oj.uz

Submission #602413

# Submission time Handle Problem Language Result Execution time Memory
602413 2022-07-23T05:29:59 Z AA_Surely Event Hopping 2 (JOI21_event2) C++14
100 / 100
 302 ms 34692 KB 
#include <bits/stdc++.h>

#define FOR(i, x, n) for(int i = x; i < n; i++)
#define F0R(i, n) FOR(i, 0, n)
#define ROF(i, x, n) for(int i = n - 1; i >= x; i--)
#define R0F(i, n) ROF(i, 0, n)

#define WTF cout << "WTF" << endl

#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define F first
#define S second
#define PB push_back

#define ALL(x) x.begin(), x.end()
#define RALL(x) x.rbegin(), x.rend()

using namespace std;

typedef long long LL;

typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;

typedef vector<int> VI;
typedef vector<LL> VLL;
typedef vector<PII> VPII;
typedef vector<PLL> VPLL;

const int N = 2e5 + 7;
const int LOG = 20;
const int INF = 1e9 + 7;

#define lc now << 1
#define rc now << 1 | 1

int n, k;
int ns[N][2], up[N][LOG];
int mnr[N];
VI comp;
set<int> ll, rr;

struct SegTree {
    int tree[N << 2], lz[N << 2];

    void shift(int now, int l, int r) {
        int mid = (l + r) >> 1;

        tree[lc] += lz[now] * (mid - l + 1);
        lz[lc] += lz[now];

        tree[rc] += lz[now] * (r - mid);
        lz[rc] += lz[now];

        lz[now] = 0;
        return;
    }

    void make1(int lq, int rq, int now = 1, int ls = 0, int rs = N - 1) {
        if (rq < lq || rq < ls || rs < lq) return;
        if (lq <= ls && rs <= rq) {
            tree[now] += (rs - ls + 1);
            lz[now] = 1;
            return;
        }

        int mid = (ls + rs) >> 1;
        shift(now, ls, rs);
        make1(lq, rq, lc, ls, mid);
        make1(lq, rq, rc, mid + 1, rs);

        tree[now] = tree[lc] + tree[rc];
    }

    int get(int lq, int rq, int now = 1, int ls = 0, int rs = N - 1) {
        if (rq < lq || rq < ls || rs < lq) return 0;
        if (lq <= ls && rs <= rq) return tree[now];
        
        int mid = (ls + rs) >> 1;
        shift(now, ls, rs);
        return get(lq, rq, lc, ls, mid) + get(lq, rq, rc, mid + 1, rs);
    }
} tree;

void init() {
    cin >> n >> k;

    F0R(i, n) {
        cin >> ns[i][0] >> ns[i][1];
        ns[i][1]--;
        comp.PB(ns[i][0]);
        comp.PB(ns[i][1]);
    }

    sort(ALL(comp));
    comp.resize(unique(ALL(comp)) - comp.begin());
    F0R(i, n) F0R(j, 2) ns[i][j] = lower_bound(ALL(comp), ns[i][j]) - comp.begin() + 1;

    return;
}

void precalc() {
    fill(mnr, mnr + N, INF);

    F0R(i, n) mnr[ ns[i][0] ] = min(mnr[ ns[i][0] ], ns[i][1]);
    up[N - 1][0] = mnr[N - 1];
    R0F(i, N - 1) up[i][0] = min(up[i + 1][0], mnr[i]);

    FOR(k, 1, LOG) F0R(i, N) {
        up[i][k] = INF;
        if (up[i][k - 1] < N - 1)
            up[i][k] = up[ up[i][k - 1] + 1 ][k - 1];
    }

    return;
}

int maxIn(int l, int r) {
    int cnt = 0;
    R0F(i, LOG) if (l < N && up[l][i] <= r) {
        cnt += (1 << i);
        l = up[l][i] + 1;
    }

    return cnt;
}

int main() {
    IOS;

    init();
    precalc();
    
    int mx = maxIn(0, N - 1);
    if (mx < k) return cout << -1, 0;
    
    rr.insert(0);
    ll.insert(N - 1);
    
