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#include "bubblesort2.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef string str;
typedef pair<int,int> pi;
typedef pair<ll,ll> pl;
typedef pair<db,db> pd;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<db> vd;
typedef vector<str> vs;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<pd> vpd;
#define mp make_pair
#define f first
#define s second
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend()
#define rsz resize
#define ins insert
#define ft front()
#define bk back()
#define pf push_front
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)
const int MOD = 1e9+7; // 998244353;
const int MX = 2e5+5;
const ll INF = 1e18;
const ld PI = acos((ld)-1);
const int xd[4] = {1,0,-1,0}, yd[4] = {0,1,0,-1};
mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count());
template<class T> bool ckmin(T& a, const T& b) {
return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) {
return a < b ? a = b, 1 : 0; }
int pct(int x) { return __builtin_popcount(x); }
int bits(int x) { return 31-__builtin_clz(x); } // floor(log2(x))
int cdiv(int a, int b) { return a/b+!(a<0||a%b == 0); } // division of a by b rounded up, assumes b > 0
int fstTrue(function<bool(int)> f, int lo, int hi) {
hi ++; assert(lo <= hi); // assuming f is increasing
while (lo < hi) { // find first index such that f is true
int mid = (lo+hi)/2;
f(mid) ? hi = mid : lo = mid+1;
}
return lo;
}
// INPUT
template<class A> void re(complex<A>& c);
template<class A, class B> void re(pair<A,B>& p);
template<class A> void re(vector<A>& v);
template<class A, size_t SZ> void re(array<A,SZ>& a);
template<class T> void re(T& x) { cin >> x; }
void re(db& d) { str t; re(t); d = stod(t); }
void re(ld& d) { str t; re(t); d = stold(t); }
template<class H, class... T> void re(H& h, T&... t) { re(h); re(t...); }
template<class A> void re(complex<A>& c) { A a,b; re(a,b); c = {a,b}; }
template<class A, class B> void re(pair<A,B>& p) { re(p.f,p.s); }
template<class A> void re(vector<A>& x) { trav(a,x) re(a); }
template<class A, size_t SZ> void re(array<A,SZ>& x) { trav(a,x) re(a); }
// TO_STRING
#define ts to_string
str ts(char c) { return str(1,c); }
str ts(bool b) { return b ? "true" : "false"; }
str ts(const char* s) { return (str)s; }
str ts(str s) { return s; }
template<class A> str ts(complex<A> c) {
stringstream ss; ss << c; return ss.str(); }
str ts(vector<bool> v) {
str res = "{"; F0R(i,sz(v)) res += char('0'+v[i]);
res += "}"; return res; }
template<size_t SZ> str ts(bitset<SZ> b) {
str res = ""; F0R(i,SZ) res += char('0'+b[i]);
return res; }
template<class A, class B> str ts(pair<A,B> p);
template<class T> str ts(T v) { // containers with begin(), end()
bool fst = 1; str res = "{";
for (const auto& x: v) {
if (!fst) res += ", ";
fst = 0; res += ts(x);
}
res += "}"; return res;
}
template<class A, class B> str ts(pair<A,B> p) {
return "("+ts(p.f)+", "+ts(p.s)+")"; }
// OUTPUT
template<class A> void pr(A x) { cout << ts(x); }
template<class H, class... T> void pr(const H& h, const T&... t) {
pr(h); pr(t...); }
void ps() { pr("\n"); } // print w/ spaces
template<class H, class... T> void ps(const H& h, const T&... t) {
pr(h); if (sizeof...(t)) pr(" "); ps(t...); }
// DEBUG
void DBG() { cerr << "]" << endl; }
template<class H, class... T> void DBG(H h, T... t) {
cerr << ts(h); if (sizeof...(t)) cerr << ", ";
DBG(t...); }
#ifdef LOCAL // compile with -DLOCAL
#define dbg(...) cerr << "LINE(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif
// FILE I/O
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
void unsyncIO() { ios_base::sync_with_stdio(0); cin.tie(0); }
void setIO(string s = "") {
unsyncIO();
// cin.exceptions(cin.failbit);
// throws exception when do smth illegal
// ex. try to read letter into int
if (sz(s)) { setIn(s+".in"), setOut(s+".out"); } // for USACO
}
/**
* Description: 1D range update and query, $SZ=2^p$.
