oj.uz

Submission #44154

# Submission time Handle Problem Language Result Execution time Memory
44154 2018-03-30T08:50:58 Z faustaadp Fireworks (APIO16_fireworks) C++17
19 / 100
 148 ms 1636 KB 
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n,m,i,ta,a[202020],has,d[330][330];
vector<ll> v[330],w[330];
ll depe(ll aa,ll bb)
{
	if(v[aa].size()==0)
		return bb;
	if(d[aa][bb]==-1)
	{
		d[aa][bb]=0;
		ll ii,jj;
		for(jj=0;jj<v[aa].size();jj++)	
		{
			ll hh=1e18;
			for(ii=0;ii<=bb;ii++)
				hh=min(hh,depe(v[aa][jj],ii)+abs(w[aa][jj]-(bb-ii)));	
			d[aa][bb]+=hh;
		}
	}
	return d[aa][bb];
}
ll hey(ll aa)
{
	ll ii,h=0;
	for(ii=2;ii<=n+m;ii++)
		h+=abs(a[ii]-aa);
	return h;
}
int main()
{
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n>>m;
	for(i=2;i<=n+m;i++)
	{
		cin>>ta>>a[i];
		v[ta].pb(i);
		w[ta].pb(a[i]);
	}
	has=1e18;
	if(n+m<=300)
	{
		memset(d,-1,sizeof(d));
		for(i=0;i<=300;i++)
			has=min(has,depe(1,i));
		//cout<<depe(4,3)<<"\n";
		//cout<<depe(1,14)<<"\n";
		cout<<has<<"\n";
	}
	else
	{
		ll L=0,R=1e9,C1,C2,CC1,CC2;
		while(L<=R)
		{
			C1=L+(R-L)/3;
			C2=R-(R-L)/3;
			CC1=hey(C1);
			CC2=hey(C2);
			if(CC1<CC2)
				R=C2-1;
			else
				L=C1+1;
			has=min(has,min(CC1,CC2));
		}
		cout<<has<<"\n";
	}
}

Compilation message

fireworks.cpp: In function 'long long int depe(long long int, long long int)':
fireworks.cpp:18:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(jj=0;jj<v[aa].size();jj++) 
            ~~^~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 1144 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1252 KB Output is correct
2 Correct 12 ms 1288 KB Output is correct
3 Correct 20 ms 1304 KB Output is correct
4 Correct 29 ms 1304 KB Output is correct
5 Correct 52 ms 1364 KB Output is correct
6 Correct 39 ms 1444 KB Output is correct
7 Correct 46 ms 1444 KB Output is correct
8 Correct 51 ms 1456 KB Output is correct
9 Correct 57 ms 1456 KB Output is correct
10 Correct 65 ms 1632 KB Output is correct
11 Correct 73 ms 1632 KB Output is correct
12 Correct 92 ms 1632 KB Output is correct
13 Correct 85 ms 1632 KB Output is correct
14 Correct 148 ms 1636 KB Output is correct
15 Correct 102 ms 1636 KB Output is correct
16 Correct 144 ms 1636 KB Output is correct
17 Correct 110 ms 1636 KB Output is correct
18 Correct 97 ms 1636 KB Output is correct
19 Correct 95 ms 1636 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 1144 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 1144 KB Output isn't correct
2 Halted 0 ms 0 KB -