結果
問題 | No.2543 Many Meetings |
ユーザー | 👑 amentorimaru |
提出日時 | 2023-11-24 22:15:37 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 616 ms / 2,000 ms |
コード長 | 4,195 bytes |
コンパイル時間 | 4,430 ms |
コンパイル使用メモリ | 243,780 KB |
実行使用メモリ | 52,796 KB |
最終ジャッジ日時 | 2024-09-26 09:27:36 |
合計ジャッジ時間 | 16,400 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 521 ms
52,672 KB |
testcase_04 | AC | 526 ms
52,796 KB |
testcase_05 | AC | 522 ms
52,672 KB |
testcase_06 | AC | 527 ms
52,592 KB |
testcase_07 | AC | 526 ms
52,584 KB |
testcase_08 | AC | 592 ms
52,796 KB |
testcase_09 | AC | 589 ms
52,668 KB |
testcase_10 | AC | 616 ms
52,612 KB |
testcase_11 | AC | 596 ms
52,796 KB |
testcase_12 | AC | 592 ms
52,716 KB |
testcase_13 | AC | 378 ms
43,288 KB |
testcase_14 | AC | 200 ms
25,676 KB |
testcase_15 | AC | 189 ms
25,356 KB |
testcase_16 | AC | 314 ms
35,020 KB |
testcase_17 | AC | 362 ms
41,388 KB |
testcase_18 | AC | 432 ms
45,680 KB |
testcase_19 | AC | 388 ms
42,088 KB |
testcase_20 | AC | 397 ms
42,560 KB |
testcase_21 | AC | 469 ms
48,392 KB |
testcase_22 | AC | 382 ms
41,392 KB |
testcase_23 | AC | 4 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 3 ms
5,376 KB |
testcase_28 | AC | 339 ms
40,652 KB |
testcase_29 | AC | 102 ms
15,580 KB |
testcase_30 | AC | 106 ms
15,744 KB |
testcase_31 | AC | 85 ms
13,804 KB |
testcase_32 | AC | 307 ms
38,408 KB |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | AC | 2 ms
5,376 KB |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | AC | 2 ms
5,376 KB |
testcase_37 | AC | 2 ms
5,376 KB |
testcase_38 | AC | 2 ms
5,376 KB |
testcase_39 | AC | 2 ms
5,376 KB |
testcase_40 | AC | 2 ms
5,376 KB |
testcase_41 | AC | 2 ms
5,376 KB |
testcase_42 | AC | 2 ms
5,376 KB |
ソースコード
#define ATCODER #define _USE_MATH_DEFINES #include<stdio.h> #include<iostream> #include<fstream> #include<algorithm> #include<vector> #include<string> #include <cassert> #include <numeric> #include <unordered_map> #include <unordered_set> #include <queue> #include <math.h> #include <climits> #include <set> #include <map> #include <list> #include <random> #include <iterator> #include <bitset> #include <chrono> using namespace std; using ll = long long; using ld = long double; using pll = pair<ll, ll>; using pdd = pair<ld, ld>; //template<class T> using pq = priority_queue<T, vector<T>, greater<T>>; #define FOR(i, a, b) for(ll i=(a); i<(b);i++) #define REP(i, n) for(ll i=0; i<(n);i++) #define ROF(i, a, b) for(ll i=(b-1); i>=(a);i--) #define PER(i, n) for(ll i=n-1; i>=0;i--) #define REPREP(i,j,a,b) for(ll i=0;i<a;i++)for(ll j=0;j<b;j++) #define VV(type) vector< vector<type> > #define VV2(type,n,m,val) vector< vector<type> > val;val.resize(n);for(ll i;i<n;i++)val[i].resize(m) #define vec(type) vector<type> #define VEC(type,n,val) vector<type> val;val.resize(n) #define