    VI ans;
    F0R(i, n) {
        if (ans.size() == k || tree.get(ns[i][0], ns[i][1])) continue;
        int lft = *(--rr.lower_bound(ns[i][0]));
        int rgt = *ll.lower_bound(ns[i][1]);
        int tmp = mx - maxIn(lft + 1, rgt - 1) + maxIn(lft + 1, ns[i][0] - 1) + maxIn(ns[i][1] + 1, rgt - 1) + 1;

        if (tmp >= k) {
            mx = tmp;
            tree.make1(ns[i][0], ns[i][1]);
            ll.insert(ns[i][0]);
            rr.insert(ns[i][1]);
            ans.PB(i + 1);
        }
    }

    for(int on : ans) cout << on << '\n';
    return 0;
}

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:142:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  142 |         if (ans.size() == k || tree.get(ns[i][0], ns[i][1])) continue;
      |             ~~~~~~~~~~~^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 16764 KB Output is correct
2 Correct 34 ms 16724 KB Output is correct
3 Correct 35 ms 16724 KB Output is correct
4 Correct 202 ms 32108 KB Output is correct
5 Correct 223 ms 33328 KB Output is correct
6 Correct 200 ms 32648 KB Output is correct
7 Correct 176 ms 31308 KB Output is correct
8 Correct 210 ms 34068 KB Output is correct
9 Correct 219 ms 33328 KB Output is correct
10 Correct 192 ms 32648 KB Output is correct
11 Correct 177 ms 31232 KB Output is correct
12 Correct 207 ms 30348 KB Output is correct
13 Correct 153 ms 29892 KB Output is correct
14 Correct 156 ms 29296 KB Output is correct
15 Correct 154 ms 28332 KB Output is correct
16 Correct 112 ms 25596 KB Output is correct
17 Correct 105 ms 25392 KB Output is correct
18 Correct 108 ms 24860 KB Output is correct
19 Correct 106 ms 24500 KB Output is correct
20 Correct 99 ms 24520 KB Output is correct
21 Correct 102 ms 24452 KB Output is correct
22 Correct 103 ms 24388 KB Output is correct
23 Correct 114 ms 24392 KB Output is correct
24 Correct 112 ms 24448 KB Output is correct
25 Correct 112 ms 24384 KB Output is correct
26 Correct 109 ms 24444 KB Output is correct
27 Correct 116 ms 24576 KB Output is correct
28 Correct 77 ms 20348 KB Output is correct
29 Correct 82 ms 20300 KB Output is correct
30 Correct 72 ms 20352 KB Output is correct
31 Correct 77 ms 20300 KB Output is correct
32 Correct 77 ms 20356 KB Output is correct
33 Correct 88 ms 20316 KB Output is correct
34 Correct 131 ms 26444 KB Output is correct
35 Correct 108 ms 24324 KB Output is correct
36 Correct 105 ms 22244 KB Output is correct
37 Correct 153 ms 29488 KB Output is correct
38 Correct 140 ms 29152 KB Output is correct
39 Correct 140 ms 28852 KB Output is correct
40 Correct 169 ms 28544 KB Output is correct
41 Correct 132 ms 28116 KB Output is correct
42 Correct 83 ms 20348 KB Output is correct
43 Correct 151 ms 29312 KB Output is correct
44 Correct 170 ms 29140 KB Output is correct
45 Correct 147 ms 28956 KB Output is correct
46 Correct 144 ms 28680 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 16724 KB Output is correct
2 Correct 35 ms 16748 KB Output is correct
3 Correct 35 ms 16760 KB Output is correct
4 Correct 36 ms 16768 KB Output is correct
5 Correct 36 ms 16824 KB Output is correct
6 Correct 35 ms 16772 KB Output is correct
7 Correct 33 ms 16812 KB Output is correct
8 Correct 34 ms 16724 KB Output is correct
9 Correct 35 ms 16844 KB Output is correct
10 Correct 34 ms 16756 KB Output is correct
11 Correct 33 ms 16724 KB Output is correct
12 Correct 39 ms 16844 KB Output is correct
13 Correct 35 ms 16724 KB Output is correct
14 Correct 34 ms 16772 KB Output is correct
15 Correct 33 ms 16668 KB Output is correct
16 Correct 33 ms 16772 KB Output is correct
17 Correct 33 ms 16724 KB Output is correct
18 Correct 33 ms 16756 KB Output is correct
19 Correct 33 ms 16724 KB Output is correct
