#include<bits/allocator.h>
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,fma,bmi,bmi2,popcnt,lzcnt")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define int128 __int128_t
#define double long double
#define gcd __gcd
#define lcm(a, b) ((a)/gcd(a, b)*(b))
#define sqrt sqrtl
#define log2 log2l
#define log10 log10l
#define floor floorl
#define to_string str
#define yes cout << "YES"
#define no cout << "NO"
#define trav(i, a) for (auto &i: (a))
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define sz(a) (int)a.size()
#define Max(a) *max_element(all(a))
#define Min(a) *min_element(all(a))
#define Find(a, n) (find(all(a), n) - a.begin())
#define Count(a, n) count(all(a), n)
#define Upper(a, n) (upper_bound(all(a), n) - a.begin())
#define Lower(a, n) (lower_bound(all(a), n) - a.begin())
#define next_perm(a) next_permutation(all(a))
#define prev_perm(a) prev_permutation(all(a))
#define sorted(a) is_sorted(all(a))
#define sum(a) accumulate(all(a), 0)
#define sumll(a) accumulate(all(a), 0ll)
#define Sort(a) sort(all(a))
#define Reverse(a) reverse(all(a))
#define Unique(a) Sort(a), (a).resize(unique(all(a)) - a.begin())
#define pb push_back
#define eb emplace_back
#define popcount __builtin_popcount
#define popcountll __builtin_popcountll
#define clz __builtin_clz
#define clzll __buitlin_clzll
#define ctz __builtin_ctz
#define ctzll __builtin_ctzll
#define open(s) freopen(s, "r", stdin)
#define write(s) freopen(s, "w", stdout)
#define fileopen(s) open((string(s) + ".inp").c_str()), write((string(s) + ".out").c_str());
#define For(i, a, b) for (auto i = (a); i < (b); ++i)
#define Fore(i, a, b) for (auto i = (a); i >= (b); --i)
#define FOR(i, a, b) for (auto i = (a); i <= (b); ++i)
#define ret(s) return void(cout << s);
const int mod = 1e9 + 7, mod2 = 998244353;
const double PI = acos(-1), eps = 1e-9;
const ull npos = string::npos;
const int dx[] = {0, 0, -1, 1}, dy[] = {-1, 1, 0, 0};
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using cd = complex<double>;
mt19937 mt(chrono::system_clock::now().time_since_epoch().count());
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<double> vdo;
typedef vector<vdo> vvdo;
typedef vector<string> vs;
typedef vector<pii> vpair;
typedef vector<vpair> vvpair;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<char> vc;
typedef vector<vc> vvc;
typedef vector<cd> vcd;
typedef priority_queue<int> pq;
typedef priority_queue<int, vi, greater<int>> pqg;
typedef priority_queue<ll> pqll;
typedef priority_queue<ll, vll, greater<ll>> pqgll;
ll add(ll a, ll b, int m) {if (a >= m) a%=m;if (b >= m) b%=m;a+=b;return a >= m ? a - m: a;}
ll sub(ll a, ll b, int m) {if (a >= m) a%=m;if (b >= m) b%=m;a-=b;return a < 0 ? a + m: a;}
ll mul(ll a, ll b, int m) {if (a >= m) a%=m;if (b >= m) b%=m;return a*b % m;}
ll bin_mul(ll a, ll b, ll m) {if (a >= m) a%=m;if (b >= m) b%=m;ll x = 0;while (b) {if (b & 1) x = (x + a) % m;a = (a + a) % m;b>>=1;}return x;}
ll bin_pow(ll a, ll b, ll m) {ll x = 1;if (a >= m) a%=m; while (b) {if (b & 1) x = bin_mul(x, a, m);a = bin_mul(a, a, m);b>>=1;}return x;}
ll power(ll a, ll b, int m) {ll x = 1;if (a >= m) a%=m; while (b) {if (b & 1) x = x*a % m;a = a*a % m;b>>=1;}return x;}
ll power(ll a, ll b) {ll x = 1;while (b) {if (b & 1) x = x*a;a = a*a;b>>=1;}return x;}
ll ceil(ll a, ll b) {return (a + b - 1)/b;}
ll to_int(const string &s) {ll x = 0; for (int i = (s[0] == '-'); i < sz(s); ++i) x = x*10 + s[i] - '0';return x*(s[0] == '-' ? -1: 1);}
bool is_prime(ll n) {if (n < 2) return 0;if (n < 4) return 1;if (n % 2 == 0 || n % 3 == 0) return 0;for (ll i = 5; i*i <= n; i+=6) {if(n % i == 0 || n % (i + 2) == 0) return 0;}return 1;}
bool is_square(ll n) {ll k = sqrt(n); return k*k == n;}
