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Submission #626984

# Submission time Handle Problem Language Result Execution time Memory
626984 2022-08-12T04:06:22 Z socpite Strange Device (APIO19_strange_device) C++14
100 / 100
 3924 ms 259124 KB 
#include<bits/stdc++.h>
using namespace std;

#define f first
#define s second

typedef long long ll;

const int maxn = 2e6+5;

int n, sz;
ll a, b;

pair<ll, ll> A[maxn];
vector<pair<int, int>> qq[maxn];
map<ll, int> mp;
vector<pair<ll, ll>> rng, vec;
vector<ll> pos;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> a >> b;
    ll cyc = a/__gcd(a, b+1);
    for(int i = 0; i < n; i++){
        cin >> A[i].f >> A[i].s;
        ll lb = A[i].f/b+1, rb = A[i].s/b-1;
        if(rb >= lb){
            if(rb - lb+1 >= cyc)rng.push_back({0, cyc-1});
            else{
                ll lm = lb%cyc, rm = rb%cyc;
                if(lm <= rm)vec.push_back({lm, rm});
                else{
                    vec.push_back({lm, cyc-1});
                    vec.push_back({0, rm});
                }
            }
        }
        pos.push_back(A[i].f%b);
        pos.push_back(A[i].s%b + 1);
    }
    pos.push_back(-1);
    pos.push_back(0);
    pos.push_back(b);
    sort(pos.begin(), pos.end());
    pos.erase(unique(pos.begin(), pos.end()), pos.end());
    sort(vec.begin(), vec.end());
    for(auto v: vec){
        if(rng.empty() || rng.back().s < v.f-1)rng.push_back(v);
        else rng.back().s = max(rng.back().s, v.s);
    }
    sz = pos.size()-1;
    for(int i = 0; i < n; i++){
        ll lb = A[i].f/b, rb = A[i].s/b;
        if(lb == rb){
            int pp = lower_bound(rng.begin(), rng.end(), make_pair(lb%cyc, cyc+1))-rng.begin()-1;
            if(pp < 0 || rng[pp].s < lb%cyc){
                int ql = lower_bound(pos.begin(), pos.end(), A[i].f%b)-pos.begin(), qr = upper_bound(pos.begin(), pos.end(), A[i].s%b) - pos.begin();
                qq[ql].push_back({lb%cyc, 0});
                qq[qr].push_back({lb%cyc, 1});
            }
        }
        else{
            int pp = lower_bound(rng.begin(), rng.end(), make_pair(lb%cyc, cyc+1))-rng.begin()-1;
            if(pp < 0 || rng[pp].s < lb%cyc){
                int ql = lower_bound(pos.begin(), pos.end(), A[i].f%b)-pos.begin();
                qq[ql].push_back({lb%cyc, 0});
            }
            pp = lower_bound(rng.begin(), rng.end(), make_pair(rb%cyc, cyc+1))-rng.begin()-1;
            if(pp < 0 || rng[pp].s < rb%cyc){
                int qr = upper_bound(pos.begin(), pos.end(), A[i].s%b) - pos.begin();
                qq[1].push_back({rb%cyc, 0});
                qq[qr].push_back({rb%cyc, 1});
            }
        }
    }
    int crr = 0;
    ll ans = 0;
    for(int i = 1; i < sz; i++){
        for(auto v: qq[i]){
            if(v.s){
                mp[v.f]--;
                if(!mp[v.f])crr--;
            }
            else{
                if(!mp[v.f])crr++;
                mp[v.f]++;
            }
        }
        ans += (pos[i+1]-pos[i])*crr;
    }
    for(auto v: rng){
        ans+=b*(v.s-v.f+1);
    }
    cout << ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 47264 KB Output is correct
2 Correct 34 ms 47832 KB Output is correct
3 Correct 36 ms 47828 KB Output is correct
4 Correct 30 ms 47260 KB Output is correct
5 Correct 26 ms 47188 KB Output is correct
6 Correct 25 ms 47288 KB Output is correct
7 Correct 26 ms 47188 KB Output is correct
8 Correct 26 ms 47228 KB Output is correct
9 Correct 24 ms 47212 KB Output is correct
10 Correct 25 ms 47248 KB Output is correct
11 Correct 25 ms 47284 KB Output is correct