20 Correct 34 ms 16724 KB Output is correct
21 Correct 40 ms 16768 KB Output is correct
22 Correct 39 ms 16844 KB Output is correct
23 Correct 37 ms 16844 KB Output is correct
24 Correct 33 ms 16724 KB Output is correct
25 Correct 35 ms 16764 KB Output is correct
26 Correct 35 ms 16724 KB Output is correct
27 Correct 34 ms 16764 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 16724 KB Output is correct
2 Correct 35 ms 16748 KB Output is correct
3 Correct 35 ms 16760 KB Output is correct
4 Correct 36 ms 16768 KB Output is correct
5 Correct 36 ms 16824 KB Output is correct
6 Correct 35 ms 16772 KB Output is correct
7 Correct 33 ms 16812 KB Output is correct
8 Correct 34 ms 16724 KB Output is correct
9 Correct 35 ms 16844 KB Output is correct
10 Correct 34 ms 16756 KB Output is correct
11 Correct 33 ms 16724 KB Output is correct
12 Correct 39 ms 16844 KB Output is correct
13 Correct 35 ms 16724 KB Output is correct
14 Correct 34 ms 16772 KB Output is correct
15 Correct 33 ms 16668 KB Output is correct
16 Correct 33 ms 16772 KB Output is correct
17 Correct 33 ms 16724 KB Output is correct
18 Correct 33 ms 16756 KB Output is correct
19 Correct 33 ms 16724 KB Output is correct
20 Correct 34 ms 16724 KB Output is correct
21 Correct 40 ms 16768 KB Output is correct
22 Correct 39 ms 16844 KB Output is correct
23 Correct 37 ms 16844 KB Output is correct
24 Correct 33 ms 16724 KB Output is correct
25 Correct 35 ms 16764 KB Output is correct
26 Correct 35 ms 16724 KB Output is correct
27 Correct 34 ms 16764 KB Output is correct
28 Correct 36 ms 17040 KB Output is correct
29 Correct 37 ms 17008 KB Output is correct
30 Correct 38 ms 17112 KB Output is correct
31 Correct 36 ms 17040 KB Output is correct
32 Correct 35 ms 17044 KB Output is correct
33 Correct 35 ms 16852 KB Output is correct
34 Correct 36 ms 16860 KB Output is correct
35 Correct 40 ms 17296 KB Output is correct
36 Correct 40 ms 17324 KB Output is correct
37 Correct 36 ms 17276 KB Output is correct
38 Correct 40 ms 16912 KB Output is correct
39 Correct 37 ms 17304 KB Output is correct
40 Correct 37 ms 17228 KB Output is correct
41 Correct 38 ms 17176 KB Output is correct
42 Correct 35 ms 16800 KB Output is correct
43 Correct 39 ms 17152 KB Output is correct
44 Correct 43 ms 17156 KB Output is correct
45 Correct 36 ms 17036 KB Output is correct
46 Correct 34 ms 16904 KB Output is correct
47 Correct 36 ms 17040 KB Output is correct
48 Correct 37 ms 17028 KB Output is correct
49 Correct 42 ms 17024 KB Output is correct
50 Correct 36 ms 16852 KB Output is correct
51 Correct 40 ms 17040 KB Output is correct
52 Correct 35 ms 17108 KB Output is correct
53 Correct 35 ms 17040 KB Output is correct
54 Correct 35 ms 16800 KB Output is correct
55 Correct 37 ms 17300 KB Output is correct
56 Correct 44 ms 17372 KB Output is correct
57 Correct 38 ms 17356 KB Output is correct
58 Correct 38 ms 17292 KB Output is correct
59 Correct 36 ms 17300 KB Output is correct
60 Correct 36 ms 17296 KB Output is correct
61 Correct 44 ms 17348 KB Output is correct
62 Correct 37 ms 17228 KB Output is correct
63 Correct 37 ms 17228 KB Output is correct
64 Correct 35 ms 16852 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 16764 KB Output is correct
2 Correct 34 ms 16724 KB Output is correct
3 Correct 35 ms 16724 KB Output is correct
4 Correct 202 ms 32108 KB Output is correct
5 Correct 223 ms 33328 KB Output is correct
6 Correct 200 ms 32648 KB Output is correct
7 Correct 176 ms 31308 KB Output is correct
8 Correct 210 ms 34068 KB Output is correct
9 Correct 219 ms 33328 KB Output is correct
10 Correct 192 ms 32648 KB Output is correct
11 Correct 177 ms 31232 KB Output is correct