ll factorial(int n) {ll x = 1;for (int i = 2; i <= n; ++i) x*=i;return x;}
ll factorial(int n, int m) {ll x = 1;for (ll i = 2; i <= n; ++i) x = x*i % m;return x;}
bool is_power(ll n, ll k) {while (n % k == 0) n/=k;return n == 1ll;}
string str(ll n) {if (n == 0) return "0"; string s = ""; bool c = 0; if (n < 0) c = 1, n = -n; while (n) {s+=n % 10 + '0'; n/=10;} if (c) s+='-'; Reverse(s); return s;}
string repeat(const string &s, int n) {if (n < 0) return ""; string x = ""; while (n--) x+=s; return x;}
string bin(ll n) {string s = ""; while (n) {s+=(n & 1) + '0'; n>>=1;} Reverse(s); return s;}
void sieve(vector<bool> &a) {int n = a.size(); a[0] = a[1] = 0; for (int i = 4; i < n; i+=2) a[i] = 0; for (int i = 3; i*i < n; i+=2) {if (a[i]) {for (int j = i*i; j < n; j+=(i << 1)) a[j] = 0;}}}
void sieve(bool a[], int n) {a[0] = a[1] = 0; for (int i = 4; i < n; i+=2) a[i] = 0; for (int i = 3; i*i < n; i+=2) {if (a[i]) {for (int j = i*i; j < n; j+=(i << 1)) a[j] = 0;}}}
void sieve(vector<int> &a) {int n = a.size(); for (int i = 2; i < n; i+=2) a[i] = 2; for (int i = 3; i*i < n; i+=2) {if (!a[i]) {for (int j = i; j < n; j+=(i << 1)) a[j] = i;}} for (int i = 3; i < n; i+=2) {if (!a[i]) a[i] = i;}}
void sieve(int a[], int n) {for (int i = 2; i < n; i+=2) a[i] = 2; for (int i = 3; i*i < n; i+=2) {if (!a[i]) {for (int j = i; j < n; j+=(i << 1)) a[j] = i;}} for (int i = 3; i < n; i+=2) {if (!a[i]) a[i] = i;}}
vector<pii> factorize(int n) {vector<pii> a; for (int i = 2; i*i <= n; ++i) {if (n % i == 0) {int k = 0; while (n % i == 0) ++k, n/=i; a.emplace_back(i, k);}} if (n > 1) a.emplace_back(n, 1); return a;}
int rand(int l, int r) {return uniform_int_distribution<int>(l, r)(mt);}
int Log2(int n) {return 31 - __builtin_clz(n);}
template<class T> void compress(vector<T> &a) {vector<T> b; for (T &i: a) b.push_back(i); sort(all(b)); b.resize(unique(all(b)) - b.begin()); for (T &i: a) i = lower_bound(all(b), i) - b.begin() + 1;}
template<class A, class B> istream& operator>>(istream& in, pair<A, B> &p) {in >> p.first >> p.second; return in;}
template<class A, class B> ostream& operator<<(ostream& out, const pair<A, B> &p) {out << p.first << ' ' << p.second; return out;}
template<class T> istream& operator>>(istream& in, vector<T> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const vector<T> &a) {for (auto &i: a) out << i << ' '; return out;}
template<class T> istream& operator>>(istream& in, vector<vector<T>> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const vector<vector<T>> &a) {for (auto &i: a) out << i << '\n'; return out;}
template<class T> istream& operator>>(istream& in, deque<T> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const deque<T> &a) {for (auto &i: a) out << i << ' '; return out;}
// istream& operator>>(istream& in, __int128_t &a) {string s; in >> s; a = 0; for (auto &i: s) a = a*10 + (i - '0'); return in;}
// ostream& operator<<(ostream& out, __int128_t a) {string s = ""; while (a > 0) {s+=(int)(a % 10) + '0'; a/=10;} Reverse(s); out << s; return out;}
const int N = 3e5 + 5;
vpair g[5*N];
void build(int x, int l, int r) {
if (l == r) {
g[l + 4*N].eb(x, 0);
return;
}
int m = (l + r) >> 1;
build(x << 1, l, m); build(x << 1|1, m + 1, r);
g[x << 1].eb(x, 0); g[x << 1|1].eb(x, 0);
}
void upd(int x, int lx, int rx, int l, int r, int u) {
if (lx > r || rx < l) return;
if (lx >= l && rx <= r) {
g[x].eb(u + 4*N, 1);
return;
}
int m = (lx + rx) >> 1;
upd(x << 1, lx, m, l, r, u); upd(x << 1|1, m + 1, rx, l, r, u);
}
int f[5*N], h[5*N], t[5*N];
int main() {
ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
cout << fixed << setprecision(10);
int n; cin >> n;
build(1, 1, n);
FOR(i,1,n){
int l, r; cin >> l >> r;
upd(1, 1, n, l, r, i);
