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Submission #781046

# Submission time Handle Problem Language Result Execution time Memory
781046 2023-07-12T16:21:52 Z cig32 Osumnjičeni (COCI21_osumnjiceni) C++17
110 / 110
 757 ms 51240 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 4e5 + 4;
struct node{
    int upd, ans;
} a[4*MAXN];
void range_add(int l,int r,int constl,int constr,int idx,int val){
    if(l<=constl && constr<=r){
        a[idx].upd += val;
        a[idx].ans += (constr-constl+1) * val;
        return;
    }
    int mid = (constl + constr) >> 1;
    if(mid<l || r<constl) range_add(l, r, mid+1, constr, 2*idx+2, val);
    else if(constr<l || r<mid+1) range_add(l, r, constl, mid, 2*idx+1, val);
    else{
        range_add(l, r, constl, mid, 2*idx+1, val);
        range_add(l, r, mid+1, constr, 2*idx+2, val);
    }
    a[idx].ans = a[2*idx+1].ans + a[2*idx+2].ans + (constr-constl+1) * a[idx].upd;
}
int query_sum(int l,int r,int constl,int constr,int idx){
    if(l<=constl && constr<=r) return a[idx].ans;
    int mid = (constl + constr) >> 1;
    int sz = min(r, constr) - max(l, constl) + 1;
    if(mid<l || r<constl) return sz * a[idx].upd + query_sum(l, r, mid+1, constr, 2*idx+2);
    else if(constr<l || r<mid+1) return sz * a[idx].upd + query_sum(l, r, constl, mid, 2*idx+1);
    else{
        return sz * a[idx].upd + query_sum(l, r, constl, mid, 2*idx+1) + query_sum(l, r, mid+1, constr, 2*idx+2);
    }
}
signed main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int n; cin >> n;
    int l[n+1], r[n+1];
    for(int i=1; i<=n; i++) cin >> l[i] >> r[i];
    int s[2*n];
    unordered_map<int, int> is;
    for(int i=1; i<=n; i++) {
        s[2*i-2] = l[i];
        s[2*i-1] = r[i];
    }
    sort(s, s+2*n);
    int it=0;
    for(int i=0; i<2*n; i++) {
        if(s[i] != s[i-1] || i == 0) is[s[i]] = ++it;
    }
    for(int i=1; i<=n; i++) {
        l[i] = is[l[i]];
        r[i] = is[r[i]];
    }
    int d[n+1];
    int lp = 1, rp = 1;
    range_add(l[1], r[1], 0, MAXN-1, 0, 1);
    while(!(lp == n && rp == n)) {
        d[lp] = rp;
        if(rp<n && query_sum(l[rp+1], r[rp+1], 0, MAXN-1, 0) == 0) {
            range_add(l[rp+1], r[rp+1], 0, MAXN-1, 0, 1);
            rp++;
        }
        else {
            range_add(l[lp], r[lp], 0, MAXN-1, 0, -1);
            lp++;
            if(rp < lp) {
                rp++;
                range_add(l[rp], r[rp], 0, MAXN-1, 0, 1);
            }
        }
    }
    d[n] = n;
    int st[18][n+2];
    for(int i=1; i<=n; i++) st[0][i] = d[i] + 1;
    st[0][n + 1] = n + 1;
    for(int i=1; i<18; i++) {
        for(int j=1; j<=n+1; j++) {
            st[i][j] = st[i-1][st[i-1][j]];
        }
    }
    int q0; cin >> q0;
    while(q0--) {
        int p, q; cin >> p >> q;
        int k = 32 - __builtin_clz(q-p+1) - 1;
        int ans = 0;
        for(int i=k; i>=0; i--) {
            if(st[i][p] <= q) {
                p = st[i][p];
                ans += (1<<i);
            }
        }
        while(p <= q) {
            ans++;
            p = d[p] + 1;
        }
        cout << ans << endl;
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 369 ms 46592 KB Output is correct
2 Correct 401 ms 45960 KB Output is correct
3 Correct 366 ms 46016 KB Output is correct
4 Correct 354 ms 46524 KB Output is correct
5 Correct 419 ms 48296 KB Output is correct
6 Correct 85 ms 20124 KB Output is correct
7 Correct 92 ms 20500 KB Output is correct
8 Correct 99 ms 20568 KB Output is correct
