oj.uz

Submission #898759

# Submission time Handle Problem Language Result Execution time Memory
898759 2024-01-05T05:32:21 Z gaga999 Joker (BOI20_joker) C++17
100 / 100
 1703 ms 15036 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)
    {
        if (qs[t].empty())
            continue;
        sort(iter(qs[t]), [&](int a, int b)
             { return r[a] > r[b]; });
        bool ok = 0;
        for (int i = 0; i < cl; i++)
        {
            if (!i)
                continue;
            if (ok)
                break;
            if (f(u[i]) == f(v[i]))
                ok = 1;
            else
                add(i);
        }
        int cr = m;
        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 = cl; j < l[i]; j++)
                    {
                        if (!j)
                            continue;
                        if (f(v[j]) == f(u[j]))
                        {
                            an[i] = 1;
                            break;
                        }
                        add(j);
                    }
                    undo(pl);
                }
            }
        }
        init(ds, -1), ln = -1;
    }
    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 2 ms 12892 KB Output is correct
2 Correct 3 ms 12892 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 12888 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 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 3 ms 12892 KB Output is correct
15 Correct 2 ms 12896 KB Output is correct
16 Correct 2 ms 12888 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 3 ms 12888 KB Output is correct
20 Correct 2 ms 12892 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 12892 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 12900 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 3 ms 12892 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 12888 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 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 3 ms 12892 KB Output is correct
15 Correct 2 ms 12896 KB Output is correct
16 Correct 2 ms 12888 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 3 ms 12888 KB Output is correct
20 Correct 2 ms 12892 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 12892 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 12900 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 7 ms 12888 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 5 ms 12892 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12888 KB Output is correct
35 Correct 5 ms 12980 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 5 ms 12892 KB Output is correct
38 Correct 6 ms 12888 KB Output is correct
39 Correct 5 ms 12892 KB Output is correct
40 Correct 4 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 3 ms 12892 KB Output is correct
44 Correct 3 ms 12892 KB Output is correct
45 Correct 3 ms 12892 KB Output is correct
46 Correct 3 ms 12892 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 4 ms 12976 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 5 ms 12888 KB Output is correct
51 Correct 5 ms 12892 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 5 ms 12888 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 26 ms 14740 KB Output is correct
4 Correct 32 ms 14544 KB Output is correct
5 Correct 25 ms 14540 KB Output is correct
6 Correct 26 ms 14536 KB Output is correct
7 Correct 29 ms 14524 KB Output is correct
8 Correct 31 ms 14784 KB Output is correct
9 Correct 26 ms 14792 KB Output is correct
10 Correct 26 ms 14792 KB Output is correct
11 Correct 26 ms 14536 KB Output is correct
12 Correct 33 ms 14788 KB Output is correct
13 Correct 29 ms 14652 KB Output is correct
14 Correct 32 ms 14536 KB Output is correct
15 Correct 27 ms 14540 KB Output is correct
16 Correct 28 ms 14544 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 3 ms 12892 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 12888 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 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 3 ms 12892 KB Output is correct
15 Correct 2 ms 12896 KB Output is correct
16 Correct 2 ms 12888 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 3 ms 12888 KB Output is correct
20 Correct 2 ms 12892 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 12892 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 12900 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 26 ms 14740 KB Output is correct
30 Correct 32 ms 14544 KB Output is correct
31 Correct 25 ms 14540 KB Output is correct
32 Correct 26 ms 14536 KB Output is correct
33 Correct 29 ms 14524 KB Output is correct
34 Correct 31 ms 14784 KB Output is correct
35 Correct 26 ms 14792 KB Output is correct
36 Correct 26 ms 14792 KB Output is correct
37 Correct 26 ms 14536 KB Output is correct
38 Correct 33 ms 14788 KB Output is correct
39 Correct 29 ms 14652 KB Output is correct
40 Correct 32 ms 14536 KB Output is correct
41 Correct 27 ms 14540 KB Output is correct
42 Correct 28 ms 14544 KB Output is correct
43 Correct 171 ms 14636 KB Output is correct
44 Correct 203 ms 14532 KB Output is correct
45 Correct 180 ms 14656 KB Output is correct
46 Correct 158 ms 14648 KB Output is correct
47 Correct 165 ms 14648 KB Output is correct
48 Correct 47 ms 14788 KB Output is correct
49 Correct 57 ms 14788 KB Output is correct
50 Correct 231 ms 14532 KB Output is correct
51 Correct 220 ms 14648 KB Output is correct
52 Correct 202 ms 14532 KB Output is correct
53 Correct 225 ms 14648 KB Output is correct
54 Correct 257 ms 14632 KB Output is correct
55 Correct 246 ms 14536 KB Output is correct
56 Correct 212 ms 14652 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 3 ms 12892 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 12888 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 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 3 ms 12892 KB Output is correct
15 Correct 2 ms 12896 KB Output is correct
16 Correct 2 ms 12888 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 3 ms 12888 KB Output is correct
20 Correct 2 ms 12892 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 12892 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 12900 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 7 ms 12888 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 5 ms 12892 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12888 KB Output is correct
35 Correct 5 ms 12980 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 5 ms 12892 KB Output is correct
38 Correct 6 ms 12888 KB Output is correct
39 Correct 5 ms 12892 KB Output is correct
40 Correct 4 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 3 ms 12892 KB Output is correct
44 Correct 3 ms 12892 KB Output is correct
45 Correct 3 ms 12892 KB Output is correct
46 Correct 3 ms 12892 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 4 ms 12976 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 5 ms 12888 KB Output is correct
51 Correct 5 ms 12892 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 5 ms 12888 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
55 Correct 611 ms 13212 KB Output is correct
56 Correct 1437 ms 13148 KB Output is correct
57 Correct 636 ms 13216 KB Output is correct
58 Correct 553 ms 13220 KB Output is correct
59 Correct 1156 ms 13212 KB Output is correct
60 Correct 1008 ms 13216 KB Output is correct
61 Correct 849 ms 13396 KB Output is correct
62 Correct 769 ms 13148 KB Output is correct
63 Correct 1214 ms 13148 KB Output is correct
64 Correct 1121 ms 13236 KB Output is correct
65 Correct 937 ms 13396 KB Output is correct

