結果
問題 | No.198 キャンディー・ボックス2 |
ユーザー | ty70 |
提出日時 | 2015-05-28 19:08:16 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 2 ms / 1,000 ms |
コード長 | 2,478 bytes |
コンパイル時間 | 940 ms |
コンパイル使用メモリ | 89,752 KB |
実行使用メモリ | 4,504 KB |
最終ジャッジ日時 | 2023-08-10 07:33:57 |
合計ジャッジ時間 | 2,140 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge13 |
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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
4,380 KB |
testcase_01 | AC | 2 ms
4,376 KB |
testcase_02 | AC | 2 ms
4,380 KB |
testcase_03 | AC | 1 ms
4,376 KB |
testcase_04 | AC | 1 ms
4,380 KB |
testcase_05 | AC | 2 ms
4,380 KB |
testcase_06 | AC | 1 ms
4,380 KB |
testcase_07 | AC | 2 ms
4,380 KB |
testcase_08 | AC | 2 ms
4,380 KB |
testcase_09 | AC | 2 ms
4,380 KB |
testcase_10 | AC | 1 ms
4,380 KB |
testcase_11 | AC | 2 ms
4,380 KB |
testcase_12 | AC | 1 ms
4,380 KB |
testcase_13 | AC | 1 ms
4,376 KB |
testcase_14 | AC | 2 ms
4,380 KB |
testcase_15 | AC | 1 ms
4,380 KB |
testcase_16 | AC | 1 ms
4,380 KB |
testcase_17 | AC | 1 ms
4,376 KB |
testcase_18 | AC | 1 ms
4,376 KB |
testcase_19 | AC | 1 ms
4,380 KB |
testcase_20 | AC | 2 ms
4,380 KB |
testcase_21 | AC | 1 ms
4,380 KB |
testcase_22 | AC | 2 ms
4,380 KB |
testcase_23 | AC | 2 ms
4,504 KB |
testcase_24 | AC | 2 ms
4,380 KB |
testcase_25 | AC | 2 ms
4,380 KB |
testcase_26 | AC | 1 ms
4,380 KB |
testcase_27 | AC | 1 ms
4,376 KB |
testcase_28 | AC | 2 ms
4,380 KB |
testcase_29 | AC | 1 ms
4,376 KB |
ソースコード
#include <iostream> #include <vector> #include <string> #include <stack> #include <queue> #include <deque> #include <set> #include <map> #include <algorithm> // require sort next_permutation count __gcd reverse etc. #include <cstdlib> // require abs exit atof atoi #include <cstdio> // require scanf printf #include <functional> #include <numeric> // require accumulate #include <cmath> // require fabs #include <climits> #include <limits> #include <cfloat> #include <iomanip> // require setw #include <sstream> // require stringstream #include <cstring> // require memset #include <cctype> // require tolower, toupper #include <fstream> // require freopen #include <ctime> // require srand #define rep(i,n) for(int i=0;i<(n);i++) #define ALL(A) A.begin(), A.end() #define INF 1LL<<60 using namespace std; typedef long long ll; typedef pair<int, int> P; ll C[12]; int N; ll f(ll base, ll B ){ ll curr = 0LL; rep (i, N ) { if (C[i] - base >= 0 ){ curr += C[i] - base; B += C[i] - base; }else{ if (B >= base - C[i] ){ curr += base - C[i]; B -= base - C[i]; }else{ curr = INF; break; } // end if } // end if } // end rep return curr; } ll ternary_search (ll lo, ll hi, ll B ){ if (N == 1 ) return 0LL; int cnt = 1000; while (cnt-- ){ ll cl = lo + (hi - lo )/3LL; ll ch = lo + 2LL*(hi - lo )/3LL; if (f(cl, B ) > f(ch, B ) ) lo = cl; else hi = ch; } // end while ll res = INF; for (ll base = max(lo-100LL, 0LL ); base <= hi; base++ ){ ll curr = f(base, B ); res = min (res, curr ); } // end for return res; } ll linear_search (ll lo, ll hi, ll B ){ if (N == 1 ) return 0LL; ll res = INF; for (ll base = lo; base <= hi; base++ ){ ll curr = 0LL; ll b = B; rep (i, N ){ if (C[i] - base >= 0 ){ curr += (C[i] - base ); b += (C[i] - base); }else{ if (b >= base - C[i] ){ curr += (base - C[i] ); b -= (base - C[i] ); }else{ curr = INF; break; } // end if } // edn if } // end rep res = min (res, curr ); } // end for return res; } int main() { memset (C, 0LL, sizeof (C ) ); ios_base::sync_with_stdio(0); ll B; cin >> B; cin >> N; ll sum = B; rep (i, N ) cin >> C[i], sum += C[i]; sort (C, C+N, greater<ll>() ); ll max_base = sum/(ll)N; ll lo = 0; ll hi = max_base + 1LL; ll res1 = ternary_search (lo, hi, B ); cout << res1 << endl; // ll res2 = linear_search (lo, hi, B ); // cout << res2 << endl; return 0; }