oj.uz

Submission #922553

# Submission time Handle Problem Language Result Execution time Memory
922553 2024-02-05T16:34:19 Z KiaRez Passport (JOI23_passport) C++17
48 / 100
 2000 ms 994272 KB 
/*
    IN THE NAME OF GOD
*/
#include <bits/stdc++.h>

// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef long double ld;

#define F                                      first
#define S                                      second
#define Mp                                     make_pair
#define pb                                     push_back
#define pf                                     push_front
#define size(x)                                ((ll)x.size())
#define all(x)                                 (x).begin(),(x).end()
#define kill(x)		                           cout << x << '\n', exit(0);
#define fuck(x)                                cout << "(" << #x << " , " << x << ")" << endl
#define endl                                   '\n'

const int N = 3e5+23, lg = 18;
ll Mod = 1e9+7; //998244353;

inline ll MOD(ll a, ll mod=Mod) {a%=mod; (a<0)&&(a+=mod); return a;}
inline ll poww(ll a, ll b, ll mod=Mod) {
    ll ans = 1;
    a=MOD(a, mod);
    while (b) {
        if (b & 1) ans = MOD(ans*a, mod);
        b >>= 1;
        a = MOD(a*a, mod);
    }
    return ans;
}

ll n, q, dist[3][5*N], vis[3][5*N], x[N], id[2*N], L[N], R[N], cnt;
vector<pll> adj[5*N];
vector<vector<int>> vec[N];

void build(int ind=1) {
	id[ind] = ++cnt;
	if(ind>=(1<<lg)) {
		int f = ind - (1<<lg) + 1;
		if(f<=n) adj[f].pb({id[ind], 0});
		return;
	}
	build(2*ind); build(2*ind+1);
	adj[id[2*ind+1]].pb({id[ind], 0});
	adj[id[2*ind]].pb({id[ind], 0});
}

void query(int v, int l, int r, int ind=1, int lc=1, int rc=(1<<lg)+1) {
	if(l>=rc || lc>=r) return;
	if(lc>=l && rc<=r) {
		adj[id[ind]].pb({v, 1});
		return;
	}
	int mid = (lc+rc)/2;
	query(v, l, r, 2*ind, lc, mid);
	query(v, l, r, 2*ind+1, mid, rc);
}

int main () {
	ios_base::sync_with_stdio(false), cin.tie(0);

	cin>>n;
	cnt=n;
	for(int i=1; i<=n; i++) cin>>L[i]>>R[i];
	cin>>q;
	for(int i=1; i<=q; i++) cin>>x[i];

	build(1);
	for(int i=1; i<=n; i++) {
		query(i, L[i], i);
		query(i, i+1, R[i]+1);
	}

	int ptr = 0;
	//priority_queue<vector<int>, vector<vector<int>>, greater<vector<int>>> pq;
	//pq.push({0, 0, 1});
	//pq.push({0, 1, n});
	vec[0].pb({0, 0, 1});
	vec[0].pb({0, 1, n});
	while(ptr<N) {
		if(size(vec[ptr]) == 0) {
			ptr++; continue;
		}
		vector<int> v = vec[ptr].back();
		vec[ptr].pop_back();
		if(vis[v[1]][v[2]] == 1) continue;
		vis[v[1]][v[2]] = 1, dist[v[1]][v[2]] = v[0];
	if(vis[1][v[2]]==1 && vis[0][v[2]]==1) {
		vec[dist[1][v[2]]+dist[0][v[2]]-(v[2]>1&&v[2]<n)].pb({dist[1][v[2]]+dist[0][v[2]]-(v[2]>1&&v[2]<n), 2, v[2]});
	}
		for(auto it : adj[v[2]]) {
			vec[v[0]+it.S].pb({v[0]+it.S, v[1], it.F});
		}
	}
	
	for(int i=1; i<=q; i++) {
		if(vis[2][x[i]] == 1) cout<<dist[2][x[i]]<<endl;
		else cout<<-1<<endl;
	}

	return 0;
}

Compilation message

passport.cpp: In function 'int main()':
passport.cpp:90:19: warning: narrowing conversion of 'n' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing]
   90 |  vec[0].pb({0, 1, n});
      |                   ^
passport.cpp:90:19: warning: narrowing conversion of 'n' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing]
passport.cpp:100:84: warning: narrowing conversion of '((dist[1][v.std::vector<int>::operator[](2)] + dist[0][v.std::vector<int>::operator[](2)]) - ((ll)((int)((v.std::vector<int>::operator[](2) > 1) && (((ll)v.std::vector<int>::operator[](2)) < n)))))' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing]
  100 |   vec[dist[1][v[2]]+dist[0][v[2]]-(v[2]>1&&v[2]<n)].pb({dist[1][v[2]]+dist[0][v[2]]-(v[2]>1&&v[2]<n), 2, v[2]});
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
passport.cpp:100:84: warning: narrowing conversion of '((dist[1][v.std::vector<int>::operator[](2)] + dist[0][v.std::vector<int>::operator[](2)]) - ((ll)((int)((v.std::vector<int>::operator[](2) > 1) && (((ll)v.std::vector<int>::operator[](2)) < n)))))' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing]
passport.cpp:103:27: warning: narrowing conversion of '(((long long int)v.std::vector<int>::operator[](0)) + it.std::pair<long long int, long long int>::second)' from 'long long int' to 'int' [-Wnarrowing]
  103 |    vec[v[0]+it.S].pb({v[0]+it.S, v[1], it.F});
passport.cpp:103:27: warning: narrowing conversion of '(((long long int)v.std::vector<int>::operator[](0)) + it.std::pair<long long int, long long int>::second)' from 'long long int' to 'int' [-Wnarrowing]
passport.cpp:17:48: warning: narrowing conversion of 'it.std::pair<long long int, long long int>::first' from 'long long int' to 'int' [-Wnarrowing]
   17 | #define F                                      first
      |                                                ^
passport.cpp:103:43: note: in expansion of macro 'F'
  103 |    vec[v[0]+it.S].pb({v[0]+it.S, v[1], it.F});
      |                                           ^
passport.cpp:17:48: warning: narrowing conversion of 'it.std::pair<long long int, long long int>::first' from 'long long int' to 'int' [-Wnarrowing]
   17 | #define F                                      first
      |                                                ^
passport.cpp:103:43: note: in expansion of macro 'F'
  103 |    vec[v[0]+it.S].pb({v[0]+it.S, v[1], it.F});
      |                                           ^

