제출 #598304

#제출 시각아이디문제언어결과실행 시간메모리
598304jeroenodb팀들 (IOI15_teams)C++14
컴파일 에러
0 ms0 KiB
#include "bits/stdc++.h" using namespace std; #define all(x) begin(x),end(x) template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; } template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { string sep; for (const T &x : v) os << sep << x, sep = " "; return os; } #define debug(a) cerr << "(" << #a << ": " << a << ")\n"; typedef long long ll; typedef vector<int> vi; typedef vector<vi> vvi; typedef pair<int,int> pi; const int mxN = 5e5+2, oo = 1e9; #define sz(x) size(x) struct FT { vector<ll> s; FT(int n) : s(n) {} void update(int pos, ll dif) { // a[pos] += dif for (; pos < sz(s); pos |= pos + 1) s[pos] += dif; } ll query(int pos) { // sum of values in [0, pos) ll res = 0; for (; pos > 0; pos &= pos - 1) res += s[pos-1]; return res; } int lower_bound(ll sum) {// min pos st sum of [0, pos] >= sum // Returns n if no sum is >= sum, or -1 if empty sum is. if (sum <= 0) return -1; int pos = 0; for (int pw = 1 << 25; pw; pw >>= 1) { if (pos + pw <= sz(s) && s[pos + pw-1] < sum) pos += pw, sum -= s[pos-1]; } return pos; } }; struct FT2 { vector<vi> ys; vector<FT> ft; FT2(int limx) : ys(limx) {} void fakeUpdate(int x, int y) { for (; x < sz(ys); x |= x + 1) ys[x].push_back(y); } void init() { for (vi& v : ys) sort(all(v)), ft.emplace_back(sz(v)); } int ind(int x, int y) { return (int)(lower_bound(all(ys[x]), y) - ys[x].begin()); } void update(int x, int y, ll dif) { for (; x < sz(ys); x |= x + 1) ft[x].update(ind(x, y), dif); } ll query(int x, int y) { ll sum = 0; for (; x; x &= x - 1) sum += ft[x-1].query(ind(x-1, y)); return sum; } ll query(int l, int r, int a, int b) { return query(r,b)-query(r,a)-query(l,b)+query(l,a); } }; #include "teams.h" int pref[mxN] = {}, pref2[mxN]; FT2 fen(mxN); void init(int N, int A[], int B[]) { for(int i=0;i<N;++i) { pref[A[i]]++; pref2[B[i]+1]++; fen.fakeUpdate(A[i],B[i]); } fen.init(); for(int i=0;i<N;++i) { fen.update(A[i],B[i],1); } partial_sum(pref,pref+mxN,pref); partial_sum(pref2,pref2+mxN,pref2); } int can(int M, int K[]) { sort(K,K+M); int from=0, opens=0, closes=0; for(int i=0;i<M;++i) { int at = K[i]; opens+=pref[at]-pref[from]; int tmp = min(closes,pref2[at]-pref2[from]-(int)fen.query(from+1,mxN-1,0,at-1)); // not all closing brackets are from before, need to have extra condition. // count number of intervals inside a region... // Some 2D data structure solves this in log^2(n) closes-=tmp; opens-=pref2[at]-pref2[from]-tmp; if(opens<at) return false; opens-=at; closes+=at; from = at; } return true; }

컴파일 시 표준 에러 (stderr) 메시지

teams.cpp: In member function 'void FT::update(int, ll)':
teams.cpp:12:16: error: 'size' was not declared in this scope; did you mean 'dysize'?
   12 | #define sz(x)  size(x)
      |                ^~~~
teams.cpp:17:16: note: in expansion of macro 'sz'
   17 |   for (; pos < sz(s); pos |= pos + 1) s[pos] += dif;
      |                ^~
teams.cpp: In member function 'int FT::lower_bound(ll)':
teams.cpp:12:16: error: 'size' was not declared in this scope; did you mean 'dysize'?
   12 | #define sz(x)  size(x)
      |                ^~~~
teams.cpp:29:20: note: in expansion of macro 'sz'
   29 |    if (pos + pw <= sz(s) && s[pos + pw-1] < sum)
      |                    ^~
teams.cpp: In member function 'void FT2::fakeUpdate(int, int)':
teams.cpp:12:16: error: 'size' was not declared in this scope; did you mean 'dysize'?
   12 | #define sz(x)  size(x)
      |                ^~~~
teams.cpp:39:14: note: in expansion of macro 'sz'
   39 |   for (; x < sz(ys); x |= x + 1) ys[x].push_back(y);
      |              ^~
teams.cpp: In member function 'void FT2::init()':
teams.cpp:12:16: error: 'size' was not declared in this scope; did you mean 'dysize'?
   12 | #define sz(x)  size(x)
      |                ^~~~
teams.cpp:42:50: note: in expansion of macro 'sz'
   42 |   for (vi& v : ys) sort(all(v)), ft.emplace_back(sz(v));
      |                                                  ^~
teams.cpp: In member function 'void FT2::update(int, int, ll)':
teams.cpp:12:16: error: 'size' was not declared in this scope; did you mean 'dysize'?
   12 | #define sz(x)  size(x)
      |                ^~~~
teams.cpp:47:14: note: in expansion of macro 'sz'
   47 |   for (; x < sz(ys); x |= x + 1)
      |              ^~