//#pragma optimization_level 3
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include<bits/stdc++.h>
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>ordset;
*/
#define fr first
#define sc second
#define vec vector
#define pb push_back
#define pii pair<int, int>
#define forn(x,y) for(int x = 1 ; x <= y ; ++x)
#define all(x) (x).begin(),(x).end()
#define debug(x) cout <<"---"<<x<< ' ';
#define fast cin.tie(0);cout.tie(0);cin.sync_with_stdio(0);cout.sync_with_stdio(0);
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
using namespace std;
typedef unsigned long long ll;
typedef unsigned int uint;
typedef pair<ll,ll> pll;
const int nmax = 500005;
const ll linf = LLONG_MAX/2;
const ll mod = 1e9+7;
const int inf = 1e9+7;
int n, q;
int key[nmax];
vec < int > ks[nmax], col[nmax];
int cl[nmax], cr[nmax], pl[nmax], pr[nmax], limitl[nmax], limitr[nmax];
int main(){
cin >> n;
forn(i,n-1){
cin >> key[i];
}
int s, asd;
forn(i,n){
cin >> s;
forn(ii,s){
cin >> asd;
col[asd].pb(i);
ks[i].pb(asd);
}
sort(all(ks[i]));
}
cr[0] = inf;
cl[1] = -1;
cr[n] = inf;
cl[n+1] = -1;
for(int i = 1; i <= n; i++){
cl[i+1] = -1;
cr[i] = inf;
for(int j : col[key[i]]){
if(j > i) cr[i] = min(cr[i],j);
if(j < i+1) cl[i+1] = max(cl[i+1],j);
}
}
for(int i = 1; i <= n; i++){
bool check = true;
int j;
for(j = cl[i] ; check && j <= i && j != -1 ; j++){
if(cr[j] > i)check = false;
}
pl[i] = j - 2;
}
for(int i = 1; i <= n; i++){
bool check = true;
int j;
for(j = cr[i] ; check && j >= i && j != inf ; j--){
if(cl[j] < i)check = false;
}
pr[i] = j + 2;
}
/*cout << "!!!!!\n";
forn(i,n){
cout << i << ' ' << cl[i] << ' ' << cr[i] << '\n';
}
cout << "!!!!!\n";
forn(i,n){
cout << i << ' ' << pl[i] << ' ' << pr[i] << '\n';
}
cout << "!!!!!\n";*/
cin >> q;
while(q--){
int x, y;
cin >> x >> y;
if( x < y){
int p = x + 1;
while(p <= n && pl[p] >= x - 1 )p++;
p--;
cout << ( p >= y ? "YES" : "NO");
if(q != 0)cout << "\n";
}else{
int p = x - 1;
while(p >= 0 && pr[p] <= x + 1)p--;
p++;
cout << ( p <= y ? "YES" : "NO");
if(q != 0)cout << "\n";
}
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
36 ms |
23936 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
36 ms |
23936 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3101 ms |
30456 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
36 ms |
23936 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
