oj.uz

Submission #898742

# Submission time Handle Problem Language Result Execution time Memory
898742 2024-01-05T05:18:42 Z gaga999 Joker (BOI20_joker) C++17
49 / 100
 1088 ms 15040 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 = 2e5 + 5, B = 450;
int u[N], v[N], l[N], r[N], ds[N << 1], ln = -1, n;
bool an[N];
pii rm[N << 1];
vector<int> qs[N];

int f(int x)
{
    return ds[x] < 0 ? x : f(ds[x]);
}

inline void mg(int i, int j)
{
    i = f(i), j = f(j);
    if (i != j)
    {
        if (ds[i] > ds[j])
            swap(i, j);
        rm[++ln] = mpr(j, ds[j]);
        ds[i] += ds[j], ds[j] = i;
    }
}

inline void undo(int p)
{
    while (ln > p)
        ds[ds[rm[ln].F]] -= rm[ln].S, ds[rm[ln].F] = rm[ln].S, ln--;
}

inline void add(int i)
{
    mg(u[i], v[i] + n), mg(v[i], u[i] + n);
}

signed main()
{
    int m, q;
    rd(n, m, q);
    for (int i = 1; i <= m; i++)
        rd(u[i], v[i]);
    for (int i = 0; i < q; i++)
    {
        rd(l[i], r[i]);
        qs[l[i] / B].pb(i);
    }
    init(ds, -1);
    for (int t = 0, cl = 0; cl <= m; t++, cl += B)
    {
        sort(iter(qs[t]), [&](int a, int b)
             { return r[a] > r[b]; });
        bool ok = 0;
        for (int i = max(1, cl - B * 5); i < cl; i++)
        {
            if (ok)
                break;
            if (f(u[i]) == f(v[i]))
                ok = 1;
            else
                add(i);
        }
        int cr = m, pr = ln;
        for (int i : qs[t])
        {
            if (ok)
                an[i] = 1;
            else
            {
                while (cr > r[i])
                {
                    if (f(u[cr]) == f(v[cr]))
                        ok = 1;
                    else
                        add(cr--);
                    if (ok)
                        break;
                }
                if (ok)
                    an[i] = 1;
                else
                {
                    int pl = ln;
                    for (int j = max(1, cl); j < l[i]; j++)
                    {
                        if (f(v[j]) == f(u[j]))
                        {
                            an[i] = 1;
                            break;
                        }
                        add(j);
                    }
                    undo(pl);
                }
            }
        }
        undo(pr);
    }
    for (int i = 0; i < q; i++)
        puts(an[i] ? "YES" : "NO");
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12888 KB Output is correct
2 Correct 2 ms 13144 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 2 ms 12892 KB Output is correct
5 Correct 2 ms 12892 KB Output is correct
6 Correct 2 ms 12892 KB Output is correct
7 Correct 2 ms 12892 KB Output is correct
8 Correct 2 ms 12892 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 2 ms 12892 KB Output is correct
12 Correct 2 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 2 ms 12892 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 2 ms 12912 KB Output is correct
20 Correct 2 ms 12888 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 2 ms 12888 KB Output is correct
24 Correct 2 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 2 ms 12892 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 2 ms 12892 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12888 KB Output is correct
2 Correct 2 ms 13144 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 2 ms 12892 KB Output is correct
5 Correct 2 ms 12892 KB Output is correct
6 Correct 2 ms 12892 KB Output is correct
7 Correct 2 ms 12892 KB Output is correct
8 Correct 2 ms 12892 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 2 ms 12892 KB Output is correct
12 Correct 2 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 2 ms 12892 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 2 ms 12912 KB Output is correct
