oj.uz

Submission #898693

# Submission time Handle Problem Language Result Execution time Memory
898693 2024-01-05T03:22:16 Z gaga999 Joker (BOI20_joker) C++17
71 / 100
 2000 ms 19676 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 = 1; i < cl; i++)
        {
            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 = max(1, cl); j < l[i]; j++)
                    {
                        if (f(v[j]) == f(u[j]))
                        {
                            an[i] = 1;
                            break;
                        }
                        add(j);
                    }
                    undo(pl);
                }
            }
        }
        undo(-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 2 ms 12892 KB Output is correct
3 Correct 2 ms 12892 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 12904 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 3 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 2 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 12892 KB Output is correct
20 Correct 2 ms 12932 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12696 KB Output is correct
23 Correct 2 ms 12892 KB Output is correct
24 Correct 2 ms 12924 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 2 ms 12892 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12892 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 12904 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 3 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 2 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 12892 KB Output is correct
20 Correct 2 ms 12932 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12696 KB Output is correct
23 Correct 2 ms 12892 KB Output is correct
24 Correct 2 ms 12924 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 6 ms 12892 KB Output is correct
30 Correct 5 ms 13028 KB Output is correct
31 Correct 4 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 4 ms 12892 KB Output is correct
35 Correct 5 ms 12888 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 12892 KB Output is correct
39 Correct 6 ms 12892 KB Output is correct
40 Correct 4 ms 12896 KB Output is correct
41 Correct 4 ms 12896 KB Output is correct
42 Correct 4 ms 12888 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 12888 KB Output is correct
47 Correct 5 ms 12888 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 5 ms 13016 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 5 ms 13008 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 4 ms 12892 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 2 ms 12892 KB Output is correct
3 Correct 663 ms 18660 KB Output is correct
4 Correct 919 ms 18196 KB Output is correct
5 Correct 952 ms 18596 KB Output is correct
6 Correct 668 ms 18372 KB Output is correct
7 Correct 764 ms 18392 KB Output is correct
8 Correct 1330 ms 18372 KB Output is correct
9 Correct 1298 ms 18232 KB Output is correct
10 Correct 887 ms 18448 KB Output is correct
11 Correct 872 ms 18472 KB Output is correct
12 Correct 708 ms 18732 KB Output is correct
13 Correct 1373 ms 18468 KB Output is correct
14 Correct 1331 ms 18628 KB Output is correct
15 Correct 1189 ms 18468 KB Output is correct
16 Correct 910 ms 18972 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 2 ms 12892 KB Output is correct
3 Correct 2 ms 12892 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 12904 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 3 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 2 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 12892 KB Output is correct
20 Correct 2 ms 12932 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12696 KB Output is correct
23 Correct 2 ms 12892 KB Output is correct
24 Correct 2 ms 12924 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 663 ms 18660 KB Output is correct
30 Correct 919 ms 18196 KB Output is correct
31 Correct 952 ms 18596 KB Output is correct
32 Correct 668 ms 18372 KB Output is correct
33 Correct 764 ms 18392 KB Output is correct
34 Correct 1330 ms 18372 KB Output is correct
35 Correct 1298 ms 18232 KB Output is correct
36 Correct 887 ms 18448 KB Output is correct
37 Correct 872 ms 18472 KB Output is correct
38 Correct 708 ms 18732 KB Output is correct
39 Correct 1373 ms 18468 KB Output is correct
40 Correct 1331 ms 18628 KB Output is correct
41 Correct 1189 ms 18468 KB Output is correct
42 Correct 910 ms 18972 KB Output is correct
43 Correct 805 ms 18944 KB Output is correct
44 Correct 1055 ms 18680 KB Output is correct
45 Correct 1062 ms 19028 KB Output is correct
46 Correct 813 ms 18948 KB Output is correct
47 Correct 882 ms 18884 KB Output is correct
48 Correct 1268 ms 18720 KB Output is correct
49 Correct 1056 ms 19136 KB Output is correct
50 Correct 1002 ms 19108 KB Output is correct
51 Correct 980 ms 19060 KB Output is correct
52 Correct 947 ms 19140 KB Output is correct
53 Correct 1595 ms 18776 KB Output is correct
54 Correct 1572 ms 18936 KB Output is correct
55 Correct 1277 ms 19100 KB Output is correct
56 Correct 1170 ms 19140 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 2 ms 12892 KB Output is correct
3 Correct 2 ms 12892 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 12904 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 3 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 2 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 12892 KB Output is correct
20 Correct 2 ms 12932 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12696 KB Output is correct
23 Correct 2 ms 12892 KB Output is correct
24 Correct 2 ms 12924 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 6 ms 12892 KB Output is correct
30 Correct 5 ms 13028 KB Output is correct
31 Correct 4 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 4 ms 12892 KB Output is correct
35 Correct 5 ms 12888 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 12892 KB Output is correct
39 Correct 6 ms 12892 KB Output is correct
40 Correct 4 ms 12896 KB Output is correct
41 Correct 4 ms 12896 KB Output is correct
42 Correct 4 ms 12888 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 12888 KB Output is correct
47 Correct 5 ms 12888 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 5 ms 13016 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 5 ms 13008 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 4 ms 12892 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
55 Correct 895 ms 15788 KB Output is correct
56 Correct 1934 ms 15952 KB Output is correct
57 Correct 861 ms 15740 KB Output is correct
58 Correct 751 ms 15552 KB Output is correct
59 Correct 1342 ms 15544 KB Output is correct
60 Correct 1264 ms 15704 KB Output is correct
61 Correct 986 ms 15548 KB Output is correct
62 Correct 1002 ms 15720 KB Output is correct
63 Correct 1287 ms 15480 KB Output is correct
64 Correct 1306 ms 15696 KB Output is correct
65 Correct 1238 ms 15752 KB Output is correct

