oj.uz

Submission #536791

# Submission time Handle Problem Language Result Execution time Memory
536791 2022-03-14T03:38:30 Z kym Railway Trip 2 (JOI22_ho_t4) C++14
8 / 100
 2000 ms 524288 KB 
#include <bits/stdc++.h>
using namespace std;
#define int ll 
#define FOR(i,s,e) for(ll i = s; i <= (ll)e; ++i)
#define DEC(i,s,e) for(ll i = s; i >= (ll)e; --i)
#define IAMSPEED ios_base::sync_with_stdio(false); cin.tie(0);
#ifdef LOCAL
#define db(x) cerr << #x << "=" << x << "\n"
#define db2(x, y) cerr << #x << "=" << x << " , " << #y << "=" << y << "\n"
#define db3(a,b,c) cerr<<#a<<"="<<a<<","<<#b<<"="<<b<<","<<#c<<"="<<c<<"\n"
#define dbv(v) cerr << #v << ":"; for (auto ite : v) cerr << ite << ' '; cerr <<"\n"
#define dbvp(v) cerr << #v << ":"; for (auto ite : v) cerr << "{"  << ite.f << ',' << ite.s << "} "; cerr << "\n"
#define dba(a,ss,ee) cerr << #a << ":"; FOR(ite,ss,ee) cerr << a[ite] << ' '; cerr << "\n"
#define reach cerr << "LINE: " << __LINE__ << "\n";
#else
#define db(x)
#define db2(x,y)
#define db3(a,b,c)
#define dbv(v)
#define dbvp(v)
#define dba(a,ss,ee)
#define reach 
#endif
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define ll long long 
#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define f first
#define s second
#define g0(x) get<0>(x)
#define g1(x) get<1>(x)
#define g2(x) get<2>(x)
#define g3(x) get<3>(x)
typedef pair <ll, ll> pi;
typedef tuple<ll,ll,ll> ti3;
typedef tuple<ll,ll,ll,ll> ti4;
ll rand(ll a, ll b) { return a + rng() % (b-a+1); }
const int MOD = 1e9 + 7;
const int inf = (int)1e9 + 500;
const long long oo = (ll)1e18 + 500;
template <typename T> void chmax(T& a, const T b) { a=max(a,b); }
template <typename T> void chmin(T& a, const T b) { a=min(a,b); }
const int MAXN = -1;

int n,k,m;

int32_t main() 
{
	IAMSPEED
	cin >> n >> k >> m;
	int dist[n+5];
	vector<int> V[n+5];
	pi A[m+5];
	FOR(i,1,m) {
		cin >> A[i].f >> A[i].s;
	}
	FOR(i,1,n) {
		int en=0,st=n+1;
		FOR(x,1,m) {
			if(A[x].f < A[x].s) {
				if(A[x].f <= i && A[x].f + k - 1 >= i)chmax(en,A[x].s);
			} else {
				if(A[x].f-k+1 <= i && A[x].f >= i)chmin(st,A[x].s);
			}
		}
		//we get min and max for this start point.
		FOR(j,1,n) {
			if(i==j) {
				continue;
			}
			if(j<i) {
				if(j>=st)V[i].pb(j);
			} else {
				if(j<=en)V[i].pb(j);
			}
		}
	}

	
	int Q; cin >> Q;
	while(Q--) {
		int a,b; cin >> a >> b;
		memset(dist,-1,sizeof dist);
		queue<int> q;
		dist[a] = 0;
		for(q.push(a);q.size();q.pop()) {
			int x = q.front();
			for(auto v:V[x]){
				if(dist[v] == -1 || dist[v]  > dist[x] + 1) {
					dist[v] = dist[x] + 1;
					q.push(v);
				}
			}
		}
		
		cout << dist[b] << '\n';
	}
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 468 KB Output is correct
2 Correct 12 ms 572 KB Output is correct
3 Correct 2 ms 724 KB Output is correct
4 Correct 12 ms 920 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 44 ms 1492 KB Output is correct
7 Correct 39 ms 1364 KB Output is correct
8 Correct 2 ms 1492 KB Output is correct
9 Correct 50 ms 1492 KB Output is correct
10 Correct 1 ms 216 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 468 KB Output is correct
2 Correct 12 ms 572 KB Output is correct
3 Correct 2 ms 724 KB Output is correct
4 Correct 12 ms 920 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 44 ms 1492 KB Output is correct
7 Correct 39 ms 1364 KB Output is correct
8 Correct 2 ms 1492 KB Output is correct
9 Correct 50 ms 1492 KB Output is correct
10 Correct 1 ms 216 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Execution timed out 2077 ms 10924 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2065 ms 4756 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 1198 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Runtime error 1225 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 468 KB Output is correct
2 Correct 12 ms 572 KB Output is correct
3 Correct 2 ms 724 KB Output is correct
4 Correct 12 ms 920 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 44 ms 1492 KB Output is correct
7 Correct 39 ms 1364 KB Output is correct
8 Correct 2 ms 1492 KB Output is correct
9 Correct 50 ms 1492 KB Output is correct
10 Correct 1 ms 216 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Execution timed out 2077 ms 10924 KB Time limit exceeded
14 Halted 0 ms 0 KB -