12 Correct 31 ms 47248 KB Output is correct
13 Correct 24 ms 47200 KB Output is correct
14 Correct 26 ms 47188 KB Output is correct
15 Correct 29 ms 47296 KB Output is correct
16 Correct 30 ms 47912 KB Output is correct
17 Correct 82 ms 52672 KB Output is correct
18 Correct 25 ms 47188 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 47264 KB Output is correct
2 Correct 24 ms 47188 KB Output is correct
3 Correct 24 ms 47204 KB Output is correct
4 Correct 26 ms 47212 KB Output is correct
5 Correct 29 ms 47216 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47188 KB Output is correct
2 Correct 23 ms 47444 KB Output is correct
3 Correct 23 ms 47272 KB Output is correct
4 Correct 24 ms 47332 KB Output is correct
5 Correct 463 ms 126300 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 47248 KB Output is correct
2 Correct 813 ms 157180 KB Output is correct
3 Correct 1172 ms 259124 KB Output is correct
4 Correct 1898 ms 259116 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 47248 KB Output is correct
2 Correct 813 ms 157180 KB Output is correct
3 Correct 1172 ms 259124 KB Output is correct
4 Correct 1898 ms 259116 KB Output is correct
5 Correct 22 ms 47236 KB Output is correct
6 Correct 1459 ms 195952 KB Output is correct
7 Correct 838 ms 118188 KB Output is correct
8 Correct 1135 ms 195960 KB Output is correct
9 Correct 1763 ms 196024 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 47248 KB Output is correct
2 Correct 813 ms 157180 KB Output is correct
3 Correct 1172 ms 259124 KB Output is correct
4 Correct 1898 ms 259116 KB Output is correct
5 Correct 28 ms 47188 KB Output is correct
6 Correct 123 ms 59076 KB Output is correct
7 Correct 154 ms 62748 KB Output is correct
8 Correct 141 ms 63144 KB Output is correct
9 Correct 170 ms 63200 KB Output is correct
10 Correct 137 ms 58088 KB Output is correct
11 Correct 178 ms 62940 KB Output is correct
12 Correct 150 ms 62692 KB Output is correct
13 Correct 237 ms 62412 KB Output is correct
14 Correct 103 ms 53588 KB Output is correct
15 Correct 256 ms 60116 KB Output is correct
16 Correct 136 ms 53564 KB Output is correct
17 Correct 251 ms 63732 KB Output is correct
18 Correct 2220 ms 204856 KB Output is correct
19 Correct 2709 ms 199472 KB Output is correct
20 Correct 2316 ms 199556 KB Output is correct
21 Correct 224 ms 62572 KB Output is correct
22 Correct 176 ms 62448 KB Output is correct
23 Correct 220 ms 76868 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 47256 KB Output is correct
2 Correct 121 ms 53544 KB Output is correct
3 Correct 151 ms 53576 KB Output is correct
4 Correct 2867 ms 138412 KB Output is correct
5 Correct 153 ms 54152 KB Output is correct
6 Correct 156 ms 53988 KB Output is correct
7 Correct 163 ms 54264 KB Output is correct
8 Correct 205 ms 55036 KB Output is correct
9 Correct 193 ms 55104 KB Output is correct
10 Correct 114 ms 53592 KB Output is correct
11 Correct 119 ms 53508 KB Output is correct
12 Correct 115 ms 53500 KB Output is correct
13 Correct 155 ms 54160 KB Output is correct
14 Correct 1163 ms 102372 KB Output is correct
15 Correct 305 ms 52936 KB Output is correct
16 Correct 1012 ms 109896 KB Output is correct
17 Correct 1634 ms 123968 KB Output is correct
18 Correct 24 ms 47188 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 47264 KB Output is correct
2 Correct 34 ms 47832 KB Output is correct
3 Correct 36 ms 47828 KB Output is correct
4 Correct 30 ms 47260 KB Output is correct
5 Correct 26 ms 47188 KB Output is correct
6 Correct 25 ms 47288 KB Output is correct
7 Correct 26 ms 47188 KB Output is correct
