oj.uz

Submission #464324

# Submission time Handle Problem Language Result Execution time Memory
464324 2021-08-13T00:34:40 Z PedroBigMan Wall (IOI14_wall) C++14
100 / 100
 2122 ms 189864 KB 
#include "wall.h"
/*
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>
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 500000000LL
#define EPS 0.00000001
#define pi 3.14159
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);}} 

vector<ll> op;

pl Reduce()
{
	while(op.size()>2LL)
	{
		ll a = op[op.size()-3]; ll b = op[op.size()-2]; ll c = op[op.size()-1];
		op.pop_back(); op.pop_back(); op.pop_back();
		if(a>0 && b>0) {op.pb(max(a,b)); op.pb(c); continue;}
		if(b>0 && c>0) {op.pb(a); op.pb(max(b,c)); continue;}
		if(a<0 && b<0) {op.pb(max(a,b)); op.pb(c); continue;}
		if(b<0 && c<0) {op.pb(max(a,b)); op.pb(c); continue;}
		if(a>0 && b<0 && c>0)
		{
			if(abs(b)<=abs(a))
			{
				ll endval = max(-b,c);
				op.pb(-1); op.pb(endval);
				continue;
			}
			else if(abs(b)<=abs(c))
			{
				ll endval = c;
				op.pb(-1); op.pb(endval);
				continue;
			}
			else
			{
				op.pb(b); op.pb(max(a,c));
				continue;
			}
		}
		if(a<0 && b>0 && c<0)
		{
			if(abs(b)>=abs(a))
			{
				ll endval = min(b,-c);
				op.pb(-1); op.pb(endval);
				continue;
			}
			else if(abs(b)>=abs(c))
			{
				ll endval = -c;
				op.pb(-1); op.pb(endval);
				continue;
			}
			else
			{
				op.pb(b); op.pb(max(a,c));
				continue;
			}
		}
	}
	op.pb(0LL); op.pb(0LL);
	return {op[0],op[1]};
}

ll Reduce_Max(pl opp)
{
	ll val = abs(opp.ff);
	if(opp.ss>0) {return max(val,opp.ss);}
	else {return min(val,abs(opp.ss));}
}

class ST
{
    public:
    ll N;
    
    class LV //lazy value
    {
        public:
        pl a; //elements are positive if max operation, negative if min operation. 
        LV() {a={1LL,1LL};}
        LV(pl x) {a=x;}
        
        LV operator & (LV X) 
		{
			op[0]=X.a.ff; op[1]=X.a.ss; op[2]=a.ff; op[3]=a.ss;
			LV ANS(Reduce());
			return ANS;
		}
    };
    
	LV neutl;
    
    vector<LV> lazy;
    vector<pl> range;
    
    ST() {N=0LL;}
    ST(ll n)
    {
        N = (ll) 1<<(ll) ceil(log2(n));
        REP(i,0,2*N) {range.pb(mp(0LL,0LL));}
        REP(i,0,N) {range[i+N]=mp(i,i);}
        ll cur = N-1;
        while(cur>0)
        {
            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;
    }
    
    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);
    }
	
	vector<ll> eject(ll S) //range [a,b], current node. initially: query(a,b)
    {
        REP(c,1LL,N) {prop(c);}
		vector<ll> ans; REP(i,N,N+S) {ans.pb(Reduce_Max(lazy[i].a));}
		return ans;
    }
};

void buildWall(int N, int K, int oper[], int left[], int right[], int height[], int finalHeight[])
{
	REP(i,0,4) {op.pb(0LL);}
	ST S(N); S.update((pl) {1,-1},0,N-1);
	REP(i,0,K)
	{
		if(oper[i]==1)
		{
			S.update((pl) {height[i]+1,1},left[i],right[i]);
		}
		else
		{
			S.update((pl) {-(height[i]+1),1},left[i],right[i]);
		}
	}
	vector<ll> ans = S.eject(N);
	REP(i,0,N) {finalHeight[i]=ans[i]-1;}
	return;
}

Compilation message

wall.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("O3")
      | 
wall.cpp:7: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    7 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 3 ms 332 KB Output is correct
3 Correct 4 ms 332 KB Output is correct
4 Correct 16 ms 1740 KB Output is correct
5 Correct 15 ms 1612 KB Output is correct
6 Correct 15 ms 1616 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 172 ms 8032 KB Output is correct
3 Correct 483 ms 6056 KB Output is correct
4 Correct 1491 ms 18588 KB Output is correct
5 Correct 761 ms 28704 KB Output is correct
6 Correct 753 ms 27124 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 3 ms 332 KB Output is correct
3 Correct 3 ms 372 KB Output is correct
4 Correct 15 ms 1616 KB Output is correct
5 Correct 12 ms 1616 KB Output is correct
6 Correct 12 ms 1616 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 175 ms 8072 KB Output is correct
9 Correct 487 ms 6100 KB Output is correct
10 Correct 1524 ms 18524 KB Output is correct
11 Correct 749 ms 28700 KB Output is correct
12 Correct 757 ms 27176 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 180 ms 13928 KB Output is correct
15 Correct 84 ms 3896 KB Output is correct
16 Correct 1565 ms 28152 KB Output is correct
17 Correct 745 ms 27576 KB Output is correct
18 Correct 742 ms 27600 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 3 ms 332 KB Output is correct
4 Correct 15 ms 1616 KB Output is correct
5 Correct 12 ms 1612 KB Output is correct
6 Correct 13 ms 1688 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 172 ms 8032 KB Output is correct
9 Correct 512 ms 6212 KB Output is correct
10 Correct 1489 ms 18524 KB Output is correct
11 Correct 755 ms 28616 KB Output is correct
12 Correct 765 ms 27048 KB Output is correct
13 Correct 0 ms 296 KB Output is correct
14 Correct 179 ms 13892 KB Output is correct
15 Correct 85 ms 3868 KB Output is correct
16 Correct 1602 ms 28148 KB Output is correct
17 Correct 762 ms 27636 KB Output is correct
18 Correct 819 ms 27556 KB Output is correct
19 Correct 2122 ms 189732 KB Output is correct
20 Correct 2120 ms 189736 KB Output is correct
21 Correct 2061 ms 189740 KB Output is correct
22 Correct 2041 ms 189748 KB Output is correct
23 Correct 2020 ms 189864 KB Output is correct
24 Correct 2044 ms 189736 KB Output is correct
25 Correct 2099 ms 189788 KB Output is correct
26 Correct 2085 ms 189732 KB Output is correct
27 Correct 2107 ms 189732 KB Output is correct
28 Correct 2045 ms 189732 KB Output is correct
29 Correct 2041 ms 189736 KB Output is correct
30 Correct 2029 ms 189752 KB Output is correct