}
deque<int> q{4*N + 1};
memset(f, 0x3f, sizeof(f));
f[4*N + 1] = 0;
while (sz(q)) {
int u = q[0]; q.pop_front();
for (auto [v, w]: g[u]) {
if (f[v] > f[u] + w) {
f[v] = f[u] + w;
if (!w) q.push_front(v);
else q.pb(v);
}
}
}
q.pb(4*N + n);
memset(h, 0x3f, sizeof(h));
h[4*N + n] = 0;
while (sz(q)) {
int u = q[0]; q.pop_front();
for (auto [v, w]: g[u]) {
if (h[v] > h[u] + w) {
h[v] = h[u] + w;
if (!w) q.push_front(v);
else q.pb(v);
}
}
}
priority_queue<pii, vpair, greater<pii>> p;
memset(t, 0x3f, sizeof(t));
FOR(i,1,4*N+n) t[i] = min(t[i], f[i] + h[i]), p.emplace(t[i], i);
while (sz(p)) {
auto [x, u] = p.top(); p.pop();
if (t[u] < x) continue;
for (auto [v, w]: g[u]) {
if (t[v] > t[u] + w) t[v] = t[u] + w, p.emplace(t[v], v);
}
}
int _; cin >> _;
while (_--) {
int i; cin >> i;
cout << (t[4*N + i] > n ? -1: t[4*N + i]) << '\n';
}
cerr << "\nProcess returned 0 (0x0) execution time : " << 0.001*clock() << " s";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
126 ms |
69828 KB |
Output is correct |
| 2 |
Correct |
136 ms |
69828 KB |
Output is correct |
| 3 |
Correct |
128 ms |
69832 KB |
Output is correct |
| 4 |
Correct |
686 ms |
120356 KB |
Output is correct |
| 5 |
Correct |
419 ms |
100028 KB |
Output is correct |
| 6 |
Correct |
283 ms |
94136 KB |
Output is correct |
| 7 |
Correct |
272 ms |
93620 KB |
Output is correct |
| 8 |
Correct |
214 ms |
98644 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 2 |
Correct |
130 ms |
69828 KB |
Output is correct |
| 3 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 4 |
Correct |
137 ms |
69828 KB |
Output is correct |
| 5 |
Correct |
125 ms |
69824 KB |
Output is correct |
| 6 |
Correct |
131 ms |
69628 KB |
Output is correct |
| 7 |
Correct |
126 ms |
69824 KB |
Output is correct |
| 8 |
Incorrect |
133 ms |
69828 KB |
Output isn't correct |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 2 |
Correct |
130 ms |
69828 KB |
Output is correct |
| 3 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 4 |
Correct |
137 ms |
69828 KB |
Output is correct |
| 5 |
Correct |
125 ms |
69824 KB |
Output is correct |
| 6 |
Correct |
131 ms |
69628 KB |
Output is correct |
| 7 |
Correct |
126 ms |
69824 KB |
Output is correct |
| 8 |
Incorrect |
133 ms |
69828 KB |
Output isn't correct |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 2 |
Correct |
130 ms |
69828 KB |
Output is correct |
| 3 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 4 |
Correct |
137 ms |
69828 KB |
Output is correct |
| 5 |
Correct |
125 ms |
69824 KB |
Output is correct |
| 6 |
Correct |
131 ms |
69628 KB |
Output is correct |
| 7 |
Correct |
126 ms |
69824 KB |
Output is correct |
| 8 |
Incorrect |
133 ms |
69828 KB |
Output isn't correct |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
126 ms |
69828 KB |
Output is correct |
| 2 |
Correct |
136 ms |
69828 KB |
Output is correct |
| 3 |
Correct |
128 ms |
69832 KB |
Output is correct |
| 4 |
Correct |
686 ms |
120356 KB |
Output is correct |
| 5 |
Correct |
419 ms |
100028 KB |
Output is correct |
| 6 |
Correct |
283 ms |
94136 KB |
Output is correct |
| 7 |
Correct |
272 ms |
93620 KB |
Output is correct |
| 8 |
Correct |
214 ms |
98644 KB |
Output is correct |
| 9 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 10 |
Correct |
130 ms |
69828 KB |
Output is correct |
| 11 |
Correct |
127 ms |
69824 KB |
Output is correct |
| 12 |
Correct |
137 ms |
69828 KB |
Output is correct |
| 13 |
Correct |
125 ms |
69824 KB |
Output is correct |
| 14 |
Correct |
131 ms |
69628 KB |
Output is correct |
| 15 |
Correct |
126 ms |
69824 KB |
Output is correct |
| 16 |
Incorrect |
133 ms |
69828 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
