結果
問題 | No.180 美しいWhitespace (2) |
ユーザー | 0w1 |
提出日時 | 2017-01-06 18:53:13 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 3 ms / 5,000 ms |
コード長 | 1,996 bytes |
コンパイル時間 | 1,500 ms |
コンパイル使用メモリ | 170,732 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-05-09 21:03:02 |
合計ジャッジ時間 | 2,484 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 3 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 1 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 1 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 1 ms
5,376 KB |
testcase_25 | AC | 1 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 1 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 2 ms
5,376 KB |
testcase_33 | AC | 1 ms
5,376 KB |
testcase_34 | AC | 2 ms
5,376 KB |
コンパイルメッセージ
main.cpp: In function 'void solve()': main.cpp:91:13: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 91 | for( ; lb <= rb; ){ | ~~~^~~~~ main.cpp:83:6: note: 'x' was declared here 83 | ll x, min_ugliness = 1LL << 61; | ^
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef vector< int > vi; typedef vector< vi > vvi; typedef vector< ll > vl; typedef vector< vl > vvl; typedef pair< int, int > pii; typedef vector< pii > vp; typedef vector< double > vd; typedef vector< vd > vvd; typedef vector< string > vs; template< class T1, class T2 > int upmin( T1 &x, T2 v ){ if( x > v ){ x = v; return 1; } return 0; } template< class T1, class T2 > int upmax( T1 &x, T2 v ){ if( x < v ){ x = v; return 1; } return 0; } const int INF = 0x3f3f3f3f; int N; vi A, B; void init(){ cin >> N; A = B = vi( N ); for( int i = 0; i < N; ++i ){ cin >> A[ i ] >> B[ i ]; } } void preprocess(){ } ll calc( ll x ){ ll maxv = - ( 1LL << 61 ); for( int i = 0; i < N; ++i ){ upmax( maxv, 1LL * A[ i ] + 1LL * B[ i ] * x ); } ll minv = 1LL << 61; for( int i = 0; i < N; ++i ){ upmin( minv, 1LL * A[ i ] + 1LL * B[ i ] * x ); } return maxv - minv; } void solve(){ ll lb = 1LL, rb = ( ll ) 1e9; for( ; rb - lb > 5; ){ ll p = ( lb * 2 + rb ) / 3; ll q = ( lb + rb * 2 ) / 3; ll rl = calc( lb ); ll rp = calc( p ); ll rq = calc( q ); ll rr = calc( rb ); if( rl <= rp and rp <= rq and rq <= rr ){ rb = p; } else if( rl >= rp and rp <= rq and rq <= rr ){ rb = q; } else if( rl >= rp and rp >= rq and rq <= rr ){ lb = p; } else if( rl >= rp and rp >= rq and rq >= rr ){ lb = q; } else{ assert( false ); } } ll x, min_ugliness = 1LL << 61; for( ll t = lb; t <= rb; ++t ){ if( upmin( min_ugliness, calc( t ) ) ){ x = t; } } lb = 1LL, rb = x; ll ans = x; for( ; lb <= rb; ){ ll mid = ( lb + rb ) / 2; if( calc( mid ) == min_ugliness ){ ans = mid; rb = mid - 1; } else{ lb = mid + 1; } } cout << ans << endl; } signed main(){ ios::sync_with_stdio( 0 ); init(); preprocess(); solve(); return 0; }