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답안 #380694

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
380694 2021-03-22T19:49:57 Z AmineWeslati Sky Walking (IOI19_walk) C++14
10 / 100
 4000 ms 596104 KB 
//Never stop trying
#include "bits/stdc++.h"
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

typedef long long ll;
typedef string str;
typedef long double ld;
typedef pair<int, int> pi;
#define fi first
#define se second
typedef vector<int> vi;
typedef vector<pi> vpi;
#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)

const int MOD = 1e9 + 7; //998244353
const ll INF = 1e18;
const int MX = 2e5 + 10;
const int nx[4] = {0, 0, 1, -1}, ny[4] = {1, -1, 0, 0}; //right left down up

template<class T> using V = vector<T>;
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
ll cdiv(ll a, ll b) { return a / b + ((a ^ b) > 0 && a % b); } // divide a by b rounded up
//constexpr int log2(int x) { return 31 - __builtin_clz(x); } // floor(log2(x))

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
ll random(ll a, ll b){
    return a + rng() % (b - a + 1);
}
#ifndef LOCAL  
#define cerr if(false) cerr
#endif
#define dbg(x) cerr << #x << " : " << x << endl; 
#define dbgs(x,y) cerr << #x << " : " << x << " / " << #y << " : " << y << endl;
#define dbgv(v) cerr << #v << " : " << "[ "; for(auto it : v) cerr << it << ' '; cerr << ']' << endl;
#define here() cerr << "here" << endl;

void IO() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin); 
    freopen("output.txt", "w", stdout);
#endif
}
/////////////////////////ONLY CLEAN CODES ALLOWED/////////////////////////

#ifndef LOCAL
#include "walk.h"
#endif

int N,M; 
map<ll,vpi>adj[MX];
V<ll> X;

ll weight(int u, int h, ll v, ll hh){
	return abs(X[u]-X[v])+abs(h-hh);
}

ll min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r, vector<int> y, int s, int g) {
	N=sz(x); M=sz(l);
	X.assign(all(x));

	vi vec[N]; 
	FOR(i,0,N) vec[i].pb(0);
	FOR(i,0,M){
		vi v;
		FOR(j,l[i],r[i]+1) if(h[j]>=y[i]) 
			v.pb(j),vec[j].pb(y[i]);
		FOR(j,1,sz(v)){
			adj[v[j]][y[i]].pb({v[j-1],y[i]});
			adj[v[j-1]][y[i]].pb({v[j],y[i]});
		}
	}

	FOR(i,0,N){
		sort(all(vec[i]));
		FOR(j,1,sz(vec[i])){
			adj[i][vec[i][j-1]].pb({i,vec[i][j]});
			adj[i][vec[i][j]].pb({i,vec[i][j-1]});
		}
	}

	priority_queue<pair<ll,pi>,V<pair<ll,pi>>,greater<pair<ll,pi>>>q;
	q.push({0,{s,0}});
	map<int,ll>dist[N];
	dist[s][0]=0;

	while(!q.empty()){
		pair<ll,pi>p=q.top(); q.pop();
		ll d=p.fi; int u=p.se.fi,t=p.se.se;
		if(d>dist[u][t]) continue;
		if(!adj[u].count(t)) continue;

		for(auto it: adj[u][t]){
			int v=it.fi,tt=it.se;
			if(!dist[v].count(tt) || weight(u,t,v,tt)+d<dist[v][tt]){
				dist[v][tt]=weight(u,t,v,tt)+d;
				q.push({dist[v][tt],{v,tt}});
			}
			
		}
	}

	if(!dist[g].count(0)) return -1;
	return dist[g][0];
}	

#ifdef LOCAL
int main() {
    boost; IO();

    /*vi x={0,3,5,7,10,12,14},h={8,7,9,7,6,6,9};
    vi l={0,0,0,2,2,3,4},r={1,2,6,3,6,4,6};
    vi y={1,6,8,1,7,2,5};
    int s=1,g=5;

    cout << min_distance(x,h,l,r,y,s,g) << endl;*/

    /*vi x={0,4,5,6,9},h={6,6,6,6,6};
    vi l={3,1,0},r={4,3,2};
    vi y={1,3,6};
    int s=0,g=4;

    cout << min_distance(x,h,l,r,y,s,g) << endl;*/
    

    return 0;
}
#endif
//Change your approach

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 9 ms 9836 KB Output is correct
6 Correct 7 ms 9856 KB Output is correct
7 Correct 7 ms 9764 KB Output is correct
8 Correct 7 ms 9836 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 8 ms 9836 KB Output is correct
11 Correct 7 ms 9724 KB Output is correct
12 Correct 7 ms 9708 KB Output is correct
13 Correct 7 ms 9708 KB Output is correct
14 Correct 8 ms 9708 KB Output is correct
15 Correct 7 ms 9708 KB Output is correct
16 Correct 7 ms 9708 KB Output is correct
17 Correct 8 ms 9964 KB Output is correct

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 1966 ms 163948 KB Output is correct
4 Correct 1128 ms 189164 KB Output is correct
5 Correct 644 ms 124012 KB Output is correct
6 Correct 2035 ms 111592 KB Output is correct
7 Correct 602 ms 124012 KB Output is correct
8 Correct 2698 ms 208328 KB Output is correct
9 Correct 737 ms 126780 KB Output is correct
10 Correct 1667 ms 255716 KB Output is correct
11 Correct 662 ms 96012 KB Output is correct
12 Correct 316 ms 77804 KB Output is correct
13 Correct 1378 ms 226272 KB Output is correct
14 Execution timed out 4083 ms 30880 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 125 ms 27884 KB Output is correct
2 Execution timed out 4119 ms 596104 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 125 ms 27884 KB Output is correct
2 Execution timed out 4119 ms 596104 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 9 ms 9836 KB Output is correct
6 Correct 7 ms 9856 KB Output is correct
7 Correct 7 ms 9764 KB Output is correct
8 Correct 7 ms 9836 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 8 ms 9836 KB Output is correct
11 Correct 7 ms 9724 KB Output is correct
12 Correct 7 ms 9708 KB Output is correct
13 Correct 7 ms 9708 KB Output is correct
14 Correct 8 ms 9708 KB Output is correct
15 Correct 7 ms 9708 KB Output is correct
16 Correct 7 ms 9708 KB Output is correct
17 Correct 8 ms 9964 KB Output is correct
18 Correct 7 ms 9708 KB Output is correct
19 Correct 7 ms 9708 KB Output is correct
20 Correct 1966 ms 163948 KB Output is correct
21 Correct 1128 ms 189164 KB Output is correct
22 Correct 644 ms 124012 KB Output is correct
23 Correct 2035 ms 111592 KB Output is correct
24 Correct 602 ms 124012 KB Output is correct
25 Correct 2698 ms 208328 KB Output is correct
26 Correct 737 ms 126780 KB Output is correct
27 Correct 1667 ms 255716 KB Output is correct
28 Correct 662 ms 96012 KB Output is correct
29 Correct 316 ms 77804 KB Output is correct
30 Correct 1378 ms 226272 KB Output is correct
31 Execution timed out 4083 ms 30880 KB Time limit exceeded
32 Halted 0 ms 0 KB -