#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//#include "bits_stdc++.h"
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define input(x) scanf("%lld", &x);
#define input2(x, y) scanf("%lld%lld", &x, &y);
#define input3(x, y, z) scanf("%lld%lld%lld", &x, &y, &z);
#define input4(x, y, z, a) scanf("%lld%lld%lld%lld", &x, &y, &z, &a);
#define print(x, y) printf("%lld%c", x, y);
#define show(x) cerr << #x << " is " << x << endl;
#define show2(x,y) cerr << #x << " is " << x << " " << #y << " is " << y << endl;
#define show3(x,y,z) cerr << #x << " is " << x << " " << #y << " is " << y << " " << #z << " is " << z << endl;
#define discretize(x) sort(x.begin(), x.end()); x.erase(unique(x.begin(), x.end()), x.end());
using namespace std;
//using namespace __gnu_pbds;
//#define ordered_set tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
//#define ordered_multiset tree<int, null_type, less_equal<int>, srb_tree_tag, tree_order_statistics_node_update>
typedef long long ll;
typedef long double ld;
typedef pair<ld, ll> pd;
typedef pair<string, ll> psl;
typedef pair<ll, ll> pi;
typedef pair<ll, pi> pii;
ll label = 0;
ll ptr = 0; // dummy start point
ll par[1000005][26], twok[1000005][26];
char node[1000005];
ll depth[1000005];
void TypeLetter(char L)
{
++label;
node[label] = L;
depth[label] = depth[ptr]+1;
twok[label][0] = ptr;
for (ll i=1; i<=20; ++i)
{
if (twok[label][i-1]==0) break;
twok[label][i] = twok[twok[label][i-1]][i-1];
}
par[label][0] = ptr;
ptr = label;
for (ll i=1; i<=20; ++i)
{
if (par[ptr][i-1]==0) break;
par[ptr][i] = par[par[ptr][i-1]][i-1];
}
//show(ptr);
}
void UndoCommands(int U)
{
ll last = ptr;
//show2(U, last);
for (ll k=20; k>=0; --k)
{
if ((U&((1LL<<k)))==0) continue;
ptr = par[ptr][k];
//show2(k, ptr);
}
++label;
node[label] = node[ptr];
depth[label] = depth[ptr];
for (ll i=0; i<26; ++i) twok[label][i] = twok[ptr][i];
ptr= label;
par[ptr][0] = last;
for (ll i=1; i<=20; ++i)
{
if (par[ptr][i-1]==0) break;
par[ptr][i] = par[par[ptr][i-1]][i-1];
}
//show(ptr);
}
char GetLetter(int P)
{
ll finding = ptr;
ll mask = depth[ptr]-P-1;
for (ll k=20; k>=0; --k)
{
if ((mask&((1LL<<k)))==0) continue;
finding = twok[finding][k];
}
//show(finding);
return node[finding];
}
void Init()
{
for (ll i=0; i<=1000000; ++i) for (ll j=0; j<26; ++j) par[i][j] = 0;
for (ll i=0; i<=1000000; ++i) for (ll j=0; j<26; ++j) twok[i][j] = 0;
for (ll i=0; i<=1000000; ++i) depth[i]= 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
69 ms |
262144 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
35 ms |
262144 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
44 ms |
262144 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
34 ms |
262144 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
37 ms |
262144 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
