結果
問題 | No.507 ゲーム大会(チーム決め) |
ユーザー | mai |
提出日時 | 2017-07-08 09:33:28 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,027 bytes |
コンパイル時間 | 3,183 ms |
コンパイル使用メモリ | 217,076 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-06 19:34:49 |
合計ジャッジ時間 | 4,119 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | WA | - |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | WA | - |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 16 ms
5,248 KB |
testcase_08 | AC | 14 ms
5,248 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
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 | } | ^ main.cpp: At global scope: main.cpp:108:40: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 108 | INTEGER b_search(INTEGER l, INTEGER h, auto func) { | ^~~~
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; int m, n, kei; ll aa[100010]; int calc_rank(int pr) { ll myscore = aa[0] + aa[pr]; int top = 1; int bottom = n - 1; int rank = 1; for (; top < bottom;) { if (top == pr) { ++top; continue; } if (bottom == pr) { --bottom; continue; } ll sc = aa[top] + aa[bottom]; if (sc <= myscore) { --bottom; continue; } if (sc > myscore) { rank += 1; ++top; --bottom; continue; } } return rank; } template<typename INTEGER> INTEGER b_search(INTEGER l, INTEGER h, auto func) { INTEGER c; while (l + 1 < h) { c = (l + h) / 2; if (func(c)) { h = c; } else { l = c; } } return h; } int main() { scanner >> n >> m; repeat(n) { scanner >> aa[cnt]; } sort(aa + 1, aa + n, [](int l, int r) {return l > r; }); int pidx = b_search(1, n - 1, [](int t) {return calc_rank(t) > m; }); if (calc_rank(pidx) > m) cout << -1 << endl; else cout << aa[pidx] << endl; return 0; }