oj.uz

Submission #304834

# Submission time Handle Problem Language Result Execution time Memory
304834 2020-09-22T01:20:08 Z arthur_nascimento Comparing Plants (IOI20_plants) C++14
44 / 100
 1678 ms 34364 KB 
#include "plants.h"
#include <bits/stdc++.h>
using namespace std;

#define maxn 200200
#define inf 1000000
#define pii pair<int,int>
#define debug 
#define pb push_back

int N,K;

int T[4*maxn];
int id[4*maxn];
int lazy[8*maxn];

int H[2][maxn];

void refresh(int ini,int fim,int p){
	lazy[2*p] += lazy[p];
	lazy[2*p+1] += lazy[p];
	T[p] -= lazy[p];
	lazy[p] = 0;
}

void upd(int ini,int fim,int p,int pos,int val){
	refresh(ini,fim,p);
	if(pos < ini || pos > fim) return;
	if(ini == fim){
		T[p] = val;
		id[p] = pos;
		return;
	}
	int mid = (ini+fim)/2;
	upd(ini,mid,2*p,pos,val);
	upd(mid+1,fim,2*p+1,pos,val);

	if(T[2*p] < T[2*p+1]){
		T[p] = T[2*p];
		id[p] = id[2*p];
	}
	else {
		T[p] = T[2*p+1];
		id[p] = id[2*p+1];
	}
}

void dec(int ini,int fim,int p,int l,int r){
	refresh(ini,fim,p);
	if(l > fim || r < ini)
		return;
	if(ini >= l && fim <= r){
		lazy[p]++;
		refresh(ini,fim,p);
		return;
	}

	int mid = (ini+fim)/2;

	dec(ini,mid,2*p,l,r);
	dec(mid+1,fim,2*p+1,l,r);

	if(T[2*p] < T[2*p+1]){
		T[p] = T[2*p];
		id[p] = id[2*p];
	}
	else {
		T[p] = T[2*p+1];
		id[p] = id[2*p+1];
	}
	
}

vector<int> zeroes(){
	vector<int> ret;
	while(T[1] == 0){
		int pos = id[1];
		ret.pb(pos);
		upd(0,N-1,1,pos,inf);
	}
	return ret;
}

set<pii> S;
set<pii> Si;

set<int> Sgg;

pii rev(pii a){
	return {a.second,a.first};
}

void add(int x){

	debug("add %d:\n",x);

	if(S.size() == 0){
		S.insert({x,N});
		Si.insert({N,x});
		if(N >= K) Sgg.insert(x);
		return;
	}
	
	pii nx;
	if(S.lower_bound({x,inf}) != S.end())
		nx = *S.lower_bound({x,inf});
	else {
		nx = *S.begin();
	}
	
	pii lst;
	if(S.lower_bound({x,inf}) != S.begin())
		lst = *--S.lower_bound({x,inf});
	else {
		lst = *--S.end();
		lst.first -= N;
	}

	debug(" -(%d,%d)\n",nx.first,nx.second);
	S.erase(S.find(nx));
	Si.erase(Si.find(rev(nx)));
	if(Sgg.find(nx.first) != Sgg.end())
		Sgg.erase(Sgg.find(nx.first));

	if(nx.first < x)
		nx.first += N;

	debug(" +(%d,%d)\n",nx.first%N,nx.first-x);
	S.insert({nx.first%N,nx.first-x});
	if(nx.first-x >= K)
		Sgg.insert(nx.first%N);
	Si.insert({nx.first-x,nx.first%N});
	debug(" +(%d,%d)\n",x,x-lst.first);
	S.insert({x,x-lst.first});
	if(x-lst.first >= K)
		Sgg.insert(x);
	Si.insert({x-lst.first,x});
	debug("\n\n");
}

void rem(int x){

	debug("rem %d:\n",x);

	if(S.size() == 1){
		S.clear();
		Si.clear();
		Sgg.clear();
		return;
	}

	pii it = *S.lower_bound({x,-1});
	

	pii nx;
	if(S.lower_bound({x,inf}) != S.end())
		nx = *S.lower_bound({x,inf});
	else
		nx = *S.begin();

	debug(" -(%d,%d)\n",it.first,it.second);
	debug(" -(%d,%d)\n",nx.first,nx.second);
	S.erase(S.find(it));
	Si.erase(Si.find(rev(it)));
	if(Sgg.find(it.first) != Sgg.end())
		Sgg.erase(Sgg.find(it.first));
		
