結果

問題 No.814 ジジ抜き
ユーザー ei1333333ei1333333
提出日時 2019-04-12 22:16:35
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 335 ms / 3,000 ms
コード長 2,963 bytes
コンパイル時間 2,089 ms
コンパイル使用メモリ 197,332 KB
最終ジャッジ日時 2025-01-07 01:52:50
ジャッジサーバーID
(参考情報)
judge4 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 23
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
using int64 = long long;
const int mod = 1e9 + 7;
const int inf = (1 << 30) - 1;
const int64 infll = (1LL << 61) - 1;
struct IoSetup {
IoSetup() {
cin.tie(nullptr);
ios::sync_with_stdio(false);
cout << fixed << setprecision(10);
cerr << fixed << setprecision(10);
}
} iosetup;
template< typename T1, typename T2 >
ostream &operator<<(ostream &os, const pair< T1, T2 > &p) {
os << p.first << " " << p.second;
return os;
}
template< typename T1, typename T2 >
istream &operator>>(istream &is, pair< T1, T2 > &p) {
is >> p.first >> p.second;
return is;
}
template< typename T >
ostream &operator<<(ostream &os, const vector< T > &v) {
for(int i = 0; i < (int) v.size(); i++) {
os << v[i] << (i + 1 != v.size() ? " " : "");
}
return os;
}
template< typename T >
istream &operator>>(istream &is, vector< T > &v) {
for(T &in : v) is >> in;
return is;
}
template< typename T1, typename T2 >
inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }
template< typename T1, typename T2 >
inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }
template< typename T = int64 >
vector< T > make_v(size_t a) {
return vector< T >(a);
}
template< typename T, typename... Ts >
auto make_v(size_t a, Ts... ts) {
return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));
}
template< typename T, typename V >
typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {
t = v;
}
template< typename T, typename V >
typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {
for(auto &e : t) fill_v(e, v);
}
template< typename T >
struct edge {
int src, to;
T cost;
edge(int to, T cost) : src(-1), to(to), cost(cost) {}
edge(int src, int to, T cost) : src(src), to(to), cost(cost) {}
edge &operator=(const int &x) {
to = x;
return *this;
}
operator int() const { return to; }
};
template< typename T >
using Edges = vector< edge< T > >;
template< typename T >
using WeightedGraph = vector< Edges< T > >;
using UnWeightedGraph = vector< vector< int > >;
template< typename T >
using Matrix = vector< vector< T > >;
int main() {
int N;
cin >> N;
vector< int64 > K(N), L(N), D(N);
for(int i = 0; i < N; i++) {
cin >> K[i] >> L[i] >> D[i];
}
int64 ok = infll, ng = -1;
vector< int64 > p(61);
p[0] = 1;
for(int i = 1; i < 61; i++) p[i] = p[i - 1] * 2;
auto check = [&](int64 pos) { // pos
bool add = false;
for(int i = 0; i < N; i++) {
// L[i]+(x-1)*p[i]≦pos
// x≦(pos-L[i])/(p[i]
if(pos < L[i]) continue;
int64 latte = max(0LL, (pos - L[i]) / p[D[i]] + 1);
chmin(latte, K[i]);
if(latte & 1) add ^= 1;
}
return add;
};
while(ok - ng > 1) {
int64 mid = (ok + ng) / 2;
if(check(mid)) ok = mid;
else ng = mid;
}
cout << ok << endl;
}
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