* Source: USACO Counting Haybales
* Verification: SPOJ Horrible
*/
template<class T, int SZ> struct LazySeg {
T mx[2*SZ], lazy[2*SZ];
LazySeg() { F0R(i,2*SZ) mx[i] = lazy[i] = 0; }
void push(int ind, int L, int R) { /// modify values for current node
if (L != R) F0R(i,2) lazy[2*ind+i] += lazy[ind]; /// prop to children
mx[ind] += lazy[ind]; lazy[ind] = 0;
} // recalc values for current node
void pull(int ind) { mx[ind] = max(mx[2*ind], mx[2*ind+1]); }
void build() { ROF(i,1,SZ) pull(i); }
void upd(int lo,int hi,T inc,int ind=1,int L=0, int R=SZ-1) {
push(ind,L,R); if (hi < L || R < lo) return;
if (lo <= L && R <= hi) {
lazy[ind] = inc; push(ind,L,R); return; }
int M = (L+R)/2; upd(lo,hi,inc,2*ind,L,M);
upd(lo,hi,inc,2*ind+1,M+1,R); pull(ind);
}
T qmax(int lo, int hi, int ind=1, int L=0, int R = SZ-1) {
push(ind,L,R); if (lo > R || L > hi) return 0;
if (lo <= L && R <= hi) return mx[ind];
int M = (L+R)/2;
return max(qmax(lo,hi,2*ind,L,M), qmax(lo,hi,2*ind+1,M+1,R));
}
};
LazySeg<int, 1048576> lseg;
const int mx = 1000005;
set<int> maxind[mx];
void ERASE(int val){
int mind = *(prev(maxind[val].end()));
lseg.upd(val, val, -mind);
}
void INSERT(int val){
int mind = *(prev(maxind[val].end()));
lseg.upd(val, val, mind);
}
void updmaxind(int pval, int cval, int ind){
if(pval != -1){
lseg.upd(1, pval-1, -1);
ERASE(pval);
maxind[pval].erase(ind);
INSERT(pval);
}
lseg.upd(1, cval-1, 1);
ERASE(cval);
maxind[cval].ins(ind);
INSERT(cval);
}
vi countScans(vi A, vi X, vi V){
int N = sz(A);
int Q = sz(X);
//seg.init(N+Q+5);
map<int, int> m;
for(auto u: A){
m[u];
}
for(auto u: V){
m[u];
}
int cnt = 0;
for(auto &u: m){
u.s = ++cnt;
}
for(auto &u: A){
u = m[u];
}
for(auto &u: V){
u = m[u];
}
vi answer(Q);
// for(int i = 1; i <= 4; i++){
// ps(i, lseg.qmax(i, i));
// }
for(int i = 0; i < mx; i++){
maxind[i].ins(-MOD);
lseg.upd(i, i, 0-(N-1)-MOD);
}
for(int i = 0; i < N; i++){
updmaxind(-1, A[i], i);
}
for(int j = 0; j < Q; j++){
updmaxind(A[X[j]], V[j], X[j]);
A[X[j]] = V[j];
int ans = lseg.qmax(1, mx-1);
answer[j] = ans;
}
return answer;
}
// int main(){
// ps(countScans(vi{1, 2, 3, 4}, vi{0, 2}, vi{3, 1}));
// }
컴파일 시 표준 에러 (stderr) 메시지
bubblesort2.cpp: In function 'void setIn(std::__cxx11::string)':
bubblesort2.cpp:129:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
~~~~~~~^~~~~~~~~~~~~~~~~~~~~
bubblesort2.cpp: In function 'void setOut(std::__cxx11::string)':
bubblesort2.cpp:130:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
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