	S.erase(S.find(nx));
	Si.erase(Si.find(rev(nx)));
	if(Sgg.find((nx.first)) != Sgg.end())
		Sgg.erase(Sgg.find(nx.first));

	debug(" +(%d,%d)\n",nx.first,nx.second+it.second);
	S.insert({nx.first,nx.second+it.second});
	Si.insert({nx.second+it.second,nx.first});

	if(nx.second+it.second >= K)
		Sgg.insert(nx.first);
	
}

int X,FX;
int consX;

int acha(){
	debug("tem %d\n",(int)S.size());

	return *Sgg.begin();

	if(FX){

		if(consX)
			return *Sgg.begin();

		else
			return *--Sgg.end();
		
	}
	
	if(Si.size() == 1 || FX)
		return (--Si.end()) -> second;
	
	int ret = (--Si.end()) -> second;

	if(FX == 0 && ret == X && S.size() > 1){
		pii retret = *----Si.end();
		if(retret.first >= K)
			return retret.second;
	}

	return ret;
}

void go(int n, int k, int x, vector<int> r,int fastx){

	S.clear();
	Si.clear();
	
	N = n;
	X = x;
	FX = fastx;
	K = k;

	consX = 1;

	for(int i=0;i<n;i++)
		upd(0,N-1,1,i,r[i]);

	int foi = 0;
	
	while(foi < n){

		vector<int> v = zeroes();

		for(int i : v){
			add(i);
			if(i == x) consX = 0;
		}

		int id = acha();

		rem(id);

		debug("pega %d\n",id);

		H[fastx][id] = n-foi;
		foi++;

		dec(0,N-1,1,max(0,id-k+1),id-1);

		if(id-k+1 < 0)

			dec(0,N-1,1,id-k+1+N,N-1);

		
			
	}
	

}

void init(int k, std::vector<int> r) {
	go(r.size(), k, 0, r, 0);
	go(r.size(), k, 0, r, 1);
	return;
}

int compare_plants(int x, int y) {
	int ans = 0;
	if(H[0][x] > H[0][y])
		ans++;
	else ans--;
	if(H[1][x] > H[1][y])
		ans++;
	else ans--;
	return ans/2;
}