12 Correct 207 ms 30348 KB Output is correct
13 Correct 153 ms 29892 KB Output is correct
14 Correct 156 ms 29296 KB Output is correct
15 Correct 154 ms 28332 KB Output is correct
16 Correct 112 ms 25596 KB Output is correct
17 Correct 105 ms 25392 KB Output is correct
18 Correct 108 ms 24860 KB Output is correct
19 Correct 106 ms 24500 KB Output is correct
20 Correct 99 ms 24520 KB Output is correct
21 Correct 102 ms 24452 KB Output is correct
22 Correct 103 ms 24388 KB Output is correct
23 Correct 114 ms 24392 KB Output is correct
24 Correct 112 ms 24448 KB Output is correct
25 Correct 112 ms 24384 KB Output is correct
26 Correct 109 ms 24444 KB Output is correct
27 Correct 116 ms 24576 KB Output is correct
28 Correct 77 ms 20348 KB Output is correct
29 Correct 82 ms 20300 KB Output is correct
30 Correct 72 ms 20352 KB Output is correct
31 Correct 77 ms 20300 KB Output is correct
32 Correct 77 ms 20356 KB Output is correct
33 Correct 88 ms 20316 KB Output is correct
34 Correct 131 ms 26444 KB Output is correct
35 Correct 108 ms 24324 KB Output is correct
36 Correct 105 ms 22244 KB Output is correct
37 Correct 153 ms 29488 KB Output is correct
38 Correct 140 ms 29152 KB Output is correct
39 Correct 140 ms 28852 KB Output is correct
40 Correct 169 ms 28544 KB Output is correct
41 Correct 132 ms 28116 KB Output is correct
42 Correct 83 ms 20348 KB Output is correct
43 Correct 151 ms 29312 KB Output is correct
44 Correct 170 ms 29140 KB Output is correct
45 Correct 147 ms 28956 KB Output is correct
46 Correct 144 ms 28680 KB Output is correct
47 Correct 34 ms 16724 KB Output is correct
48 Correct 35 ms 16748 KB Output is correct
49 Correct 35 ms 16760 KB Output is correct
50 Correct 36 ms 16768 KB Output is correct
51 Correct 36 ms 16824 KB Output is correct
52 Correct 35 ms 16772 KB Output is correct
53 Correct 33 ms 16812 KB Output is correct
54 Correct 34 ms 16724 KB Output is correct
55 Correct 35 ms 16844 KB Output is correct
56 Correct 34 ms 16756 KB Output is correct
57 Correct 33 ms 16724 KB Output is correct
58 Correct 39 ms 16844 KB Output is correct
59 Correct 35 ms 16724 KB Output is correct
60 Correct 34 ms 16772 KB Output is correct
61 Correct 33 ms 16668 KB Output is correct
62 Correct 33 ms 16772 KB Output is correct
63 Correct 33 ms 16724 KB Output is correct
64 Correct 33 ms 16756 KB Output is correct
65 Correct 33 ms 16724 KB Output is correct
66 Correct 34 ms 16724 KB Output is correct
67 Correct 40 ms 16768 KB Output is correct
68 Correct 39 ms 16844 KB Output is correct
69 Correct 37 ms 16844 KB Output is correct
70 Correct 33 ms 16724 KB Output is correct
71 Correct 35 ms 16764 KB Output is correct
72 Correct 35 ms 16724 KB Output is correct
73 Correct 34 ms 16764 KB Output is correct
74 Correct 36 ms 17040 KB Output is correct
75 Correct 37 ms 17008 KB Output is correct
76 Correct 38 ms 17112 KB Output is correct
77 Correct 36 ms 17040 KB Output is correct
78 Correct 35 ms 17044 KB Output is correct
79 Correct 35 ms 16852 KB Output is correct
80 Correct 36 ms 16860 KB Output is correct
81 Correct 40 ms 17296 KB Output is correct
82 Correct 40 ms 17324 KB Output is correct
83 Correct 36 ms 17276 KB Output is correct
84 Correct 40 ms 16912 KB Output is correct
85 Correct 37 ms 17304 KB Output is correct
86 Correct 37 ms 17228 KB Output is correct
87 Correct 38 ms 17176 KB Output is correct
88 Correct 35 ms 16800 KB Output is correct
89 Correct 39 ms 17152 KB Output is correct
90 Correct 43 ms 17156 KB Output is correct
91 Correct 36 ms 17036 KB Output is correct
92 Correct 34 ms 16904 KB Output is correct
93 Correct 36 ms 17040 KB Output is correct
94 Correct 37 ms 17028 KB Output is correct
95 Correct 42 ms 17024 KB Output is correct
