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Submission #527023

# Submission time Handle Problem Language Result Execution time Memory
527023 2022-02-16T19:55:47 Z Lobo Strange Device (APIO19_strange_device) C++17
30 / 100
 450 ms 47268 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);

    int af = 2;
    if(m == inf) {
        af = 1000000;
    }
    map<int,int> asdf[af];
 
    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 1 ms 256 KB Output is correct
2 Correct 6 ms 592 KB Output is correct
3 Correct 4 ms 588 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 608 KB Output is correct
17 Correct 41 ms 2504 KB Output is correct
18 Correct 28 ms 47180 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 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 0 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 280 ms 16740 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 403 ms 16792 KB Output is correct
3 Correct 398 ms 16816 KB Output is correct
4 Correct 418 ms 16792 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 403 ms 16792 KB Output is correct
3 Correct 398 ms 16816 KB Output is correct
4 Correct 418 ms 16792 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 388 ms 16776 KB Output is correct
7 Correct 389 ms 16848 KB Output is correct
8 Correct 362 ms 16816 KB Output is correct
9 Correct 406 ms 16864 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 403 ms 16792 KB Output is correct
3 Correct 398 ms 16816 KB Output is correct
4 Correct 418 ms 16792 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 36 ms 2380 KB Output is correct
7 Correct 40 ms 2504 KB Output is correct
8 Correct 41 ms 2412 KB Output is correct
9 Correct 42 ms 2408 KB Output is correct
10 Correct 44 ms 2504 KB Output is correct
11 Correct 47 ms 2404 KB Output is correct
12 Correct 36 ms 2504 KB Output is correct
13 Incorrect 34 ms 2492 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 43 ms 2428 KB Output is correct
3 Correct 41 ms 2464 KB Output is correct
4 Correct 450 ms 17036 KB Output is correct
5 Incorrect 32 ms 2504 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 6 ms 592 KB Output is correct
3 Correct 4 ms 588 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 4 ms 608 KB Output is correct
17 Correct 41 ms 2504 KB Output is correct
18 Correct 28 ms 47180 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 26 ms 47268 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 280 ms 16740 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 403 ms 16792 KB Output is correct
31 Correct 398 ms 16816 KB Output is correct
32 Correct 418 ms 16792 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 388 ms 16776 KB Output is correct
35 Correct 389 ms 16848 KB Output is correct
36 Correct 362 ms 16816 KB Output is correct
37 Correct 406 ms 16864 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 36 ms 2380 KB Output is correct
40 Correct 40 ms 2504 KB Output is correct
41 Correct 41 ms 2412 KB Output is correct
42 Correct 42 ms 2408 KB Output is correct
43 Correct 44 ms 2504 KB Output is correct
44 Correct 47 ms 2404 KB Output is correct
45 Correct 36 ms 2504 KB Output is correct
46 Incorrect 34 ms 2492 KB Output isn't correct
47 Halted 0 ms 0 KB -