Submission #394104

#	Time	Username	Problem	Language	Result	Execution time	Memory
394104		jeqcho	Fireworks (APIO16_fireworks)	C++17	7 / 100	1 ms	324 KiB

fireworks

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pair<int,int>> vpi;

#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)

#define pb push_back
#define rsz resize
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define fi first
#define se second

int const N=1e2+2;
vpi adj[N];

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n,m;
	cin>>n>>m;
	F0R(i,n+m-1)
	{
		int p,c;
		cin>>p>>c;
		--p;
		adj[i+1].pb({p,c});
		adj[p].pb({i+1,c});
	}
	ll rec=2e18;
	FOR(i,n,n+m)
	{
		ll tar = adj[i].back().se;
		ll cand=0;
		FOR(j,n,n+m)
		{
			cand+=abs(tar-adj[j].back().se);
		}
		rec=min(cand,rec);
	}
	cout<<rec<<'\n';
	return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 19
• Subtask 3: 0 / 29
• Subtask 4: 0 / 45