답안 #898728

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
898728 2024-01-05T05:02:25 Z gaga999 Joker (BOI20_joker) C++17
100 / 100
1738 ms 15012 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; t < B; 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 = 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 3 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 3 ms 12892 KB Output is correct
8 Correct 3 ms 12888 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 2 ms 12896 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 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 2 ms 12888 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 3 ms 12904 KB Output is correct
24 Correct 3 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12920 KB Output is correct
27 Correct 2 ms 12888 KB Output is correct
28 Correct 2 ms 12888 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 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 3 ms 12892 KB Output is correct
8 Correct 3 ms 12888 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 2 ms 12896 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 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 2 ms 12888 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 3 ms 12904 KB Output is correct
24 Correct 3 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12920 KB Output is correct
27 Correct 2 ms 12888 KB Output is correct
28 Correct 2 ms 12888 KB Output is correct
29 Correct 6 ms 12892 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 6 ms 12888 KB Output is correct
32 Correct 4 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 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 6 ms 12888 KB Output is correct
38 Correct 6 ms 12892 KB Output is correct
39 Correct 5 ms 12988 KB Output is correct
40 Correct 6 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 6 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 12892 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 12888 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12980 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12892 KB Output is correct
2 Correct 2 ms 12892 KB Output is correct
3 Correct 25 ms 14532 KB Output is correct
4 Correct 28 ms 14544 KB Output is correct
5 Correct 25 ms 14800 KB Output is correct
6 Correct 36 ms 14664 KB Output is correct
7 Correct 31 ms 14544 KB Output is correct
8 Correct 35 ms 14912 KB Output is correct
9 Correct 26 ms 14796 KB Output is correct
10 Correct 25 ms 14892 KB Output is correct
11 Correct 30 ms 14540 KB Output is correct
12 Correct 26 ms 14540 KB Output is correct
13 Correct 40 ms 14652 KB Output is correct
14 Correct 29 ms 14536 KB Output is correct
15 Correct 27 ms 14684 KB Output is correct
16 Correct 29 ms 14532 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 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 3 ms 12892 KB Output is correct
8 Correct 3 ms 12888 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 2 ms 12896 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 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 2 ms 12888 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 3 ms 12904 KB Output is correct
24 Correct 3 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12920 KB Output is correct
27 Correct 2 ms 12888 KB Output is correct
28 Correct 2 ms 12888 KB Output is correct
29 Correct 25 ms 14532 KB Output is correct
30 Correct 28 ms 14544 KB Output is correct
31 Correct 25 ms 14800 KB Output is correct
32 Correct 36 ms 14664 KB Output is correct
33 Correct 31 ms 14544 KB Output is correct
34 Correct 35 ms 14912 KB Output is correct
35 Correct 26 ms 14796 KB Output is correct
36 Correct 25 ms 14892 KB Output is correct
37 Correct 30 ms 14540 KB Output is correct
38 Correct 26 ms 14540 KB Output is correct
39 Correct 40 ms 14652 KB Output is correct
40 Correct 29 ms 14536 KB Output is correct
41 Correct 27 ms 14684 KB Output is correct
42 Correct 29 ms 14532 KB Output is correct
43 Correct 158 ms 14532 KB Output is correct
44 Correct 194 ms 14628 KB Output is correct
45 Correct 189 ms 14632 KB Output is correct
46 Correct 177 ms 14540 KB Output is correct
47 Correct 165 ms 14536 KB Output is correct
48 Correct 52 ms 14896 KB Output is correct
49 Correct 57 ms 14988 KB Output is correct
50 Correct 217 ms 14632 KB Output is correct
51 Correct 227 ms 14640 KB Output is correct
52 Correct 245 ms 14632 KB Output is correct
53 Correct 224 ms 14640 KB Output is correct
54 Correct 267 ms 14632 KB Output is correct
55 Correct 243 ms 14632 KB Output is correct
56 Correct 232 ms 14632 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 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 3 ms 12892 KB Output is correct
8 Correct 3 ms 12888 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 2 ms 12896 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 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 2 ms 12888 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 3 ms 12904 KB Output is correct
24 Correct 3 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12920 KB Output is correct
27 Correct 2 ms 12888 KB Output is correct