9 Correct 125 ms 21256 KB Output is correct
10 Correct 104 ms 20420 KB Output is correct
11 Correct 243 ms 46928 KB Output is correct
12 Correct 219 ms 44468 KB Output is correct
13 Correct 214 ms 44400 KB Output is correct
14 Correct 327 ms 46900 KB Output is correct
15 Correct 262 ms 45920 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 95 ms 21528 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 1452 KB Output is correct
2 Correct 12 ms 1492 KB Output is correct
3 Correct 12 ms 1396 KB Output is correct
4 Correct 12 ms 1492 KB Output is correct
5 Correct 14 ms 1492 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 9 ms 856 KB Output is correct
8 Correct 8 ms 852 KB Output is correct
9 Correct 9 ms 852 KB Output is correct
10 Correct 8 ms 852 KB Output is correct
11 Correct 10 ms 1520 KB Output is correct
12 Correct 10 ms 1364 KB Output is correct
13 Correct 10 ms 1364 KB Output is correct
14 Correct 12 ms 1492 KB Output is correct
15 Correct 11 ms 1492 KB Output is correct
16 Correct 0 ms 328 KB Output is correct
17 Correct 8 ms 852 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 1452 KB Output is correct
2 Correct 12 ms 1492 KB Output is correct
3 Correct 12 ms 1396 KB Output is correct
4 Correct 12 ms 1492 KB Output is correct
5 Correct 14 ms 1492 KB Output is correct
6 Correct 10 ms 976 KB Output is correct
7 Correct 9 ms 856 KB Output is correct
8 Correct 8 ms 852 KB Output is correct
9 Correct 9 ms 852 KB Output is correct
10 Correct 8 ms 852 KB Output is correct
11 Correct 10 ms 1520 KB Output is correct
12 Correct 10 ms 1364 KB Output is correct
13 Correct 10 ms 1364 KB Output is correct
14 Correct 12 ms 1492 KB Output is correct
15 Correct 11 ms 1492 KB Output is correct
16 Correct 0 ms 328 KB Output is correct
17 Correct 8 ms 852 KB Output is correct
18 Correct 251 ms 4184 KB Output is correct
19 Correct 223 ms 3792 KB Output is correct
20 Correct 246 ms 4204 KB Output is correct
21 Correct 238 ms 3936 KB Output is correct
22 Correct 234 ms 3916 KB Output is correct
23 Correct 225 ms 3404 KB Output is correct
24 Correct 253 ms 3524 KB Output is correct
25 Correct 245 ms 3524 KB Output is correct
26 Correct 265 ms 3400 KB Output is correct
27 Correct 230 ms 3296 KB Output is correct
28 Correct 213 ms 3408 KB Output is correct
29 Correct 225 ms 3612 KB Output is correct
30 Correct 221 ms 3612 KB Output is correct
31 Correct 228 ms 3524 KB Output is correct
32 Correct 230 ms 3580 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 228 ms 3220 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 364 ms 48368 KB Output is correct
2 Correct 345 ms 47504 KB Output is correct
3 Correct 338 ms 44712 KB Output is correct
4 Correct 313 ms 44308 KB Output is correct
5 Correct 362 ms 45500 KB Output is correct
6 Correct 85 ms 20304 KB Output is correct
7 Correct 102 ms 20120 KB Output is correct
8 Correct 103 ms 20204 KB Output is correct
9 Correct 94 ms 20156 KB Output is correct
10 Correct 109 ms 21672 KB Output is correct
11 Correct 217 ms 44064 KB Output is correct
12 Correct 270 ms 47804 KB Output is correct
13 Correct 223 ms 44316 KB Output is correct
14 Correct 229 ms 45280 KB Output is correct
15 Correct 318 ms 47608 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 91 ms 20540 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 369 ms 46592 KB Output is correct
2 Correct 401 ms 45960 KB Output is correct
3 Correct 366 ms 46016 KB Output is correct
4 Correct 354 ms 46524 KB Output is correct
