oj.uz

Submission #937475

# Submission time Handle Problem Language Result Execution time Memory
937475 2024-03-04T06:36:51 Z gaga999 Palindromi (COCI22_palindromi) C++17
110 / 110
 218 ms 175572 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;
    inline TR() : cnt(2), sz(0)
    {
        len = {-1, 0}, ln = rn = 1; // 0
        kp = bk[0] = bk[1] = to[0] = to[1] = {0, 0};
    }
    inline 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 67 ms 102500 KB Output is correct
2 Correct 81 ms 102556 KB Output is correct
3 Correct 82 ms 102548 KB Output is correct
4 Correct 86 ms 102564 KB Output is correct
5 Correct 59 ms 102480 KB Output is correct
6 Correct 97 ms 102480 KB Output is correct
7 Correct 65 ms 102556 KB Output is correct
8 Correct 80 ms 102544 KB Output is correct
9 Correct 71 ms 102392 KB Output is correct
10 Correct 87 ms 102480 KB Output is correct
11 Correct 61 ms 102480 KB Output is correct
12 Correct 63 ms 102560 KB Output is correct
13 Correct 63 ms 102480 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 102500 KB Output is correct
2 Correct 81 ms 102556 KB Output is correct
3 Correct 82 ms 102548 KB Output is correct
4 Correct 86 ms 102564 KB Output is correct
5 Correct 59 ms 102480 KB Output is correct
6 Correct 97 ms 102480 KB Output is correct
7 Correct 65 ms 102556 KB Output is correct
8 Correct 80 ms 102544 KB Output is correct
9 Correct 71 ms 102392 KB Output is correct
10 Correct 87 ms 102480 KB Output is correct
11 Correct 61 ms 102480 KB Output is correct
12 Correct 63 ms 102560 KB Output is correct
13 Correct 63 ms 102480 KB Output is correct
14 Correct 61 ms 102488 KB Output is correct
15 Correct 87 ms 103056 KB Output is correct
16 Correct 81 ms 103044 KB Output is correct
17 Correct 92 ms 102996 KB Output is correct
18 Correct 83 ms 103080 KB Output is correct
19 Correct 80 ms 102992 KB Output is correct
20 Correct 92 ms 103036 KB Output is correct
21 Correct 81 ms 102996 KB Output is correct
22 Correct 84 ms 102884 KB Output is correct
23 Correct 85 ms 103016 KB Output is correct
24 Correct 81 ms 103020 KB Output is correct
25 Correct 80 ms 102996 KB Output is correct
26 Correct 83 ms 103288 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 152908 KB Output is correct
2 Correct 156 ms 154664 KB Output is correct
3 Correct 174 ms 152144 KB Output is correct
4 Correct 151 ms 155144 KB Output is correct
5 Correct 167 ms 154960 KB Output is correct
6 Correct 155 ms 153456 KB Output is correct
7 Correct 166 ms 154528 KB Output is correct
8 Correct 162 ms 152460 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 102500 KB Output is correct
2 Correct 81 ms 102556 KB Output is correct
3 Correct 82 ms 102548 KB Output is correct
4 Correct 86 ms 102564 KB Output is correct
5 Correct 59 ms 102480 KB Output is correct
6 Correct 97 ms 102480 KB Output is correct
7 Correct 65 ms 102556 KB Output is correct
8 Correct 80 ms 102544 KB Output is correct
9 Correct 71 ms 102392 KB Output is correct
10 Correct 87 ms 102480 KB Output is correct
11 Correct 61 ms 102480 KB Output is correct
12 Correct 63 ms 102560 KB Output is correct
13 Correct 63 ms 102480 KB Output is correct
14 Correct 61 ms 102488 KB Output is correct
15 Correct 87 ms 103056 KB Output is correct
16 Correct 81 ms 103044 KB Output is correct
17 Correct 92 ms 102996 KB Output is correct
18 Correct 83 ms 103080 KB Output is correct
19 Correct 80 ms 102992 KB Output is correct
20 Correct 92 ms 103036 KB Output is correct
21 Correct 81 ms 102996 KB Output is correct
22 Correct 84 ms 102884 KB Output is correct
23 Correct 85 ms 103016 KB Output is correct
24 Correct 81 ms 103020 KB Output is correct
25 Correct 80 ms 102996 KB Output is correct
26 Correct 83 ms 103288 KB Output is correct
27 Correct 153 ms 152908 KB Output is correct
28 Correct 156 ms 154664 KB Output is correct
29 Correct 174 ms 152144 KB Output is correct
30 Correct 151 ms 155144 KB Output is correct
31 Correct 167 ms 154960 KB Output is correct
32 Correct 155 ms 153456 KB Output is correct
33 Correct 166 ms 154528 KB Output is correct
34 Correct 162 ms 152460 KB Output is correct
35 Correct 60 ms 102484 KB Output is correct
36 Correct 206 ms 159628 KB Output is correct
37 Correct 204 ms 156136 KB Output is correct
38 Correct 211 ms 160720 KB Output is correct
39 Correct 218 ms 159284 KB Output is correct
40 Correct 173 ms 153392 KB Output is correct
41 Correct 183 ms 154616 KB Output is correct
42 Correct 147 ms 152508 KB Output is correct
43 Correct 171 ms 154552 KB Output is correct
44 Correct 154 ms 152120 KB Output is correct
45 Correct 156 ms 153876 KB Output is correct
46 Correct 200 ms 175572 KB Output is correct
47 Correct 205 ms 162304 KB Output is correct