20 Correct 2 ms 12888 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 2 ms 12888 KB Output is correct
24 Correct 2 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 2 ms 12892 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 2 ms 12892 KB Output is correct
29 Correct 7 ms 12892 KB Output is correct
30 Correct 4 ms 12892 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 4 ms 12960 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 5 ms 12888 KB Output is correct
36 Correct 4 ms 12972 KB Output is correct
37 Correct 5 ms 12980 KB Output is correct
38 Correct 6 ms 12892 KB Output is correct
39 Correct 5 ms 12892 KB Output is correct
40 Correct 4 ms 12904 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 2 ms 12892 KB Output is correct
44 Correct 2 ms 12892 KB Output is correct
45 Correct 2 ms 12892 KB Output is correct
46 Correct 3 ms 12888 KB Output is correct
47 Correct 6 ms 12892 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 5 ms 13100 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12960 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12888 KB Output is correct
2 Correct 2 ms 13144 KB Output is correct
3 Correct 29 ms 14636 KB Output is correct
4 Correct 38 ms 14500 KB Output is correct
5 Correct 32 ms 14544 KB Output is correct
6 Correct 31 ms 14536 KB Output is correct
7 Correct 31 ms 14528 KB Output is correct
8 Correct 43 ms 14784 KB Output is correct
9 Correct 41 ms 14644 KB Output is correct
10 Correct 36 ms 14800 KB Output is correct
11 Correct 33 ms 14532 KB Output is correct
12 Correct 35 ms 14652 KB Output is correct
13 Correct 51 ms 14552 KB Output is correct
14 Correct 46 ms 14536 KB Output is correct
15 Correct 47 ms 14648 KB Output is correct
16 Correct 37 ms 14544 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12888 KB Output is correct
2 Correct 2 ms 13144 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 2 ms 12892 KB Output is correct
5 Correct 2 ms 12892 KB Output is correct
6 Correct 2 ms 12892 KB Output is correct
7 Correct 2 ms 12892 KB Output is correct
8 Correct 2 ms 12892 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 2 ms 12892 KB Output is correct
12 Correct 2 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 2 ms 12892 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 2 ms 12912 KB Output is correct
20 Correct 2 ms 12888 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 2 ms 12888 KB Output is correct
24 Correct 2 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 2 ms 12892 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 2 ms 12892 KB Output is correct
29 Correct 29 ms 14636 KB Output is correct
30 Correct 38 ms 14500 KB Output is correct
31 Correct 32 ms 14544 KB Output is correct
32 Correct 31 ms 14536 KB Output is correct
33 Correct 31 ms 14528 KB Output is correct
34 Correct 43 ms 14784 KB Output is correct
35 Correct 41 ms 14644 KB Output is correct
36 Correct 36 ms 14800 KB Output is correct
37 Correct 33 ms 14532 KB Output is correct
38 Correct 35 ms 14652 KB Output is correct
39 Correct 51 ms 14552 KB Output is correct
40 Correct 46 ms 14536 KB Output is correct
41 Correct 47 ms 14648 KB Output is correct
42 Correct 37 ms 14544 KB Output is correct
43 Correct 171 ms 14536 KB Output is correct
44 Correct 209 ms 14636 KB Output is correct
45 Correct 194 ms 14652 KB Output is correct
46 Correct 165 ms 14532 KB Output is correct
47 Correct 155 ms 15040 KB Output is correct
48 Correct 61 ms 14904 KB Output is correct
49 Correct 70 ms 14884 KB Output is correct
50 Correct 245 ms 14632 KB Output is correct
51 Correct 238 ms 14636 KB Output is correct
52 Correct 206 ms 14536 KB Output is correct
53 Correct 269 ms 14532 KB Output is correct
54 Correct 276 ms 14648 KB Output is correct
55 Correct 294 ms 14636 KB Output is correct
56 Correct 232 ms 14636 KB Output is correct