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12892 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 12904 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 3 ms 12892 KB Output is correct
14 Correct 2 ms 12892 KB Output is correct
15 Correct 2 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 12892 KB Output is correct
20 Correct 2 ms 12932 KB Output is correct
21 Correct 2 ms 12892 KB Output is correct
22 Correct 2 ms 12696 KB Output is correct
23 Correct 2 ms 12892 KB Output is correct
24 Correct 2 ms 12924 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 6 ms 12892 KB Output is correct
30 Correct 5 ms 13028 KB Output is correct
31 Correct 4 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 4 ms 12892 KB Output is correct
35 Correct 5 ms 12888 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 12892 KB Output is correct
39 Correct 6 ms 12892 KB Output is correct
40 Correct 4 ms 12896 KB Output is correct
41 Correct 4 ms 12896 KB Output is correct
42 Correct 4 ms 12888 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 12888 KB Output is correct
47 Correct 5 ms 12888 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 5 ms 13016 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 5 ms 13008 KB Output is correct
52 Correct 5 ms 12892 KB Output is correct
53 Correct 4 ms 12892 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
55 Correct 663 ms 18660 KB Output is correct
56 Correct 919 ms 18196 KB Output is correct
57 Correct 952 ms 18596 KB Output is correct
58 Correct 668 ms 18372 KB Output is correct
59 Correct 764 ms 18392 KB Output is correct
60 Correct 1330 ms 18372 KB Output is correct
61 Correct 1298 ms 18232 KB Output is correct
62 Correct 887 ms 18448 KB Output is correct
63 Correct 872 ms 18472 KB Output is correct
64 Correct 708 ms 18732 KB Output is correct
65 Correct 1373 ms 18468 KB Output is correct
66 Correct 1331 ms 18628 KB Output is correct
67 Correct 1189 ms 18468 KB Output is correct
68 Correct 910 ms 18972 KB Output is correct
69 Correct 805 ms 18944 KB Output is correct
70 Correct 1055 ms 18680 KB Output is correct
71 Correct 1062 ms 19028 KB Output is correct
72 Correct 813 ms 18948 KB Output is correct
73 Correct 882 ms 18884 KB Output is correct
74 Correct 1268 ms 18720 KB Output is correct
75 Correct 1056 ms 19136 KB Output is correct
76 Correct 1002 ms 19108 KB Output is correct
77 Correct 980 ms 19060 KB Output is correct
78 Correct 947 ms 19140 KB Output is correct
79 Correct 1595 ms 18776 KB Output is correct
80 Correct 1572 ms 18936 KB Output is correct
81 Correct 1277 ms 19100 KB Output is correct
82 Correct 1170 ms 19140 KB Output is correct
83 Correct 895 ms 15788 KB Output is correct
84 Correct 1934 ms 15952 KB Output is correct
85 Correct 861 ms 15740 KB Output is correct
86 Correct 751 ms 15552 KB Output is correct
87 Correct 1342 ms 15544 KB Output is correct
88 Correct 1264 ms 15704 KB Output is correct
89 Correct 986 ms 15548 KB Output is correct
90 Correct 1002 ms 15720 KB Output is correct
91 Correct 1287 ms 15480 KB Output is correct
92 Correct 1306 ms 15696 KB Output is correct
93 Correct 1238 ms 15752 KB Output is correct
94 Correct 1038 ms 19676 KB Output is correct
95 Execution timed out 2005 ms 19536 KB Time limit exceeded
96 Halted 0 ms 0 KB -