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 76376 KB Output is correct
2 Correct 46 ms 76376 KB Output is correct
3 Correct 38 ms 76540 KB Output is correct
4 Execution timed out 2140 ms 994272 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 76372 KB Output is correct
2 Correct 38 ms 76624 KB Output is correct
3 Correct 40 ms 76376 KB Output is correct
4 Correct 42 ms 76380 KB Output is correct
5 Correct 44 ms 76740 KB Output is correct
6 Correct 39 ms 76380 KB Output is correct
7 Correct 38 ms 76564 KB Output is correct
8 Correct 39 ms 76368 KB Output is correct
9 Correct 39 ms 76372 KB Output is correct
10 Correct 38 ms 76372 KB Output is correct
11 Correct 45 ms 77012 KB Output is correct
12 Correct 40 ms 76636 KB Output is correct
13 Correct 43 ms 76892 KB Output is correct
14 Correct 41 ms 76852 KB Output is correct
15 Correct 43 ms 76532 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 76372 KB Output is correct
2 Correct 38 ms 76624 KB Output is correct
3 Correct 40 ms 76376 KB Output is correct
4 Correct 42 ms 76380 KB Output is correct
5 Correct 44 ms 76740 KB Output is correct
6 Correct 39 ms 76380 KB Output is correct
7 Correct 38 ms 76564 KB Output is correct
8 Correct 39 ms 76368 KB Output is correct
9 Correct 39 ms 76372 KB Output is correct
10 Correct 38 ms 76372 KB Output is correct
11 Correct 45 ms 77012 KB Output is correct
12 Correct 40 ms 76636 KB Output is correct
13 Correct 43 ms 76892 KB Output is correct
14 Correct 41 ms 76852 KB Output is correct
15 Correct 43 ms 76532 KB Output is correct
16 Correct 56 ms 82440 KB Output is correct
17 Correct 49 ms 78948 KB Output is correct
18 Correct 60 ms 80368 KB Output is correct
19 Correct 58 ms 80412 KB Output is correct
20 Correct 49 ms 78012 KB Output is correct
21 Correct 47 ms 77904 KB Output is correct
22 Correct 54 ms 80080 KB Output is correct
23 Correct 52 ms 81020 KB Output is correct
24 Correct 50 ms 80136 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 76372 KB Output is correct
2 Correct 38 ms 76624 KB Output is correct
3 Correct 40 ms 76376 KB Output is correct
4 Correct 42 ms 76380 KB Output is correct
5 Correct 44 ms 76740 KB Output is correct
6 Correct 39 ms 76380 KB Output is correct
7 Correct 38 ms 76564 KB Output is correct
8 Correct 39 ms 76368 KB Output is correct
9 Correct 39 ms 76372 KB Output is correct
10 Correct 38 ms 76372 KB Output is correct
11 Correct 45 ms 77012 KB Output is correct
12 Correct 40 ms 76636 KB Output is correct
13 Correct 43 ms 76892 KB Output is correct
14 Correct 41 ms 76852 KB Output is correct
15 Correct 43 ms 76532 KB Output is correct
16 Correct 56 ms 82440 KB Output is correct
17 Correct 49 ms 78948 KB Output is correct
18 Correct 60 ms 80368 KB Output is correct
19 Correct 58 ms 80412 KB Output is correct
20 Correct 49 ms 78012 KB Output is correct
21 Correct 47 ms 77904 KB Output is correct
22 Correct 54 ms 80080 KB Output is correct
23 Correct 52 ms 81020 KB Output is correct
24 Correct 50 ms 80136 KB Output is correct
25 Correct 40 ms 76372 KB Output is correct
26 Correct 47 ms 76360 KB Output is correct
27 Correct 57 ms 82436 KB Output is correct
28 Correct 54 ms 78984 KB Output is correct
29 Correct 49 ms 77968 KB Output is correct
30 Correct 48 ms 77736 KB Output is correct
31 Correct 53 ms 79344 KB Output is correct

Subtask #5
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 76376 KB Output is correct
2 Correct 46 ms 76376 KB Output is correct
3 Correct 38 ms 76540 KB Output is correct
4 Execution timed out 2140 ms 994272 KB Time limit exceeded
5 Halted 0 ms 0 KB -