Subtask #6
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 3 ms 12892 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 12888 KB Output is correct
10 Correct 2 ms 12892 KB Output is correct
11 Correct 3 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 3 ms 12892 KB Output is correct
15 Correct 2 ms 12896 KB Output is correct
16 Correct 2 ms 12888 KB Output is correct
17 Correct 2 ms 12892 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 3 ms 12888 KB Output is correct
20 Correct 2 ms 12892 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 12892 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 12900 KB Output is correct
27 Correct 2 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 7 ms 12888 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 5 ms 12892 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 3 ms 12888 KB Output is correct
35 Correct 5 ms 12980 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 5 ms 12892 KB Output is correct
38 Correct 6 ms 12888 KB Output is correct
39 Correct 5 ms 12892 KB Output is correct
40 Correct 4 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 3 ms 12892 KB Output is correct
44 Correct 3 ms 12892 KB Output is correct
45 Correct 3 ms 12892 KB Output is correct
46 Correct 3 ms 12892 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 4 ms 12976 KB Output is correct
49 Correct 4 ms 12892 KB Output is correct
50 Correct 5 ms 12888 KB Output is correct
51 Correct 5 ms 12892 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 5 ms 12888 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
55 Correct 26 ms 14740 KB Output is correct
56 Correct 32 ms 14544 KB Output is correct
57 Correct 25 ms 14540 KB Output is correct
58 Correct 26 ms 14536 KB Output is correct
59 Correct 29 ms 14524 KB Output is correct
60 Correct 31 ms 14784 KB Output is correct
61 Correct 26 ms 14792 KB Output is correct
62 Correct 26 ms 14792 KB Output is correct
63 Correct 26 ms 14536 KB Output is correct
64 Correct 33 ms 14788 KB Output is correct
65 Correct 29 ms 14652 KB Output is correct
66 Correct 32 ms 14536 KB Output is correct
67 Correct 27 ms 14540 KB Output is correct
68 Correct 28 ms 14544 KB Output is correct
69 Correct 171 ms 14636 KB Output is correct
70 Correct 203 ms 14532 KB Output is correct
71 Correct 180 ms 14656 KB Output is correct
72 Correct 158 ms 14648 KB Output is correct
73 Correct 165 ms 14648 KB Output is correct
74 Correct 47 ms 14788 KB Output is correct
75 Correct 57 ms 14788 KB Output is correct
76 Correct 231 ms 14532 KB Output is correct
77 Correct 220 ms 14648 KB Output is correct
78 Correct 202 ms 14532 KB Output is correct
79 Correct 225 ms 14648 KB Output is correct
80 Correct 257 ms 14632 KB Output is correct
81 Correct 246 ms 14536 KB Output is correct
82 Correct 212 ms 14652 KB Output is correct
83 Correct 611 ms 13212 KB Output is correct
84 Correct 1437 ms 13148 KB Output is correct
85 Correct 636 ms 13216 KB Output is correct
86 Correct 553 ms 13220 KB Output is correct
87 Correct 1156 ms 13212 KB Output is correct
88 Correct 1008 ms 13216 KB Output is correct
89 Correct 849 ms 13396 KB Output is correct
90 Correct 769 ms 13148 KB Output is correct
91 Correct 1214 ms 13148 KB Output is correct
92 Correct 1121 ms 13236 KB Output is correct
93 Correct 937 ms 13396 KB Output is correct
94 Correct 801 ms 14936 KB Output is correct
95 Correct 1703 ms 14772 KB Output is correct
96 Correct 925 ms 14776 KB Output is correct
97 Correct 698 ms 14860 KB Output is correct
98 Correct 701 ms 15036 KB Output is correct
99 Correct 1282 ms 14996 KB Output is correct
100 Correct 811 ms 15012 KB Output is correct
101 Correct 964 ms 14736 KB Output is correct
102 Correct 1037 ms 14744 KB Output is correct
103 Correct 1028 ms 14740 KB Output is correct
104 Correct 1491 ms 14728 KB Output is correct
105 Correct 1360 ms 14748 KB Output is correct
106 Correct 1230 ms 14732 KB Output is correct
107 Correct 304 ms 14528 KB Output is correct
108 Correct 663 ms 14828 KB Output is correct
109 Correct 720 ms 14704 KB Output is correct
110 Correct 677 ms 14932 KB Output is correct
111 Correct 711 ms 14752 KB Output is correct
112 Correct 685 ms 14756 KB Output is correct
113 Correct 729 ms 14756 KB Output is correct
114 Correct 696 ms 14744 KB Output is correct
115 Correct 710 ms 14772 KB Output is correct
116 Correct 731 ms 14784 KB Output is correct