답안 #898706

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
898706 2024-01-05T03:41:27 Z gaga999 Joker (BOI20_joker) C++17
100 / 100
1673 ms 15056 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);
                }
            }
        }
        init(ds, -1), ln = -1;
    }
    for (int i = 0; i < q; i++)
        puts(an[i] ? "YES" : "NO");
}
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12908 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 12932 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 12900 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 2 ms 12892 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 12888 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
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12908 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 12932 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 12900 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 2 ms 12892 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 12888 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 13144 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 5 ms 12888 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 12976 KB Output is correct
36 Correct 4 ms 12888 KB Output is correct
37 Correct 5 ms 12888 KB Output is correct
38 Correct 7 ms 12892 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 12908 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 12976 KB Output is correct
50 Correct 5 ms 12892 KB Output is correct
51 Correct 5 ms 12892 KB Output is correct
52 Correct 4 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 495 ms 14636 KB Output is correct
4 Correct 681 ms 14636 KB Output is correct
5 Correct 650 ms 14636 KB Output is correct
6 Correct 564 ms 14640 KB Output is correct
7 Correct 565 ms 14640 KB Output is correct
8 Correct 1241 ms 14892 KB Output is correct
9 Correct 1086 ms 14892 KB Output is correct
10 Correct 728 ms 14788 KB Output is correct
11 Correct 734 ms 14796 KB Output is correct
12 Correct 582 ms 14788 KB Output is correct
13 Correct 1330 ms 14536 KB Output is correct
14 Correct 1245 ms 14640 KB Output is correct
15 Correct 927 ms 14792 KB Output is correct
16 Correct 737 ms 14796 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12908 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 12932 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 12900 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 2 ms 12892 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 12888 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 495 ms 14636 KB Output is correct
30 Correct 681 ms 14636 KB Output is correct
31 Correct 650 ms 14636 KB Output is correct
32 Correct 564 ms 14640 KB Output is correct
33 Correct 565 ms 14640 KB Output is correct
34 Correct 1241 ms 14892 KB Output is correct
35 Correct 1086 ms 14892 KB Output is correct
36 Correct 728 ms 14788 KB Output is correct
37 Correct 734 ms 14796 KB Output is correct
38 Correct 582 ms 14788 KB Output is correct
39 Correct 1330 ms 14536 KB Output is correct
40 Correct 1245 ms 14640 KB Output is correct
41 Correct 927 ms 14792 KB Output is correct
42 Correct 737 ms 14796 KB Output is correct
43 Correct 625 ms 14652 KB Output is correct
44 Correct 836 ms 14628 KB Output is correct
45 Correct 810 ms 14632 KB Output is correct
46 Correct 681 ms 14652 KB Output is correct
47 Correct 718 ms 14636 KB Output is correct
48 Correct 1137 ms 14888 KB Output is correct
49 Correct 728 ms 14888 KB Output is correct
50 Correct 909 ms 15056 KB Output is correct
51 Correct 848 ms 14532 KB Output is correct
52 Correct 786 ms 14644 KB Output is correct
53 Correct 1542 ms 14632 KB Output is correct
54 Correct 1451 ms 14628 KB Output is correct
55 Correct 1120 ms 14632 KB Output is correct
56 Correct 925 ms 14648 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12908 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 12932 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 12900 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 2 ms 12892 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 12888 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 13144 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 5 ms 12888 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 12976 KB Output is correct
36 Correct 4 ms 12888 KB Output is correct
37 Correct 5 ms 12888 KB Output is correct
38 Correct 7 ms 12892 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 12908 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 12976 KB Output is correct