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12888 KB Output is correct
2 Correct 2 ms 13144 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 2 ms 12892 KB Output is correct
5 Correct 2 ms 12892 KB Output is correct
6 Correct 2 ms 12892 KB Output is correct
7 Correct 2 ms 12892 KB Output is correct
8 Correct 2 ms 12892 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 2 ms 12892 KB Output is correct
12 Correct 2 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 2 ms 12892 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 2 ms 12912 KB Output is correct
20 Correct 2 ms 12888 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 2 ms 12888 KB Output is correct
24 Correct 2 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 2 ms 12892 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 2 ms 12892 KB Output is correct
29 Correct 7 ms 12892 KB Output is correct
30 Correct 4 ms 12892 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 4 ms 12960 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 5 ms 12888 KB Output is correct
36 Correct 4 ms 12972 KB Output is correct
37 Correct 5 ms 12980 KB Output is correct
38 Correct 6 ms 12892 KB Output is correct
39 Correct 5 ms 12892 KB Output is correct
40 Correct 4 ms 12904 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 2 ms 12892 KB Output is correct
44 Correct 2 ms 12892 KB Output is correct
45 Correct 2 ms 12892 KB Output is correct
46 Correct 3 ms 12888 KB Output is correct
47 Correct 6 ms 12892 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 5 ms 13100 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12960 KB Output is correct
55 Correct 223 ms 13212 KB Output is correct
56 Correct 1088 ms 13224 KB Output is correct
57 Correct 25 ms 13248 KB Output is correct
58 Correct 20 ms 13148 KB Output is correct
59 Correct 107 ms 13216 KB Output is correct
60 Correct 259 ms 13216 KB Output is correct
61 Correct 140 ms 13220 KB Output is correct
62 Incorrect 266 ms 13212 KB Output isn't correct
63 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12888 KB Output is correct
2 Correct 2 ms 13144 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 2 ms 12892 KB Output is correct
5 Correct 2 ms 12892 KB Output is correct
6 Correct 2 ms 12892 KB Output is correct
7 Correct 2 ms 12892 KB Output is correct
8 Correct 2 ms 12892 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 2 ms 12892 KB Output is correct
12 Correct 2 ms 12892 KB Output is correct
13 Correct 2 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 2 ms 12892 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 2 ms 12912 KB Output is correct
20 Correct 2 ms 12888 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12892 KB Output is correct
23 Correct 2 ms 12888 KB Output is correct
24 Correct 2 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 2 ms 12892 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 2 ms 12892 KB Output is correct
29 Correct 7 ms 12892 KB Output is correct
30 Correct 4 ms 12892 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 4 ms 12960 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 5 ms 12888 KB Output is correct
36 Correct 4 ms 12972 KB Output is correct
37 Correct 5 ms 12980 KB Output is correct
38 Correct 6 ms 12892 KB Output is correct
39 Correct 5 ms 12892 KB Output is correct
40 Correct 4 ms 12904 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 2 ms 12892 KB Output is correct
44 Correct 2 ms 12892 KB Output is correct
45 Correct 2 ms 12892 KB Output is correct
46 Correct 3 ms 12888 KB Output is correct
47 Correct 6 ms 12892 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 5 ms 13100 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12960 KB Output is correct
55 Correct 29 ms 14636 KB Output is correct
56 Correct 38 ms 14500 KB Output is correct
57 Correct 32 ms 14544 KB Output is correct
58 Correct 31 ms 14536 KB Output is correct
59 Correct 31 ms 14528 KB Output is correct
60 Correct 43 ms 14784 KB Output is correct
61 Correct 41 ms 14644 KB Output is correct
62 Correct 36 ms 14800 KB Output is correct
63 Correct 33 ms 14532 KB Output is correct
64 Correct 35 ms 14652 KB Output is correct
65 Correct 51 ms 14552 KB Output is correct
66 Correct 46 ms 14536 KB Output is correct
67 Correct 47 ms 14648 KB Output is correct
68 Correct 37 ms 14544 KB Output is correct
69 Correct 171 ms 14536 KB Output is correct
70 Correct 209 ms 14636 KB Output is correct
71 Correct 194 ms 14652 KB Output is correct
72 Correct 165 ms 14532 KB Output is correct
73 Correct 155 ms 15040 KB Output is correct
74 Correct 61 ms 14904 KB Output is correct
75 Correct 70 ms 14884 KB Output is correct
76 Correct 245 ms 14632 KB Output is correct
77 Correct 238 ms 14636 KB Output is correct
78 Correct 206 ms 14536 KB Output is correct
79 Correct 269 ms 14532 KB Output is correct
80 Correct 276 ms 14648 KB Output is correct
81 Correct 294 ms 14636 KB Output is correct
82 Correct 232 ms 14636 KB Output is correct
83 Correct 223 ms 13212 KB Output is correct
84 Correct 1088 ms 13224 KB Output is correct
85 Correct 25 ms 13248 KB Output is correct
86 Correct 20 ms 13148 KB Output is correct
87 Correct 107 ms 13216 KB Output is correct
88 Correct 259 ms 13216 KB Output is correct
89 Correct 140 ms 13220 KB Output is correct
90 Incorrect 266 ms 13212 KB Output isn't correct
91 Halted 0 ms 0 KB -