oj.uz

Submission #937474

# Submission time Handle Problem Language Result Execution time Memory
937474 2024-03-04T06:36:14 Z gaga999 Palindromi (COCI22_palindromi) C++17
110 / 110
 229 ms 175608 KB 
#include <cstdio>
#include <stdio.h>
#include <iostream>
#include <math.h>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <algorithm>
#include <utility>
#include <set>
#include <map>
#include <stdlib.h>
#include <cstring>
#include <string.h>
#include <string>
#include <sstream>
#include <assert.h>
#include <climits>
#include <sstream>
#include <numeric>
#include <time.h>
#include <limits.h>
#include <list>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <iomanip>
#include <complex>
#include <chrono>
#include <fstream>
#include <functional>
#include <unistd.h>
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx,avx2,bmi,bmi2,lzcnt,popcnt")
#define lowbit(x) ((x) & -(x))
#define ml(a, b) ((1ll * (a) * (b)) % M)
#define tml(a, b) (a) = ((1ll * (a) * (b)) % M)
#define ad(a, b) ((0ll + (a) + (b)) % M)
#define tad(a, b) (a) = ((0ll + (a) + (b)) % M)
#define mi(a, b) ((0ll + M + (a) - (b)) % M)
#define tmi(a, b) (a) = ((0ll + M + (a) - (b)) % M)
#define tmin(a, b) (a) = min((a), (b))
#define tmax(a, b) (a) = max((a), (b))
#define iter(a) (a).begin(), (a).end()
#define riter(a) (a).rbegin(), (a).rend()
#define init(a, b) memset((a), (b), sizeof(a))
#define cpy(a, b) memcpy((a), (b), sizeof(a))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define pb emplace_back
#define mpr make_pair
#define ls(i) ((i) << 1)
#define rs(i) ((i) << 1 | 1)
#define INF 0x3f3f3f3f
#define NIF 0xc0c0c0c0
#define eps 1e-9
#define F first
#define S second
#define AC cin.tie(0)->sync_with_stdio(0)
using namespace std;
typedef long long llt;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef pair<llt, llt> pll;
typedef complex<double> cd;
// const int M = 998244353;

// random_device rm;
// mt19937 rg(rm());
// default_random_engine rg(rm());
// uniform_int_distribution<int> rd(INT_MIN, INT_MAX);
// uniform_real_distribution<double> rd(0, M_PI);

void db() { cerr << "\n"; }
template <class T, class... U>
void db(T a, U... b) { cerr << a << " ", db(b...); }

inline char gc()
{
    const static int SZ = 1 << 16;
    static char buf[SZ], *p1, *p2;
    if (p1 == p2 && (p2 = buf + fread(p1 = buf, 1, SZ, stdin), p1 == p2))
        return -1;
    return *p1++;
}
void rd() {}
template <typename T, typename... U>
void rd(T &x, U &...y)
{
    x = 0;
    bool f = 0;
    char c = gc();
    while (!isdigit(c))
        f ^= !(c ^ 45), c = gc();
    while (isdigit(c))
        x = (x << 1) + (x << 3) + (c ^ 48), c = gc();
    f && (x = -x), rd(y...);
}

template <typename T>
void prt(T x)
{
    if (x < 0)
        putchar('-'), x = -x;
    if (x > 9)
        prt(x / 10);
    putchar((x % 10) ^ 48);
}

const int N = 1e5 + 5;

struct TR
{
    vector<int> len, kp, bk[2], to[2];
    deque<int> dq;
    int cnt, ln, rn, sz;
    TR() : cnt(2), sz(0)
    {
        len = {-1, 0}, ln = rn = 1; // 0
        kp = bk[0] = bk[1] = to[0] = to[1] = {0, 0};
    }
    void add(int u, int vl)
    {
        len.pb(len[u] + 2);
        to[0].pb(0), to[1].pb(0);
        kp.pb(u ? to[vl][bk[vl][u]] : 1);
        to[vl][u] = cnt++;
    }
    void addr(int vl)
    {
        dq.pb(vl);
        int u;
        if (len[rn] < sz && dq[sz - len[rn] - 1] == vl)
            u = rn;
        else
            u = bk[vl][rn];
        if (!to[vl][u])
        {
            add(u, vl);
            int tp = dq[sz - len[kp.back()]];
            bk[tp].pb(kp.back());
            bk[tp ^ 1].pb(bk[tp ^ 1][kp.back()]);
        }
        rn = to[vl][u];
        if (len[rn] == ++sz)
            ln = rn;
    }
    void addl(int vl)
    {
        int u;
        if (len[ln] < sz && dq[len[ln]] == vl)
            u = ln;
        else
            u = bk[vl][ln];
        dq.push_front(vl);
        if (!to[vl][u])
        {
            add(u, vl);
            int tp = dq[len[kp.back()]];
            bk[tp].pb(kp.back());
            bk[tp ^ 1].pb(bk[tp ^ 1][kp.back()]);
        }
        ln = to[vl][u];
        if (len[ln] == ++sz)
            rn = ln;
    }
} tr[N];

char s[N];
int ds[N];

