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답안 #163334

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
163334 2019-11-12T17:20:30 Z alishahali1382 Pinball (JOI14_pinball) C++14
100 / 100
 302 ms 30764 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O2")
#pragma GCC optimize ("unroll-loops")
//#pragma GCC optimize("no-stack-protector,fast-math")

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<pii, int> piii;
typedef pair<ll, ll> pll;
#define debug(x) cerr<<#x<<'='<<(x)<<endl;
#define debugp(x) cerr<<#x<<"= {"<<(x.first)<<", "<<(x.second)<<"}"<<endl;
#define debug2(x, y) cerr<<"{"<<#x<<", "<<#y<<"} = {"<<(x)<<", "<<(y)<<"}"<<endl;
#define debugv(v) cerr<<#v<<" : ";for (auto x:v) cerr<<x<<' ';cerr<<endl;
#define all(x) x.begin(), x.end()
#define pb push_back
#define kill(x) return cout<<x<<'\n', 0;

const ld eps=1e-7;
const int inf=1000000010;
const ll INF=10000000000000010LL;
const int mod = 1000000007;
const int MAXN = 300010, LOG=20;

struct Segment{
	ll seg[MAXN<<2];
	Segment(){
		memset(seg, 63, sizeof(seg));
	}
	void Set(int id, int tl, int tr, int pos, ll val){
		if (pos<tl || tr<=pos) return ;
		if (tr-tl==1){
			seg[id]=val;
			return ;
		}
		int mid=(tl+tr)>>1;
		Set(id<<1, tl, mid, pos, val);
		Set(id<<1 | 1, mid, tr, pos, val);
		seg[id]=min(seg[id<<1], seg[id<<1 | 1]);
	}
	ll Get(int id, int tl, int tr, int l, int r){
		if (r<=tl || tr<=l) return seg[0];
		if (l<=tl && tr<=r) return seg[id];
		int mid=(tl+tr)>>1;
		return min(Get(id<<1, tl, mid, l, r), Get(id<<1 | 1, mid, tr, l, r));
	}
} Dp1, Dp2;

ll n, m, k, u, v, x, y, t, a, b, ans=INF;
int A[MAXN], B[MAXN], C[MAXN], D[MAXN];
ll dp1[MAXN], dp2[MAXN];
vector<int> comp;

int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	//freopen("input.txt", "r", stdin);
	//freopen("output.txt", "w", stdout);
	cin>>m>>n;
	for (int i=1; i<=m; i++){
		cin>>A[i]>>B[i]>>C[i]>>D[i];
		comp.pb(A[i]);
		comp.pb(B[i]);
		comp.pb(C[i]);
	}
	comp.pb(1);
	comp.pb(n);
	//comp.pb(n+1);
	sort(all(comp));
	comp.resize(unique(all(comp))-comp.begin());
	n=comp.size();
	//debugv(comp)
	for (int i=1; i<=m; i++){
		A[i]=lower_bound(all(comp), A[i])-comp.begin();
		B[i]=lower_bound(all(comp), B[i])-comp.begin();
		C[i]=lower_bound(all(comp), C[i])-comp.begin();
		//cerr<<A[i]<<" "<<C[i]<<' '<<B[i]<<' '<<"  "<<D[i]<<endl;
	}
	
	memset(dp1, 63, sizeof(dp1));
	memset(dp2, 63, sizeof(dp2));
	dp1[0]=0;
	dp2[n-1]=0;
	Dp1.Set(1, 0, n, 0, 0);
	Dp2.Set(1, 0, n, n-1, 0);
	
	for (int i=1; i<=m; i++){
		ll x=Dp1.Get(1, 0, n, A[i], B[i]+1);
		ll y=Dp2.Get(1, 0, n, A[i], B[i]+1);
		ans=min(ans, x+y+D[i]);
		
		if (x+D[i]<dp1[C[i]]){
			//cerr<<"update dp1 : "<<i<<"  "<<C[i]<<' '<<x+D[i]<<endl<<endl;
			dp1[C[i]]=x+D[i];
			Dp1.Set(1, 0, n, C[i], dp1[C[i]]);
		}
		if (y+D[i]<dp2[C[i]]){
			/*
			debug(y)
			cerr<<"update dp2 : "<<i<<"  "<<C[i]<<' '<<y+D[i]<<endl<<endl;
			*/
			dp2[C[i]]=y+D[i];
			Dp2.Set(1, 0, n, C[i], dp2[C[i]]);
		}
	}
	
	if (ans>=INF) ans=-1;
	cout<<ans<<'\n';
	
