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Submission #1119053

# Submission time Handle Problem Language Result Execution time Memory
1119053 2024-11-26T14:20:58 Z PagodePaiva Strange Device (APIO19_strange_device) C++17
70 / 100
 5000 ms 460972 KB 
#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")
//#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
#define ll long long

using namespace std;
 
const long long N = 4000010;
long long res = 0;
long long n;
long long A, B;
vector <pair <long long, long long>> opp[N];
 
long long gdc(long long x, long long y){
    if(x < y) swap(x, y);
    return (y == 0 ? x : gdc(y, x%y));
}
 
void corrigir(vector <pair <long long, long long>> &v){
    vector <pair <long long, long long>> aux;
    for(auto [l, r] : v){
        if(r-l+1 >= A) {
            aux.push_back({0, A-1});
            continue;
        }
        l %= A;
        r %= A;
        if(l <= r) aux.push_back({l, r});
        else{
            aux.push_back({l, A-1});
            aux.push_back({0,r});
        }
    }
    v = aux;
    sort(v.begin(), v.end());
    aux.clear();
    for(auto [l, r] : v){
        //cout << l << ' ' << r << '\n';
        if(!aux.empty()){
            auto [a, b] = aux.back();
            if(b < l) aux.push_back({l, r});
            else{
                aux.pop_back();
                aux.push_back({a, max(b, r)});
            }
        }
        else{
            aux.push_back({l, r});
        }
    }
    v = aux;
    return;
}
 