5 Correct 419 ms 48296 KB Output is correct
6 Correct 85 ms 20124 KB Output is correct
7 Correct 92 ms 20500 KB Output is correct
8 Correct 99 ms 20568 KB Output is correct
9 Correct 125 ms 21256 KB Output is correct
10 Correct 104 ms 20420 KB Output is correct
11 Correct 243 ms 46928 KB Output is correct
12 Correct 219 ms 44468 KB Output is correct
13 Correct 214 ms 44400 KB Output is correct
14 Correct 327 ms 46900 KB Output is correct
15 Correct 262 ms 45920 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 95 ms 21528 KB Output is correct
18 Correct 13 ms 1452 KB Output is correct
19 Correct 12 ms 1492 KB Output is correct
20 Correct 12 ms 1396 KB Output is correct
21 Correct 12 ms 1492 KB Output is correct
22 Correct 14 ms 1492 KB Output is correct
23 Correct 10 ms 976 KB Output is correct
24 Correct 9 ms 856 KB Output is correct
25 Correct 8 ms 852 KB Output is correct
26 Correct 9 ms 852 KB Output is correct
27 Correct 8 ms 852 KB Output is correct
28 Correct 10 ms 1520 KB Output is correct
29 Correct 10 ms 1364 KB Output is correct
30 Correct 10 ms 1364 KB Output is correct
31 Correct 12 ms 1492 KB Output is correct
32 Correct 11 ms 1492 KB Output is correct
33 Correct 0 ms 328 KB Output is correct
34 Correct 8 ms 852 KB Output is correct
35 Correct 251 ms 4184 KB Output is correct
36 Correct 223 ms 3792 KB Output is correct
37 Correct 246 ms 4204 KB Output is correct
38 Correct 238 ms 3936 KB Output is correct
39 Correct 234 ms 3916 KB Output is correct
40 Correct 225 ms 3404 KB Output is correct
41 Correct 253 ms 3524 KB Output is correct
42 Correct 245 ms 3524 KB Output is correct
43 Correct 265 ms 3400 KB Output is correct
44 Correct 230 ms 3296 KB Output is correct
45 Correct 213 ms 3408 KB Output is correct
46 Correct 225 ms 3612 KB Output is correct
47 Correct 221 ms 3612 KB Output is correct
48 Correct 228 ms 3524 KB Output is correct
49 Correct 230 ms 3580 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 228 ms 3220 KB Output is correct
52 Correct 364 ms 48368 KB Output is correct
53 Correct 345 ms 47504 KB Output is correct
54 Correct 338 ms 44712 KB Output is correct
55 Correct 313 ms 44308 KB Output is correct
56 Correct 362 ms 45500 KB Output is correct
57 Correct 85 ms 20304 KB Output is correct
58 Correct 102 ms 20120 KB Output is correct
59 Correct 103 ms 20204 KB Output is correct
60 Correct 94 ms 20156 KB Output is correct
61 Correct 109 ms 21672 KB Output is correct
62 Correct 217 ms 44064 KB Output is correct
63 Correct 270 ms 47804 KB Output is correct
64 Correct 223 ms 44316 KB Output is correct
65 Correct 229 ms 45280 KB Output is correct
66 Correct 318 ms 47608 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 91 ms 20540 KB Output is correct
69 Correct 657 ms 49024 KB Output is correct
70 Correct 757 ms 51240 KB Output is correct
71 Correct 613 ms 47808 KB Output is correct
72 Correct 686 ms 49952 KB Output is correct
73 Correct 687 ms 49444 KB Output is correct
74 Correct 405 ms 25504 KB Output is correct
75 Correct 380 ms 23884 KB Output is correct
76 Correct 424 ms 25652 KB Output is correct
77 Correct 395 ms 23640 KB Output is correct
78 Correct 408 ms 24124 KB Output is correct
79 Correct 496 ms 50464 KB Output is correct
80 Correct 466 ms 47108 KB Output is correct
81 Correct 495 ms 46900 KB Output is correct
82 Correct 479 ms 49300 KB Output is correct
83 Correct 494 ms 47208 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 323 ms 23752 KB Output is correct