VL vector<ll> #define VVL vector< vector<ll> > #define VP vector< pair<ll,ll> > #define SZ size() #define all(i) begin(i),end(i) #define SORT(i) sort(all(i)) #define BITI(i) (1<<i) #define BITSET(x,i) x | (ll(1)<<i) #define BITCUT(x,i) x & ~(ll(1)<<i) #define EXISTBIT(x,i) (((x>>i) & 1) != 0) #define ALLBIT(n) (ll(1)<<n-1) #define CHMAX(n,v) n=n<v?v:n #define CHMIN(n,v) n=n>v?v:n #define MP(a,b) make_pair(a,b) #define DET2(x1,y1,x2,y2) x1*y2-x2*y1 #define DET3(x1,y1,z1,x2,y2,z2,x3,y3,z3) x1*y2*z3+x2*y3*z1+x3*y1*z2-z1*y2*x3-z2*y3*x1-z3*y1*x2 #define INC(a) for(auto& v:a)v++; #define DEC(a) for(auto& v:a)v--; #define SQU(x) (x)*(x) #define L0 ll(0) #ifdef ATCODER #include <atcoder/all> using namespace atcoder; using mint = modint1000000007; using mint2 = modint998244353; #endif template<typename T = ll> vector<T> read(size_t n) { vector<T> ts(n); for (size_t i = 0; i < n; i++) cin >> ts[i]; return ts; } template<typename TV, const ll N> void read_tuple_impl(TV&) {} template<typename TV, const ll N, typename Head, typename... Tail> void read_tuple_impl(TV& ts) { get<N>(ts).emplace_back(*(istream_iterator<Head>(cin))); read_tuple_impl<TV, N + 1, Tail...>(ts); } template<typename... Ts> decltype(auto) read_tuple(size_t n) { tuple<vector<Ts>...> ts; for (size_t i = 0; i < n; i++) read_tuple_impl<decltype(ts), 0, Ts...>(ts); return ts; } using val = ll; using func = ll; val op(val a, val b) { return min(a, b); } val e() { return 1e18; } //val mp(func f, val a) { // return MP(a.first + f * a.second, a.second); //} func comp(func f, func g) { return f + g; } func id() { return 0; } ll di[4] = { 1,0,-1,0 }; ll dj[4] = { 0,1,0,-1 }; ll si[4] = { 0,3,3,0 }; ll sj[4] = { 0,0,3,3 }; //ll di[4] = { -1,-1,1,1 }; //ll dj[4] = { -1,1,-1,1 }; ll di8[8] = { 0,-1,-1,-1,0,1,1,1 }; ll dj8[8] = { -1,-1,0,1,1,1,0,-1 }; ll s; bool f(val v) { return v <= s; } void solve() { ll n, k; cin >> n >> k; auto [l, r] = read_tuple<ll, ll>(n); VP lr(n); REP(i, n) lr[i] = MP(l[i], r[i]); SORT(lr); segtree<val, op, e> st(n); REP(i, n) st.set(i, lr[i].second); VVL p(n, vector<ll>(20, -1)); REP(i, n) { auto il = lower_bound(all(lr), MP(lr[i].second, 0LL)); if (il == lr.end()) continue; ll id = il - lr.begin(); ll mn = st.prod(id, n); ll l1 = id, r1 = n; while (l1 + 1 < r1) { ll m = (l1 + r1) / 2; ll mn1 = st.prod(id, m); if (mn == mn1) { r1 = m; } else { l1 = m; } } p[i][0] = l1; } REP(i, 19) { REP(v, n) { if (p[v][i] == -1) continue; p[v][i + 1] = p[p[v][i]][i]; } } ll ans = 1e18; k--; REP(v, n) { ll kk = k; ll now = v; PER(i, 20) { ll up = 1LL << i; if (kk >= up) { now = p[now][i]; kk -= up; } if (now == -1) break; } if (now == -1) continue; CHMIN(ans, lr[now].second - lr[v].first); } if (ans > 1e17) ans = -1; cout << ans; return; } int main() { ll t = 1; ///cin >> t; while (t--) { solve(); } return 0; }