int32_t main(){
    ios::sync_with_stdio(false); cin.tie(0);
    cin >> n >> A >> B;
    A = A/gdc(A, B+1);
    vector <pair <long long, long long>> queries;
    vector <array <long long, 3>> corners;
    if(log2(A) + log2(B) > 60){
        ll tot = 0;
        for(int i = 1; i <= n; ++i){
          ll t1, t2; cin >> t1 >> t2;
          tot += t2 - t1 + 1;
        }
        cout << tot;
        return 0;
    }
    for(int i = 1;i <= n;i++){
        long long l, r;
        cin >> l >> r;
        if(r-l+1 <= B and r%B >= l%B){
            long long d = r/B;
            corners.push_back({l%B, r%B, (d%A)});
            continue;
        }
        if(l%B != 0){
            long long d = (l+B-1)/B;
            corners.push_back({l%B, B-1, ((d-1)%A+A)%A});
        }
        long long a = (l+B-1)/B;
        long long b = r/B;
        if(r%B == B-1){
            queries.push_back({a, b});
            continue;
        }
        if(B*a <= B*b-1){
            queries.push_back({a, b-1});
        }
        if(r%B != B-1){
            corners.push_back({0, r%B, b%A});
        }
    }
    corrigir(queries);
    //set <long long> s;
    //map <long long, long long> m;
    vector <pair <long long, long long>> v;
    map <long long ,int> cnt;
    long long add = 0;
    //cout << "cte:\n";
    for(auto [l, r] : queries){
        //cout << l << ' ' << r << '\n';
        v.push_back({l, r});
        add += r-l+1;
        //s.insert(l);
    }
    //cout << '\n';
    set <long long> valores;
    for(auto [l, r, w] : corners){
        //cout << l << ' ' << r << ' ' << w << '\n';
        valores.insert(l);
        valores.insert(r+1);
    }
    map <long long, int> mapear;
    int con = 0;
    for(auto x : valores){
        mapear[x] = con;
        con++;
    }
    mapear[B] = con;
    con++;
    for(auto [l, r, w] : corners){
        opp[mapear[l]].push_back({w, 0});
        opp[mapear[r+1]].push_back({w, 1});
    }
    long long st = 0;
    for(auto [pos, valor] : mapear){
        res += (pos-st)*add;
        st = pos;
        for(auto [x, tp] : opp[valor]){
            if(tp == 0){
                long long d = upper_bound(v.begin(), v.end(), make_pair(x, (long long)1e18+1))-v.begin();
                if(d != 0) {
                    d--;
                    if(v[d].second >= x) continue;
                }
                if(cnt[x] == 0) add++;
                cnt[x]++;
            }
            else{
                auto it = cnt.find(x);
                if(it == cnt.end()) continue;
                auto [_, d] = *it;
                if(d == 1){
                    cnt.erase(it);
                    add--;
                    continue;
                }
                cnt[x]--;
            }   
        }
        //cout << add << '\n';
    }
    cout << res << '\n';
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 94288 KB Output is correct
2 Correct 43 ms 95432 KB Output is correct
3 Correct 39 ms 95580 KB Output is correct
4 Correct 30 ms 94288 KB Output is correct
5 Correct 33 ms 94288 KB Output is correct
6 Correct 33 ms 94288 KB Output is correct
7 Correct 30 ms 94288 KB Output is correct
8 Correct 31 ms 94288 KB Output is correct
9 Correct 31 ms 94288 KB Output is correct
10 Correct 30 ms 94384 KB Output is correct
11 Correct 29 ms 94288 KB Output is correct
12 Correct 31 ms 94288 KB Output is correct
13 Correct 28 ms 94200 KB Output is correct
14 Correct 31 ms 94400 KB Output is correct
15 Correct 30 ms 94288 KB Output is correct
16 Correct 35 ms 95444 KB Output is correct
17 Correct 106 ms 105900 KB Output is correct
18 Correct 31 ms 94288 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 94280 KB Output is correct
2 Correct 31 ms 94308 KB Output is correct
3 Correct 31 ms 94288 KB Output is correct
4 Correct 32 ms 94396 KB Output is correct
5 Correct 29 ms 94288 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 94208 KB Output is correct
2 Correct 33 ms 94544 KB Output is correct
3 Correct 33 ms 94800 KB Output is correct
4 Correct 33 ms 94676 KB Output is correct
5 Correct 294 ms 162656 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 94400 KB Output is correct
2 Correct 728 ms 251376 KB Output is correct
3 Correct 333 ms 180404 KB Output is correct
4 Correct 346 ms 179824 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 94400 KB Output is correct
2 Correct 728 ms 251376 KB Output is correct
3 Correct 333 ms 180404 KB Output is correct
4 Correct 346 ms 179824 KB Output is correct
5 Correct 27 ms 94292 KB Output is correct
6 Correct 1685 ms 338268 KB Output is correct
7 Correct 745 ms 228908 KB Output is correct
8 Correct 1843 ms 338164 KB Output is correct
9 Correct 1934 ms 338316 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 94400 KB Output is correct
2 Correct 728 ms 251376 KB Output is correct
3 Correct 333 ms 180404 KB Output is correct
4 Correct 346 ms 179824 KB Output is correct
5 Correct 33 ms 94292 KB Output is correct
6 Correct 129 ms 118232 KB Output is correct
7 Correct 163 ms 121260 KB Output is correct
8 Correct 157 ms 121292 KB Output is correct
9 Correct 145 ms 121396 KB Output is correct
10 Correct 127 ms 116416 KB Output is correct
11 Correct 194 ms 122364 KB Output is correct