96 Correct 36 ms 16852 KB Output is correct
97 Correct 40 ms 17040 KB Output is correct
98 Correct 35 ms 17108 KB Output is correct
99 Correct 35 ms 17040 KB Output is correct
100 Correct 35 ms 16800 KB Output is correct
101 Correct 37 ms 17300 KB Output is correct
102 Correct 44 ms 17372 KB Output is correct
103 Correct 38 ms 17356 KB Output is correct
104 Correct 38 ms 17292 KB Output is correct
105 Correct 36 ms 17300 KB Output is correct
106 Correct 36 ms 17296 KB Output is correct
107 Correct 44 ms 17348 KB Output is correct
108 Correct 37 ms 17228 KB Output is correct
109 Correct 37 ms 17228 KB Output is correct
110 Correct 35 ms 16852 KB Output is correct
111 Correct 135 ms 24416 KB Output is correct
112 Correct 140 ms 24452 KB Output is correct
113 Correct 146 ms 24488 KB Output is correct
114 Correct 135 ms 24388 KB Output is correct
115 Correct 134 ms 24496 KB Output is correct
116 Correct 91 ms 20348 KB Output is correct
117 Correct 92 ms 20344 KB Output is correct
118 Correct 302 ms 34048 KB Output is correct
119 Correct 252 ms 32980 KB Output is correct
120 Correct 196 ms 29048 KB Output is correct
121 Correct 102 ms 20344 KB Output is correct
122 Correct 236 ms 30244 KB Output is correct
123 Correct 233 ms 29692 KB Output is correct
124 Correct 201 ms 29104 KB Output is correct
125 Correct 95 ms 20296 KB Output is correct
126 Correct 150 ms 25600 KB Output is correct
127 Correct 170 ms 25464 KB Output is correct
128 Correct 143 ms 25344 KB Output is correct
129 Correct 94 ms 20344 KB Output is correct
130 Correct 133 ms 24568 KB Output is correct
131 Correct 143 ms 24492 KB Output is correct
132 Correct 159 ms 24488 KB Output is correct
133 Correct 102 ms 20312 KB Output is correct
134 Correct 145 ms 24452 KB Output is correct
135 Correct 150 ms 24396 KB Output is correct
136 Correct 123 ms 24392 KB Output is correct
137 Correct 92 ms 20340 KB Output is correct
138 Correct 144 ms 24500 KB Output is correct
139 Correct 159 ms 24484 KB Output is correct
140 Correct 101 ms 24500 KB Output is correct
141 Correct 97 ms 20356 KB Output is correct
142 Correct 231 ms 34692 KB Output is correct
143 Correct 224 ms 34636 KB Output is correct
144 Correct 226 ms 34632 KB Output is correct
145 Correct 232 ms 34596 KB Output is correct
146 Correct 217 ms 34248 KB Output is correct
147 Correct 244 ms 33996 KB Output is correct
148 Correct 189 ms 33688 KB Output is correct
149 Correct 201 ms 33508 KB Output is correct
150 Correct 171 ms 33200 KB Output is correct
151 Correct 166 ms 31728 KB Output is correct
152 Correct 78 ms 20344 KB Output is correct
153 Correct 191 ms 34680 KB Output is correct
154 Correct 186 ms 34356 KB Output is correct
155 Correct 194 ms 34056 KB Output is correct
156 Correct 176 ms 33792 KB Output is correct
157 Correct 197 ms 33484 KB Output is correct
158 Correct 187 ms 33320 KB Output is correct
159 Correct 161 ms 31756 KB Output is correct
160 Correct 73 ms 20296 KB Output is correct
161 Correct 191 ms 29564 KB Output is correct
162 Correct 196 ms 29252 KB Output is correct
163 Correct 201 ms 29068 KB Output is correct
164 Correct 171 ms 28920 KB Output is correct
165 Correct 171 ms 28612 KB Output is correct
166 Correct 91 ms 20340 KB Output is correct
167 Correct 144 ms 29320 KB Output is correct
168 Correct 147 ms 29048 KB Output is correct
169 Correct 142 ms 28920 KB Output is correct
170 Correct 156 ms 28740 KB Output is correct
171 Correct 132 ms 27872 KB Output is correct
172 Correct 138 ms 28528 KB Output is correct
173 Correct 232 ms 29568 KB Output is correct
174 Correct 203 ms 29440 KB Output is correct
175 Correct 208 ms 29436 KB Output is correct
176 Correct 173 ms 28456 KB Output is correct