Compilation message

plants.cpp: In function 'void add(int)':
plants.cpp:95:8: warning: left operand of comma operator has no effect [-Wunused-value]
   95 |  debug("add %d:\n",x);
      |        ^~~~~~~~~~~
plants.cpp:119:8: warning: left operand of comma operator has no effect [-Wunused-value]
  119 |  debug(" -(%d,%d)\n",nx.first,nx.second);
      |        ^~~~~~~~~~~~~
plants.cpp:119:25: warning: right operand of comma operator has no effect [-Wunused-value]
  119 |  debug(" -(%d,%d)\n",nx.first,nx.second);
      |                      ~~~^~~~~
plants.cpp:128:8: warning: left operand of comma operator has no effect [-Wunused-value]
  128 |  debug(" +(%d,%d)\n",nx.first%N,nx.first-x);
      |        ^~~~~~~~~~~~~
plants.cpp:128:30: warning: right operand of comma operator has no effect [-Wunused-value]
  128 |  debug(" +(%d,%d)\n",nx.first%N,nx.first-x);
      |                      ~~~~~~~~^~
plants.cpp:133:8: warning: left operand of comma operator has no effect [-Wunused-value]
  133 |  debug(" +(%d,%d)\n",x,x-lst.first);
      |        ^~~~~~~~~~~~~
plants.cpp:133:30: warning: right operand of comma operator has no effect [-Wunused-value]
  133 |  debug(" +(%d,%d)\n",x,x-lst.first);
      |                              ^~~~~
plants.cpp:138:8: warning: statement has no effect [-Wunused-value]
  138 |  debug("\n\n");
      |       ~^~~~~~~
plants.cpp: In function 'void rem(int)':
plants.cpp:143:8: warning: left operand of comma operator has no effect [-Wunused-value]
  143 |  debug("rem %d:\n",x);
      |        ^~~~~~~~~~~
plants.cpp:161:8: warning: left operand of comma operator has no effect [-Wunused-value]
  161 |  debug(" -(%d,%d)\n",it.first,it.second);
      |        ^~~~~~~~~~~~~
plants.cpp:161:25: warning: right operand of comma operator has no effect [-Wunused-value]
  161 |  debug(" -(%d,%d)\n",it.first,it.second);
      |                      ~~~^~~~~
plants.cpp:162:8: warning: left operand of comma operator has no effect [-Wunused-value]
  162 |  debug(" -(%d,%d)\n",nx.first,nx.second);
      |        ^~~~~~~~~~~~~
plants.cpp:162:25: warning: right operand of comma operator has no effect [-Wunused-value]
  162 |  debug(" -(%d,%d)\n",nx.first,nx.second);
      |                      ~~~^~~~~
plants.cpp:173:8: warning: left operand of comma operator has no effect [-Wunused-value]
  173 |  debug(" +(%d,%d)\n",nx.first,nx.second+it.second);
      |        ^~~~~~~~~~~~~
plants.cpp:173:25: warning: right operand of comma operator has no effect [-Wunused-value]
  173 |  debug(" +(%d,%d)\n",nx.first,nx.second+it.second);
      |                      ~~~^~~~~
plants.cpp: In function 'int acha()':
plants.cpp:186:8: warning: left operand of comma operator has no effect [-Wunused-value]
  186 |  debug("tem %d\n",(int)S.size());
      |        ^~~~~~~~~~
plants.cpp: In function 'void go(int, int, int, std::vector<int>, int)':
plants.cpp:244:9: warning: left operand of comma operator has no effect [-Wunused-value]
  244 |   debug("pega %d\n",id);
      |         ^~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Incorrect 1 ms 384 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 91 ms 3576 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 92 ms 3576 KB Output is correct
11 Correct 96 ms 3720 KB Output is correct
12 Correct 85 ms 3704 KB Output is correct
13 Correct 89 ms 3576 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 91 ms 3576 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 92 ms 3576 KB Output is correct
11 Correct 96 ms 3720 KB Output is correct
12 Correct 85 ms 3704 KB Output is correct
13 Correct 89 ms 3576 KB Output is correct
14 Correct 164 ms 4700 KB Output is correct
15 Correct 1239 ms 15076 KB Output is correct
16 Correct 164 ms 4572 KB Output is correct
17 Correct 1287 ms 14976 KB Output is correct
18 Correct 1658 ms 24756 KB Output is correct
19 Correct 745 ms 14888 KB Output is correct
20 Correct 1082 ms 14952 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 80 ms 3320 KB Output is correct
4 Correct 1128 ms 21556 KB Output is correct
5 Correct 1282 ms 16232 KB Output is correct
6 Correct 1396 ms 15208 KB Output is correct
7 Correct 1431 ms 14980 KB Output is correct
8 Correct 1310 ms 15080 KB Output is correct
9 Correct 1292 ms 19836 KB Output is correct
10 Correct 1263 ms 16360 KB Output is correct
11 Correct 1494 ms 34364 KB Output is correct
12 Correct 649 ms 14948 KB Output is correct
13 Correct 1678 ms 28516 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Incorrect 1 ms 512 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Incorrect 1 ms 384 KB Output isn't correct
5 Halted 0 ms 0 KB -