12 Correct 138 ms 121280 KB Output is correct
13 Correct 188 ms 121796 KB Output is correct
14 Correct 141 ms 116144 KB Output is correct
15 Correct 227 ms 118880 KB Output is correct
16 Correct 234 ms 116212 KB Output is correct
17 Correct 431 ms 132452 KB Output is correct
18 Correct 2362 ms 359224 KB Output is correct
19 Correct 2884 ms 343844 KB Output is correct
20 Correct 2896 ms 342956 KB Output is correct
21 Correct 195 ms 121612 KB Output is correct
22 Correct 186 ms 121096 KB Output is correct
23 Correct 145 ms 127268 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 94384 KB Output is correct
2 Correct 173 ms 115892 KB Output is correct
3 Correct 225 ms 116260 KB Output is correct
4 Correct 4440 ms 363044 KB Output is correct
5 Correct 259 ms 116920 KB Output is correct
6 Correct 259 ms 116980 KB Output is correct
7 Correct 235 ms 116920 KB Output is correct
8 Correct 288 ms 118344 KB Output is correct
9 Correct 278 ms 118620 KB Output is correct
10 Correct 183 ms 116060 KB Output is correct
11 Correct 158 ms 116136 KB Output is correct
12 Correct 197 ms 115996 KB Output is correct
13 Correct 269 ms 116664 KB Output is correct
14 Correct 1824 ms 250012 KB Output is correct
15 Correct 135 ms 108728 KB Output is correct
16 Correct 2183 ms 312768 KB Output is correct
17 Correct 1062 ms 238784 KB Output is correct
18 Correct 28 ms 94292 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 94288 KB Output is correct
2 Correct 43 ms 95432 KB Output is correct
3 Correct 39 ms 95580 KB Output is correct
4 Correct 30 ms 94288 KB Output is correct
5 Correct 33 ms 94288 KB Output is correct
6 Correct 33 ms 94288 KB Output is correct
7 Correct 30 ms 94288 KB Output is correct
8 Correct 31 ms 94288 KB Output is correct
9 Correct 31 ms 94288 KB Output is correct
10 Correct 30 ms 94384 KB Output is correct
11 Correct 29 ms 94288 KB Output is correct
12 Correct 31 ms 94288 KB Output is correct
13 Correct 28 ms 94200 KB Output is correct
14 Correct 31 ms 94400 KB Output is correct
15 Correct 30 ms 94288 KB Output is correct
16 Correct 35 ms 95444 KB Output is correct
17 Correct 106 ms 105900 KB Output is correct
18 Correct 31 ms 94288 KB Output is correct
19 Correct 31 ms 94280 KB Output is correct
20 Correct 31 ms 94308 KB Output is correct
21 Correct 31 ms 94288 KB Output is correct
22 Correct 32 ms 94396 KB Output is correct
23 Correct 29 ms 94288 KB Output is correct
24 Correct 29 ms 94208 KB Output is correct
25 Correct 33 ms 94544 KB Output is correct
26 Correct 33 ms 94800 KB Output is correct
27 Correct 33 ms 94676 KB Output is correct
28 Correct 294 ms 162656 KB Output is correct
29 Correct 35 ms 94400 KB Output is correct
30 Correct 728 ms 251376 KB Output is correct
31 Correct 333 ms 180404 KB Output is correct
32 Correct 346 ms 179824 KB Output is correct
33 Correct 27 ms 94292 KB Output is correct
34 Correct 1685 ms 338268 KB Output is correct
35 Correct 745 ms 228908 KB Output is correct
36 Correct 1843 ms 338164 KB Output is correct
37 Correct 1934 ms 338316 KB Output is correct
38 Correct 33 ms 94292 KB Output is correct
39 Correct 129 ms 118232 KB Output is correct
40 Correct 163 ms 121260 KB Output is correct
41 Correct 157 ms 121292 KB Output is correct
42 Correct 145 ms 121396 KB Output is correct
43 Correct 127 ms 116416 KB Output is correct
44 Correct 194 ms 122364 KB Output is correct
45 Correct 138 ms 121280 KB Output is correct
46 Correct 188 ms 121796 KB Output is correct
47 Correct 141 ms 116144 KB Output is correct
48 Correct 227 ms 118880 KB Output is correct
49 Correct 234 ms 116212 KB Output is correct
50 Correct 431 ms 132452 KB Output is correct
51 Correct 2362 ms 359224 KB Output is correct
52 Correct 2884 ms 343844 KB Output is correct
53 Correct 2896 ms 342956 KB Output is correct
54 Correct 195 ms 121612 KB Output is correct
55 Correct 186 ms 121096 KB Output is correct
56 Correct 145 ms 127268 KB Output is correct
57 Correct 33 ms 94384 KB Output is correct
58 Correct 173 ms 115892 KB Output is correct
59 Correct 225 ms 116260 KB Output is correct
60 Correct 4440 ms 363044 KB Output is correct
61 Correct 259 ms 116920 KB Output is correct
62 Correct 259 ms 116980 KB Output is correct
63 Correct 235 ms 116920 KB Output is correct
64 Correct 288 ms 118344 KB Output is correct
65 Correct 278 ms 118620 KB Output is correct
66 Correct 183 ms 116060 KB Output is correct
67 Correct 158 ms 116136 KB Output is correct
68 Correct 197 ms 115996 KB Output is correct
69 Correct 269 ms 116664 KB Output is correct
70 Correct 1824 ms 250012 KB Output is correct
71 Correct 135 ms 108728 KB Output is correct
72 Correct 2183 ms 312768 KB Output is correct
73 Correct 1062 ms 238784 KB Output is correct
74 Correct 28 ms 94292 KB Output is correct
75 Correct 25 ms 94292 KB Output is correct
76 Correct 28 ms 94292 KB Output is correct
77 Correct 30 ms 94460 KB Output is correct
78 Correct 24 ms 94320 KB Output is correct
79 Correct 34 ms 96204 KB Output is correct
80 Correct 1920 ms 214492 KB Output is correct
81 Correct 4689 ms 362552 KB Output is correct
82 Correct 3865 ms 363320 KB Output is correct
83 Execution timed out 5061 ms 460972 KB Time limit exceeded
84 Halted 0 ms 0 KB -