28 Correct 2 ms 12888 KB Output is correct
29 Correct 6 ms 12892 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 6 ms 12888 KB Output is correct
32 Correct 4 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 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 6 ms 12888 KB Output is correct
38 Correct 6 ms 12892 KB Output is correct
39 Correct 5 ms 12988 KB Output is correct
40 Correct 6 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 6 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 12892 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 12888 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12980 KB Output is correct
55 Correct 605 ms 13144 KB Output is correct
56 Correct 1443 ms 13396 KB Output is correct
57 Correct 632 ms 13392 KB Output is correct
58 Correct 538 ms 13224 KB Output is correct
59 Correct 1176 ms 13212 KB Output is correct
60 Correct 992 ms 13220 KB Output is correct
61 Correct 814 ms 13212 KB Output is correct
62 Correct 824 ms 13392 KB Output is correct
63 Correct 1211 ms 13212 KB Output is correct
64 Correct 1112 ms 13224 KB Output is correct
65 Correct 963 ms 13216 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 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 3 ms 12892 KB Output is correct
8 Correct 3 ms 12888 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 2 ms 12896 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 2 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 2 ms 12888 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 3 ms 12904 KB Output is correct
24 Correct 3 ms 12892 KB Output is correct
25 Correct 2 ms 12892 KB Output is correct
26 Correct 3 ms 12920 KB Output is correct
27 Correct 2 ms 12888 KB Output is correct
28 Correct 2 ms 12888 KB Output is correct
29 Correct 6 ms 12892 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 6 ms 12888 KB Output is correct
32 Correct 4 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 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 6 ms 12888 KB Output is correct
38 Correct 6 ms 12892 KB Output is correct
39 Correct 5 ms 12988 KB Output is correct
40 Correct 6 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 6 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 12892 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 12888 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 5 ms 12980 KB Output is correct
55 Correct 25 ms 14532 KB Output is correct
56 Correct 28 ms 14544 KB Output is correct
57 Correct 25 ms 14800 KB Output is correct
58 Correct 36 ms 14664 KB Output is correct
59 Correct 31 ms 14544 KB Output is correct
60 Correct 35 ms 14912 KB Output is correct
61 Correct 26 ms 14796 KB Output is correct
62 Correct 25 ms 14892 KB Output is correct
63 Correct 30 ms 14540 KB Output is correct
64 Correct 26 ms 14540 KB Output is correct
65 Correct 40 ms 14652 KB Output is correct
66 Correct 29 ms 14536 KB Output is correct
67 Correct 27 ms 14684 KB Output is correct
68 Correct 29 ms 14532 KB Output is correct
69 Correct 158 ms 14532 KB Output is correct
70 Correct 194 ms 14628 KB Output is correct
71 Correct 189 ms 14632 KB Output is correct
72 Correct 177 ms 14540 KB Output is correct
73 Correct 165 ms 14536 KB Output is correct
74 Correct 52 ms 14896 KB Output is correct
75 Correct 57 ms 14988 KB Output is correct
76 Correct 217 ms 14632 KB Output is correct
77 Correct 227 ms 14640 KB Output is correct
78 Correct 245 ms 14632 KB Output is correct
79 Correct 224 ms 14640 KB Output is correct
80 Correct 267 ms 14632 KB Output is correct
81 Correct 243 ms 14632 KB Output is correct
82 Correct 232 ms 14632 KB Output is correct
83 Correct 605 ms 13144 KB Output is correct
84 Correct 1443 ms 13396 KB Output is correct
85 Correct 632 ms 13392 KB Output is correct
86 Correct 538 ms 13224 KB Output is correct
87 Correct 1176 ms 13212 KB Output is correct
88 Correct 992 ms 13220 KB Output is correct
89 Correct 814 ms 13212 KB Output is correct
90 Correct 824 ms 13392 KB Output is correct
91 Correct 1211 ms 13212 KB Output is correct
92 Correct 1112 ms 13224 KB Output is correct
93 Correct 963 ms 13216 KB Output is correct
94 Correct 797 ms 14744 KB Output is correct
95 Correct 1738 ms 14816 KB Output is correct
96 Correct 913 ms 14932 KB Output is correct
97 Correct 679 ms 14748 KB Output is correct
98 Correct 676 ms 14932 KB Output is correct
99 Correct 1267 ms 15000 KB Output is correct
100 Correct 811 ms 15012 KB Output is correct
101 Correct 1020 ms 14740 KB Output is correct
102 Correct 1095 ms 14760 KB Output is correct
103 Correct 1042 ms 14752 KB Output is correct
104 Correct 1505 ms 14728 KB Output is correct
105 Correct 1336 ms 14744 KB Output is correct
106 Correct 1226 ms 14732 KB Output is correct
107 Correct 307 ms 14784 KB Output is correct
108 Correct 629 ms 14932 KB Output is correct
109 Correct 665 ms 14708 KB Output is correct
110 Correct 675 ms 14760 KB Output is correct
111 Correct 677 ms 14752 KB Output is correct
112 Correct 693 ms 14752 KB Output is correct
113 Correct 682 ms 14752 KB Output is correct
114 Correct 690 ms 14740 KB Output is correct
115 Correct 667 ms 14676 KB Output is correct
116 Correct 700 ms 14784 KB Output is correct