답안 #650212

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
650212	2022-10-12T23:28:37 Z	inksamurai	Go (COCI18_go)	C++17	100 / 100	603 ms	163256 KB

go

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3yqVz8E ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e

int dp[2011][102][102][2];

signed main(){
_3yqVz8E;
	int n,k,m;
	cin>>n>>k>>m;
	using T=pair<int,pii>;
	vec(T) a(m);
	rep(i,m){
		cin>>a[i].fi>>a[i].se.fi>>a[i].se.se;
	}
	sort(a.begin(),a.end());
	const int _til=2001;
	const int inf=1e9;
	rep(i,_til){
		rep(l,m){
			rep(r,m){
				rep(t,2){
					dp[i][l][r][t]=-inf;
				}
			}
		}
	}
	int ans=0;
	rep(j,m){
		int i=abs(k-a[j].fi);
		int now=0;
		if(i<a[j].se.se) now=a[j].se.fi;
		dp[i][j][j][0]=now;
		ans=max(ans,now);
	}
	rep(i,_til){
		rep(l,m){
			rng(r,l,m){
				rep(t,2){
					ans=max(ans,dp[i][l][r][t]);
					int pvt=a[l].fi;
					if(t) pvt=a[r].fi;
					if(l){
						int _dist=abs(pvt-a[l-1].fi);
						if(i+_dist<_til){
							dp[i+_dist][l-1][r][0]=max(dp[i+_dist][l-1][r][0],dp[i][l][r][t]+(i+_dist<a[l-1].se.se?a[l-1].se.fi:0));
						}
					}
					if(r+1<m){
						int _dist=abs(pvt-a[r+1].fi);
						if(i+_dist<_til){
							dp[i+_dist][l][r+1][1]=max(dp[i+_dist][l][r+1][1],dp[i][l][r][t]+(i+_dist<a[r+1].se.se?a[r+1].se.fi:0));
						}
					}
				}
			}
		}
	}
	print(ans);
}

Subtask #1

100.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	13396 KB	Output is correct
2	Correct	13 ms	22996 KB	Output is correct
3	Correct	19 ms	29400 KB	Output is correct
4	Correct	31 ms	39092 KB	Output is correct
5	Correct	132 ms	87464 KB	Output is correct
6	Correct	176 ms	103600 KB	Output is correct
7	Correct	305 ms	119672 KB	Output is correct
8	Correct	341 ms	135800 KB	Output is correct
9	Correct	432 ms	151892 KB	Output is correct
10	Correct	603 ms	163256 KB	Output is correct