| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 700155 | PedroBigMan | Distributing Candies (IOI21_candies) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/*
Author of all code: Pedro BIGMAN Dias
Last edit: 15/02/2021
*/
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC optimize("Ofast")
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <string>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <deque>
#include <list>
#include <iomanip>
#include <stdlib.h>
#include <time.h>
#include <cstring>
#include "candies.h"
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;
typedef long double ld;
#define REP(i,a,b) for(ll i=(ll) a; i<(ll) b; i++)
#define pb push_back
#define mp make_pair
#define pl pair<ll,ll>
#define ff first
#define ss second
#define whole(x) x.begin(),x.end()
#define DEBUG(i) cout<<"Pedro Is The Master "<<i<<endl
#define INF 500000000000000LL
#define EPS 0.00000001
#define pi 3.14159
#define VV(vvvv,NNNN,xxxx); REP(i,0,NNNN) {vvvv.pb(xxxx);}
ll mod=1000000007LL;
template<class A=ll>
void Out(vector<A> a) {REP(i,0,a.size()) {cout<<a[i]<<" ";} cout<<endl;}
template<class A=ll>
void In(vector<A> &a, ll N) {A cur; REP(i,0,N) {cin>>cur; a.pb(cur);}}
class ST
{
public:
ll N;
class SV //seg value
{
public:
ll a;
SV() {a=-INF;}
SV(ll x) {a=x;}
SV operator & (SV X) {SV ANS(max(a,X.a)); return ANS;}
};
class LV //lazy value
{
public:
pl ext; ll s;
LV() {ext={-INF,INF}; s=0LL;}
LV(pl ex, ll sss) {ext=ex; s=sss;}
LV operator & (LV X)
{
if(max(ext.ff,X.ext.ff+s)<=min(ext.ss,X.ext.ss+s)) {LV ANS({max(ext.ff,X.ext.ff+s),min(ext.ss,X.ext.ss+s)},s+X.s); return ANS;}
else if(ext.ss<X.ext.ff+s) {LV ANS({ext.ss,ext.ss},0LL); return ANS;}
else {LV ANS({ext.ff,ext.ff},0LL); return ANS;}
}
};
SV upval(ll c) //how lazy values modify a seg value inside a node, c=current node
{
SV ANS(max(lazy[c].ext.ff,min(lazy[c].ext.ss,p[c].a+lazy[c].s)));
return ANS;
}
SV neuts; LV neutl;
vector<SV> p;
vector<LV> lazy;
vector<pl> range;
ST() {N=0LL;}
ST(vector<ll> arr)
{
N = (ll) 1<<(ll) ceil(log2(arr.size()));
REP(i,0,2*N) {range.pb(mp(0LL,0LL));}
REP(i,0,N) {p.pb(neuts);}
REP(i,0,arr.size()) {SV X(arr[i]); p.pb(X); range[i+N]=mp(i,i);}
REP(i,arr.size(),N) {p.pb(neuts); range[i+N]=mp(i,i);}
ll cur = N-1;
while(cur>0)
{
p[cur]=p[2*cur]&p[2*cur+1];
range[cur]=mp(range[2*cur].ff,range[2*cur+1].ss);
cur--;
}
REP(i,0,2*N) {lazy.pb(neutl);}
}
void prop(ll c) //how lazy values propagate
{
lazy[2*c]=lazy[c]&lazy[2*c]; lazy[2*c+1]=lazy[c]&lazy[2*c+1];
lazy[c]=neutl;
}
SV query(ll a,ll b, ll c=1LL) //range [a,b], current node. initially: query(a,b)
{
ll x=range[c].ff; ll y=range[c].ss;
if(y<a || x>b) {return neuts;}
if(x>=a && y<=b) {return upval(c);}
prop(c);
p[c]=upval(2*c)&upval(2*c+1);
SV ans = query(a,b,2*c)&query(a,b,2*c+1);
return ans;
}
void update(LV s, ll a, ll b, ll c=1LL) //update LV, range [a,b], current node, current range. initially: update(s,a,b)
{
ll x=range[c].ff; ll y=range[c].ss;
if(y<a || x>b) {return ;}
if(x>=a && y<=b)
{
lazy[c]=s&lazy[c];
return;
}
prop(c);
update(s,a,b,2*c); update(s,a,b,2*c+1);
p[c]=upval(2*c)&upval(2*c+1);
}
};
vector<int> distribute_candies(vector<int> cc, vector<int> lll, vector<int> rrr, vector<int> vv)
{
ll N,Q; vector<ll> ,L,R,V;
N=cc.size();
Q=lll.size(); REP(i,0,Q) {L.pb((ll) lll[i]); R.pb((ll) rrr[i]); V.pb((ll) vv[i]);}
vector<ll> xx; VV(xx,N,0LL); ST S(xx); ll C=cc[0];
REP(i,0,Q)
{
S.update((ST::LV) ({0,C},V[i]),L[i],R[i]);
}
vector<ll> ans; REP(i,0,N) {ans.pb(S.query(i,i).a);}
return ans;
}