int f(int x)
{
    return ds[x] == x ? x : ds[x] = f(ds[x]);
}

signed main()
{
    int n, x, y;
    scanf("%d%s", &n, s + 1);
    iota(ds + 1, ds + n + 1, 1);
    for (int i = 1; i <= n; i++)
        tr[i].addl(s[i] - '0');
    for (int i = 1; i < n; i++)
    {
        scanf("%d%d", &x, &y);
        x = f(x), y = f(y);
        if (tr[x].sz > tr[y].sz)
        {
            for (int p = 0; p < tr[y].sz; p++)
                tr[x].addr(tr[y].dq[p]);
            printf("%d\n", tr[ds[y] = x].cnt - 2);
        }
        else
        {
            for (int p = tr[x].sz - 1; p >= 0; p--)
                tr[y].addl(tr[x].dq[p]);
            printf("%d\n", tr[ds[x] = y].cnt - 2);
        }
    }
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:182:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  182 |     scanf("%d%s", &n, s + 1);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:188:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  188 |         scanf("%d%d", &x, &y);
      |         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 102492 KB Output is correct
2 Correct 81 ms 102536 KB Output is correct
3 Correct 80 ms 102484 KB Output is correct
4 Correct 81 ms 102480 KB Output is correct
5 Correct 60 ms 102380 KB Output is correct
6 Correct 89 ms 102496 KB Output is correct
7 Correct 60 ms 102484 KB Output is correct
8 Correct 83 ms 102548 KB Output is correct
9 Correct 78 ms 102480 KB Output is correct
10 Correct 81 ms 102488 KB Output is correct
11 Correct 81 ms 102480 KB Output is correct
12 Correct 79 ms 102480 KB Output is correct
13 Correct 61 ms 102484 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 102492 KB Output is correct
2 Correct 81 ms 102536 KB Output is correct
3 Correct 80 ms 102484 KB Output is correct
4 Correct 81 ms 102480 KB Output is correct
5 Correct 60 ms 102380 KB Output is correct
6 Correct 89 ms 102496 KB Output is correct
7 Correct 60 ms 102484 KB Output is correct
8 Correct 83 ms 102548 KB Output is correct
9 Correct 78 ms 102480 KB Output is correct
10 Correct 81 ms 102488 KB Output is correct
11 Correct 81 ms 102480 KB Output is correct
12 Correct 79 ms 102480 KB Output is correct
13 Correct 61 ms 102484 KB Output is correct
14 Correct 68 ms 102492 KB Output is correct
15 Correct 87 ms 103252 KB Output is correct
16 Correct 80 ms 102992 KB Output is correct
17 Correct 82 ms 103040 KB Output is correct
18 Correct 93 ms 103332 KB Output is correct
19 Correct 82 ms 102996 KB Output is correct
20 Correct 83 ms 103252 KB Output is correct
21 Correct 85 ms 102796 KB Output is correct
22 Correct 93 ms 102804 KB Output is correct
23 Correct 80 ms 102992 KB Output is correct
24 Correct 84 ms 102992 KB Output is correct
25 Correct 90 ms 103252 KB Output is correct
26 Correct 107 ms 102996 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 155 ms 152660 KB Output is correct
2 Correct 151 ms 154476 KB Output is correct
3 Correct 192 ms 152476 KB Output is correct
4 Correct 151 ms 155168 KB Output is correct
5 Correct 157 ms 154960 KB Output is correct
6 Correct 151 ms 153416 KB Output is correct
7 Correct 159 ms 154596 KB Output is correct
8 Correct 145 ms 152628 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 102492 KB Output is correct
2 Correct 81 ms 102536 KB Output is correct
3 Correct 80 ms 102484 KB Output is correct
4 Correct 81 ms 102480 KB Output is correct
5 Correct 60 ms 102380 KB Output is correct
6 Correct 89 ms 102496 KB Output is correct
7 Correct 60 ms 102484 KB Output is correct
8 Correct 83 ms 102548 KB Output is correct
9 Correct 78 ms 102480 KB Output is correct
10 Correct 81 ms 102488 KB Output is correct
11 Correct 81 ms 102480 KB Output is correct
12 Correct 79 ms 102480 KB Output is correct
13 Correct 61 ms 102484 KB Output is correct
14 Correct 68 ms 102492 KB Output is correct
15 Correct 87 ms 103252 KB Output is correct
16 Correct 80 ms 102992 KB Output is correct
17 Correct 82 ms 103040 KB Output is correct
18 Correct 93 ms 103332 KB Output is correct
19 Correct 82 ms 102996 KB Output is correct
20 Correct 83 ms 103252 KB Output is correct
21 Correct 85 ms 102796 KB Output is correct
22 Correct 93 ms 102804 KB Output is correct
23 Correct 80 ms 102992 KB Output is correct
24 Correct 84 ms 102992 KB Output is correct
25 Correct 90 ms 103252 KB Output is correct
26 Correct 107 ms 102996 KB Output is correct
27 Correct 155 ms 152660 KB Output is correct
28 Correct 151 ms 154476 KB Output is correct
29 Correct 192 ms 152476 KB Output is correct
30 Correct 151 ms 155168 KB Output is correct
31 Correct 157 ms 154960 KB Output is correct
32 Correct 151 ms 153416 KB Output is correct
33 Correct 159 ms 154596 KB Output is correct
34 Correct 145 ms 152628 KB Output is correct
35 Correct 67 ms 102480 KB Output is correct
36 Correct 218 ms 159576 KB Output is correct
37 Correct 208 ms 156152 KB Output is correct
38 Correct 216 ms 160736 KB Output is correct
39 Correct 229 ms 159080 KB Output is correct
40 Correct 199 ms 153408 KB Output is correct
41 Correct 210 ms 154996 KB Output is correct
42 Correct 146 ms 152640 KB Output is correct
43 Correct 158 ms 154624 KB Output is correct
44 Correct 164 ms 152260 KB Output is correct
45 Correct 164 ms 153936 KB Output is correct
46 Correct 208 ms 175608 KB Output is correct
47 Correct 204 ms 162152 KB Output is correct