	return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 23928 KB Output is correct
2 Correct 24 ms 23804 KB Output is correct
3 Correct 21 ms 23800 KB Output is correct
4 Correct 25 ms 23800 KB Output is correct
5 Correct 22 ms 23800 KB Output is correct
6 Correct 22 ms 23800 KB Output is correct
7 Correct 24 ms 23800 KB Output is correct
8 Correct 22 ms 23800 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 23928 KB Output is correct
2 Correct 24 ms 23804 KB Output is correct
3 Correct 21 ms 23800 KB Output is correct
4 Correct 25 ms 23800 KB Output is correct
5 Correct 22 ms 23800 KB Output is correct
6 Correct 22 ms 23800 KB Output is correct
7 Correct 24 ms 23800 KB Output is correct
8 Correct 22 ms 23800 KB Output is correct
9 Correct 25 ms 23900 KB Output is correct
10 Correct 22 ms 23800 KB Output is correct
11 Correct 22 ms 23928 KB Output is correct
12 Correct 22 ms 23800 KB Output is correct
13 Correct 22 ms 23800 KB Output is correct
14 Correct 22 ms 23800 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 23928 KB Output is correct
2 Correct 24 ms 23804 KB Output is correct
3 Correct 21 ms 23800 KB Output is correct
4 Correct 25 ms 23800 KB Output is correct
5 Correct 22 ms 23800 KB Output is correct
6 Correct 22 ms 23800 KB Output is correct
7 Correct 24 ms 23800 KB Output is correct
8 Correct 22 ms 23800 KB Output is correct
9 Correct 25 ms 23900 KB Output is correct
10 Correct 22 ms 23800 KB Output is correct
11 Correct 22 ms 23928 KB Output is correct
12 Correct 22 ms 23800 KB Output is correct
13 Correct 22 ms 23800 KB Output is correct
14 Correct 22 ms 23800 KB Output is correct
15 Correct 22 ms 23928 KB Output is correct
16 Correct 24 ms 23808 KB Output is correct
17 Correct 24 ms 23932 KB Output is correct
18 Correct 23 ms 23932 KB Output is correct
19 Correct 24 ms 23928 KB Output is correct
20 Correct 27 ms 23928 KB Output is correct
21 Correct 23 ms 23928 KB Output is correct
22 Correct 24 ms 23928 KB Output is correct
23 Correct 24 ms 23928 KB Output is correct
24 Correct 53 ms 23928 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 23928 KB Output is correct
2 Correct 24 ms 23804 KB Output is correct
3 Correct 21 ms 23800 KB Output is correct
4 Correct 25 ms 23800 KB Output is correct
5 Correct 22 ms 23800 KB Output is correct
6 Correct 22 ms 23800 KB Output is correct
7 Correct 24 ms 23800 KB Output is correct
8 Correct 22 ms 23800 KB Output is correct
9 Correct 25 ms 23900 KB Output is correct
10 Correct 22 ms 23800 KB Output is correct
11 Correct 22 ms 23928 KB Output is correct
12 Correct 22 ms 23800 KB Output is correct
13 Correct 22 ms 23800 KB Output is correct
14 Correct 22 ms 23800 KB Output is correct
15 Correct 22 ms 23928 KB Output is correct
16 Correct 24 ms 23808 KB Output is correct
17 Correct 24 ms 23932 KB Output is correct
18 Correct 23 ms 23932 KB Output is correct
19 Correct 24 ms 23928 KB Output is correct
20 Correct 27 ms 23928 KB Output is correct
21 Correct 23 ms 23928 KB Output is correct
22 Correct 24 ms 23928 KB Output is correct
23 Correct 24 ms 23928 KB Output is correct
24 Correct 53 ms 23928 KB Output is correct
25 Correct 44 ms 24528 KB Output is correct
26 Correct 81 ms 25588 KB Output is correct
27 Correct 202 ms 28492 KB Output is correct
28 Correct 166 ms 30696 KB Output is correct
29 Correct 143 ms 27252 KB Output is correct
30 Correct 209 ms 30732 KB Output is correct
31 Correct 302 ms 30764 KB Output is correct
32 Correct 295 ms 30568 KB Output is correct
33 Correct 57 ms 25208 KB Output is correct
34 Correct 138 ms 27216 KB Output is correct
35 Correct 207 ms 30696 KB Output is correct
36 Correct 300 ms 30568 KB Output is correct
37 Correct 256 ms 30696 KB Output is correct
38 Correct 251 ms 30696 KB Output is correct