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Submission #527020

# Submission time Handle Problem Language Result Execution time Memory
527020 2022-02-16T19:53:20 Z Lobo Strange Device (APIO19_strange_device) C++17
30 / 100
 448 ms 64036 KB 
#include<bits/stdc++.h>
using namespace std;
 
const long long inf = (long long) 4e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
 
#define maxn 

int gcd(int a, int b) {
    if(b == 0) return a;
    a%=b;
    return gcd(b,a);
}
 
void solve() {
    int n, a, b;
    cin >> n >> a >> b;
    int gc = gcd(a,b+1);
    int q = (b+1)/gc;
    int m;
    if(log2(a) + log2(b) + log2(q) - log2(b+1) > log2(inf)) m = inf;
    else m = (a*b*q)/(b+1);

    if(m == inf) map<int,int> asdf[1000000];
 
    vector<pair<int,int>> lr;
 
    for(int i = 1; i <= n; i++) {
        int l, r; cin >> l >> r;
 
        if(r-l+1 >= m) {
            lr.pb(mp(0,m-1));
        }
        else if(l/m != r/m) {
            //terminam em cantos diferentes
            l%= m;
            r%= m;
            //colocar l,m-1 e 0,r
            lr.pb(mp(l,m-1));
            lr.pb(mp(0,r));
        }
        else {
            l%= m;
            r%= m;
            lr.pb(mp(l,r));
        }
    }
 
    sort(all(lr));
 
    int l = 0;
    int r = -1;
    int ans = 0;
    for(auto x : lr) {
        int l1 = x.fr;
        int r1 = x.sc;

 
        if(l1 > r) {
            //conta o lr anterior e comeca um novo
            ans+= r-l+1;
            l = l1;
            r = r1;
        }
        r = max(r,r1);
    }
 
    ans+= r-l+1;
    cout << ans << endl;
 
 
}

int32_t main() {
    ios::sync_with_stdio(false); cin.tie(0);
 
    // freopen("in.in", "r", stdin);
    //freopen("out.out", "w", stdout);
 
    int tt = 1;
    // cin >> tt;
    while(tt--) solve();
 
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 47180 KB Output is correct
2 Correct 22 ms 47644 KB Output is correct
3 Correct 23 ms 47556 KB Output is correct
4 Correct 18 ms 47256 KB Output is correct
5 Correct 18 ms 47180 KB Output is correct
6 Correct 18 ms 47220 KB Output is correct
7 Correct 18 ms 47240 KB Output is correct
8 Correct 20 ms 47196 KB Output is correct
9 Correct 18 ms 47180 KB Output is correct
10 Correct 18 ms 47180 KB Output is correct
11 Correct 18 ms 47180 KB Output is correct
12 Correct 19 ms 47308 KB Output is correct
13 Correct 18 ms 47260 KB Output is correct
14 Correct 18 ms 47180 KB Output is correct
15 Correct 17 ms 47180 KB Output is correct
16 Correct 21 ms 47596 KB Output is correct
17 Correct 57 ms 49404 KB Output is correct
18 Correct 25 ms 47180 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 47164 KB Output is correct
2 Correct 17 ms 47180 KB Output is correct
3 Correct 18 ms 47180 KB Output is correct
4 Correct 18 ms 47180 KB Output is correct
5 Correct 26 ms 47268 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47156 KB Output is correct
2 Correct 18 ms 47180 KB Output is correct
3 Correct 17 ms 47260 KB Output is correct
4 Correct 18 ms 47184 KB Output is correct
5 Correct 288 ms 63728 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 47180 KB Output is correct
2 Correct 399 ms 63800 KB Output is correct
3 Correct 377 ms 63704 KB Output is correct
4 Correct 372 ms 63776 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 47180 KB Output is correct
2 Correct 399 ms 63800 KB Output is correct
3 Correct 377 ms 63704 KB Output is correct
4 Correct 372 ms 63776 KB Output is correct
5 Correct 19 ms 47220 KB Output is correct
6 Correct 383 ms 63832 KB Output is correct
7 Correct 403 ms 64036 KB Output is correct
8 Correct 380 ms 63796 KB Output is correct
9 Correct 417 ms 63908 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 47180 KB Output is correct
2 Correct 399 ms 63800 KB Output is correct
3 Correct 377 ms 63704 KB Output is correct
4 Correct 372 ms 63776 KB Output is correct
5 Correct 18 ms 47180 KB Output is correct
6 Correct 55 ms 49388 KB Output is correct
7 Correct 57 ms 49460 KB Output is correct
8 Correct 54 ms 49340 KB Output is correct
9 Correct 54 ms 49460 KB Output is correct
10 Correct 61 ms 49472 KB Output is correct
11 Correct 55 ms 49344 KB Output is correct
12 Correct 53 ms 49448 KB Output is correct
13 Incorrect 50 ms 49368 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 47180 KB Output is correct
2 Correct 60 ms 49404 KB Output is correct
3 Correct 56 ms 49396 KB Output is correct
4 Correct 448 ms 63768 KB Output is correct
5 Incorrect 50 ms 49428 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 47180 KB Output is correct
2 Correct 22 ms 47644 KB Output is correct
3 Correct 23 ms 47556 KB Output is correct
4 Correct 18 ms 47256 KB Output is correct
5 Correct 18 ms 47180 KB Output is correct
6 Correct 18 ms 47220 KB Output is correct
7 Correct 18 ms 47240 KB Output is correct
8 Correct 20 ms 47196 KB Output is correct
9 Correct 18 ms 47180 KB Output is correct
10 Correct 18 ms 47180 KB Output is correct
11 Correct 18 ms 47180 KB Output is correct
12 Correct 19 ms 47308 KB Output is correct
13 Correct 18 ms 47260 KB Output is correct
14 Correct 18 ms 47180 KB Output is correct
15 Correct 17 ms 47180 KB Output is correct
16 Correct 21 ms 47596 KB Output is correct
17 Correct 57 ms 49404 KB Output is correct
18 Correct 25 ms 47180 KB Output is correct
19 Correct 17 ms 47164 KB Output is correct
20 Correct 17 ms 47180 KB Output is correct
21 Correct 18 ms 47180 KB Output is correct
22 Correct 18 ms 47180 KB Output is correct
23 Correct 26 ms 47268 KB Output is correct
24 Correct 22 ms 47156 KB Output is correct
25 Correct 18 ms 47180 KB Output is correct
26 Correct 17 ms 47260 KB Output is correct
27 Correct 18 ms 47184 KB Output is correct
28 Correct 288 ms 63728 KB Output is correct
29 Correct 18 ms 47180 KB Output is correct
30 Correct 399 ms 63800 KB Output is correct
31 Correct 377 ms 63704 KB Output is correct
32 Correct 372 ms 63776 KB Output is correct
33 Correct 19 ms 47220 KB Output is correct
34 Correct 383 ms 63832 KB Output is correct
35 Correct 403 ms 64036 KB Output is correct
36 Correct 380 ms 63796 KB Output is correct
37 Correct 417 ms 63908 KB Output is correct
38 Correct 18 ms 47180 KB Output is correct
39 Correct 55 ms 49388 KB Output is correct
40 Correct 57 ms 49460 KB Output is correct
41 Correct 54 ms 49340 KB Output is correct
42 Correct 54 ms 49460 KB Output is correct
43 Correct 61 ms 49472 KB Output is correct
44 Correct 55 ms 49344 KB Output is correct
45 Correct 53 ms 49448 KB Output is correct
46 Incorrect 50 ms 49368 KB Output isn't correct
47 Halted 0 ms 0 KB -