実行使用メモリ | 6,816 KB |
最終ジャッジ日時 | 2024-11-14 20:05:51 |
合計ジャッジ時間 | 4,109 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 16 ms
6,816 KB |
testcase_01 | AC | 22 ms
6,816 KB |
testcase_02 | AC | 12 ms
6,816 KB |
testcase_03 | AC | 22 ms
6,816 KB |
コンパイルメッセージ
main.cpp: In member function '{anonymous}::MaiScanner& {anonymous}::MaiScanner::operator>>(std::string&)': main.cpp:72:9: warning: no return statement in function returning non-void [-Wreturn-type] 72 | } | ^
ソースコード
#pragma GCC optimize ("O3") #pragma GCC target ("avx") #include "bits/stdc++.h" // define macro "/D__MAI" using namespace std; typedef long long int ll; #define debugv(v) printf("L%d %s => ",__LINE__,#v);for(auto e:v){cout<<e<<" ";}cout<<endl; #define debugm(m) printf("L%d %s is..\n",__LINE__,#m);for(auto v:m){for(auto e:v){cout<<e<<" ";}cout<<endl;} #define debuga(m,w) printf("L%d %s is => ",__LINE__,#m);for(int x=0;x<(w);x++){cout<<(m)[x]<<" ";}cout<<endl; #define debugaa(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[x][y]<<" ";}cout<<endl;} #define debugaar(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[y][x]<<" ";}cout<<endl;} #define ALL(v) (v).begin(),(v).end() #define repeat(l) for(auto cnt=0;cnt<(l);++cnt) #define iterate(b,e) for(auto cnt=(b);cnt!=(e);++cnt) #define MD 1000000007ll #define PI 3.1415926535897932384626433832795 template<typename T1, typename T2> ostream& operator <<(ostream &o, const pair<T1, T2> p) { o << "(" << p.first << ":" << p.second << ")"; return o; } #define TIME chrono::system_clock::now() #define MILLISEC(t) (chrono::duration_cast<chrono::milliseconds>(t).count()) namespace { std::chrono::system_clock::time_point ttt; void tic() { ttt = TIME; } void toc() { fprintf(stderr, "TIME : %lldms\n", MILLISEC(TIME - ttt)); } std::chrono::system_clock::time_point tle = TIME; #ifdef __MAI void safe_tle(int msec) { assert(MILLISEC(TIME - tle) < msec); } #else #define safe_tle(k) ; #endif } #ifdef __MAI #define getchar_unlocked getchar #define putchar_unlocked putchar #endif #ifdef __VSCC #define getchar_unlocked _getchar_nolock #define putchar_unlocked _putchar_nolock #endif namespace { #define isvisiablechar(c) (0x21<=(c)&&(c)<=0x7E) class MaiScanner { public: template<typename T> void input_integer(T& var) { var = 0; T sign = 1; int cc = getchar_unlocked(); for (; cc<'0' || '9'<cc; cc = getchar_unlocked()) if (cc == '-') sign = -1; for (; '0' <= cc&&cc <= '9'; cc = getchar_unlocked()) var = (var << 3) + (var << 1) + cc - '0'; var = var*sign; } inline int c() { return getchar_unlocked(); } inline MaiScanner& operator>>(int& var) { input_integer<int>(var); return *this; } inline MaiScanner& operator>>(long long& var) { input_integer<long long>(var); return *this; } inline MaiScanner& operator>>(string& var) { int cc = getchar_unlocked(); for (; !isvisiablechar(cc); cc = getchar_unlocked()); for (; isvisiablechar(cc); cc = getchar_unlocked()) var.push_back(cc); } }; } MaiScanner scanner; inline bool kadomatu(int a, int b, int c) { return (a!=c)&&((a<b&&b>c)||(a>b&&b<c)); } int solve() { int n; scanner >> n; map<int, int> take; repeat(n) { int l; scanner >> l; take[l] += 1; } if (n <= 2 || take.size() <= 2) { cout << 0 << endl; return 0; } priority_queue<pair<int, int>> matz; for (auto& t : take) { matz.emplace(t.second, t.first); } int result = 0; while (true) { if (matz.empty()) break; auto a = matz.top(); matz.pop(); if (matz.empty()) break; auto b = matz.top(); matz.pop(); if (matz.empty()) break; auto c = matz.top(); matz.pop(); //int m = min(a.first, b.first, c.first); result += 1; if (a.first -= 1) matz.push(a); if (b.first -= 1) matz.push(b); if (c.first -= 1) matz.push(c); } cout << result << endl; return 0; } int main() { int nt; scanner >> nt; repeat(nt) { solve(); } return 0; }