50 Correct 5 ms 12892 KB Output is correct
51 Correct 5 ms 12892 KB Output is correct
52 Correct 4 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
55 Correct 628 ms 13220 KB Output is correct
56 Correct 1485 ms 13148 KB Output is correct
57 Correct 628 ms 13220 KB Output is correct
58 Correct 555 ms 13392 KB Output is correct
59 Correct 1142 ms 13392 KB Output is correct
60 Correct 1032 ms 13216 KB Output is correct
61 Correct 805 ms 13216 KB Output is correct
62 Correct 744 ms 13220 KB Output is correct
63 Correct 1232 ms 13216 KB Output is correct
64 Correct 1182 ms 13220 KB Output is correct
65 Correct 953 ms 13240 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 2 ms 12908 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 12932 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 12900 KB Output is correct
18 Correct 2 ms 12892 KB Output is correct
19 Correct 2 ms 12892 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 12888 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 13144 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 4 ms 12892 KB Output is correct
32 Correct 5 ms 12888 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 12976 KB Output is correct
36 Correct 4 ms 12888 KB Output is correct
37 Correct 5 ms 12888 KB Output is correct
38 Correct 7 ms 12892 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 12908 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 12976 KB Output is correct
50 Correct 5 ms 12892 KB Output is correct
51 Correct 5 ms 12892 KB Output is correct
52 Correct 4 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12892 KB Output is correct
55 Correct 495 ms 14636 KB Output is correct
56 Correct 681 ms 14636 KB Output is correct
57 Correct 650 ms 14636 KB Output is correct
58 Correct 564 ms 14640 KB Output is correct
59 Correct 565 ms 14640 KB Output is correct
60 Correct 1241 ms 14892 KB Output is correct
61 Correct 1086 ms 14892 KB Output is correct
62 Correct 728 ms 14788 KB Output is correct
63 Correct 734 ms 14796 KB Output is correct
64 Correct 582 ms 14788 KB Output is correct
65 Correct 1330 ms 14536 KB Output is correct
66 Correct 1245 ms 14640 KB Output is correct
67 Correct 927 ms 14792 KB Output is correct
68 Correct 737 ms 14796 KB Output is correct
69 Correct 625 ms 14652 KB Output is correct
70 Correct 836 ms 14628 KB Output is correct
71 Correct 810 ms 14632 KB Output is correct
72 Correct 681 ms 14652 KB Output is correct
73 Correct 718 ms 14636 KB Output is correct
74 Correct 1137 ms 14888 KB Output is correct
75 Correct 728 ms 14888 KB Output is correct
76 Correct 909 ms 15056 KB Output is correct
77 Correct 848 ms 14532 KB Output is correct
78 Correct 786 ms 14644 KB Output is correct
79 Correct 1542 ms 14632 KB Output is correct
80 Correct 1451 ms 14628 KB Output is correct
81 Correct 1120 ms 14632 KB Output is correct
82 Correct 925 ms 14648 KB Output is correct
83 Correct 628 ms 13220 KB Output is correct
84 Correct 1485 ms 13148 KB Output is correct
85 Correct 628 ms 13220 KB Output is correct
86 Correct 555 ms 13392 KB Output is correct
87 Correct 1142 ms 13392 KB Output is correct
88 Correct 1032 ms 13216 KB Output is correct
89 Correct 805 ms 13216 KB Output is correct
90 Correct 744 ms 13220 KB Output is correct
91 Correct 1232 ms 13216 KB Output is correct
92 Correct 1182 ms 13220 KB Output is correct
93 Correct 953 ms 13240 KB Output is correct
94 Correct 796 ms 14748 KB Output is correct
95 Correct 1673 ms 14756 KB Output is correct
96 Correct 942 ms 14764 KB Output is correct
97 Correct 696 ms 14752 KB Output is correct
98 Correct 712 ms 14748 KB Output is correct
99 Correct 1254 ms 14996 KB Output is correct
100 Correct 821 ms 15016 KB Output is correct
101 Correct 941 ms 14744 KB Output is correct
102 Correct 1030 ms 14932 KB Output is correct
103 Correct 1016 ms 14744 KB Output is correct
104 Correct 1556 ms 14928 KB Output is correct
105 Correct 1330 ms 14928 KB Output is correct
106 Correct 1222 ms 14728 KB Output is correct
107 Correct 541 ms 14636 KB Output is correct
108 Correct 994 ms 14828 KB Output is correct
109 Correct 978 ms 14704 KB Output is correct
110 Correct 991 ms 14932 KB Output is correct
111 Correct 991 ms 14932 KB Output is correct
112 Correct 1029 ms 14756 KB Output is correct
113 Correct 989 ms 14752 KB Output is correct
114 Correct 1002 ms 14932 KB Output is correct
115 Correct 985 ms 14936 KB Output is correct
116 Correct 1022 ms 14928 KB Output is correct