8 Correct 26 ms 47228 KB Output is correct
9 Correct 24 ms 47212 KB Output is correct
10 Correct 25 ms 47248 KB Output is correct
11 Correct 25 ms 47284 KB Output is correct
12 Correct 31 ms 47248 KB Output is correct
13 Correct 24 ms 47200 KB Output is correct
14 Correct 26 ms 47188 KB Output is correct
15 Correct 29 ms 47296 KB Output is correct
16 Correct 30 ms 47912 KB Output is correct
17 Correct 82 ms 52672 KB Output is correct
18 Correct 25 ms 47188 KB Output is correct
19 Correct 25 ms 47264 KB Output is correct
20 Correct 24 ms 47188 KB Output is correct
21 Correct 24 ms 47204 KB Output is correct
22 Correct 26 ms 47212 KB Output is correct
23 Correct 29 ms 47216 KB Output is correct
24 Correct 22 ms 47188 KB Output is correct
25 Correct 23 ms 47444 KB Output is correct
26 Correct 23 ms 47272 KB Output is correct
27 Correct 24 ms 47332 KB Output is correct
28 Correct 463 ms 126300 KB Output is correct
29 Correct 24 ms 47248 KB Output is correct
30 Correct 813 ms 157180 KB Output is correct
31 Correct 1172 ms 259124 KB Output is correct
32 Correct 1898 ms 259116 KB Output is correct
33 Correct 22 ms 47236 KB Output is correct
34 Correct 1459 ms 195952 KB Output is correct
35 Correct 838 ms 118188 KB Output is correct
36 Correct 1135 ms 195960 KB Output is correct
37 Correct 1763 ms 196024 KB Output is correct
38 Correct 28 ms 47188 KB Output is correct
39 Correct 123 ms 59076 KB Output is correct
40 Correct 154 ms 62748 KB Output is correct
41 Correct 141 ms 63144 KB Output is correct
42 Correct 170 ms 63200 KB Output is correct
43 Correct 137 ms 58088 KB Output is correct
44 Correct 178 ms 62940 KB Output is correct
45 Correct 150 ms 62692 KB Output is correct
46 Correct 237 ms 62412 KB Output is correct
47 Correct 103 ms 53588 KB Output is correct
48 Correct 256 ms 60116 KB Output is correct
49 Correct 136 ms 53564 KB Output is correct
50 Correct 251 ms 63732 KB Output is correct
51 Correct 2220 ms 204856 KB Output is correct
52 Correct 2709 ms 199472 KB Output is correct
53 Correct 2316 ms 199556 KB Output is correct
54 Correct 224 ms 62572 KB Output is correct
55 Correct 176 ms 62448 KB Output is correct
56 Correct 220 ms 76868 KB Output is correct
57 Correct 32 ms 47256 KB Output is correct
58 Correct 121 ms 53544 KB Output is correct
59 Correct 151 ms 53576 KB Output is correct
60 Correct 2867 ms 138412 KB Output is correct
61 Correct 153 ms 54152 KB Output is correct
62 Correct 156 ms 53988 KB Output is correct
63 Correct 163 ms 54264 KB Output is correct
64 Correct 205 ms 55036 KB Output is correct
65 Correct 193 ms 55104 KB Output is correct
66 Correct 114 ms 53592 KB Output is correct
67 Correct 119 ms 53508 KB Output is correct
68 Correct 115 ms 53500 KB Output is correct
69 Correct 155 ms 54160 KB Output is correct
70 Correct 1163 ms 102372 KB Output is correct
71 Correct 305 ms 52936 KB Output is correct
72 Correct 1012 ms 109896 KB Output is correct
73 Correct 1634 ms 123968 KB Output is correct
74 Correct 24 ms 47188 KB Output is correct
75 Correct 25 ms 47188 KB Output is correct
76 Correct 24 ms 47288 KB Output is correct
77 Correct 27 ms 47236 KB Output is correct
78 Correct 28 ms 47248 KB Output is correct
79 Correct 39 ms 48288 KB Output is correct
80 Correct 1347 ms 100752 KB Output is correct
81 Correct 3270 ms 138528 KB Output is correct
82 Correct 2884 ms 202228 KB Output is correct
83 Correct 3795 ms 211796 KB Output is correct
84 Correct 3924 ms 248904 KB Output is correct
85 Correct 3346 ms 241316 KB Output is correct
86 Correct 218 ms 89236 KB Output is correct
87 Correct 26 ms 47292 KB Output is correct