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Submission #527017

# Submission time Handle Problem Language Result Execution time Memory
527017 2022-02-16T19:51:04 Z Lobo Strange Device (APIO19_strange_device) C++17
30 / 100
 438 ms 17020 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);
 
    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 208 KB Output is correct
2 Correct 5 ms 728 KB Output is correct
3 Correct 4 ms 804 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 316 KB Output is correct
13 Correct 1 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 5 ms 720 KB Output is correct
17 Correct 49 ms 2700 KB Output is correct
18 Correct 1 ms 320 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 312 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 1 ms 204 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 364 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 290 ms 16856 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 380 ms 16928 KB Output is correct
3 Correct 389 ms 16908 KB Output is correct
4 Correct 368 ms 16924 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 380 ms 16928 KB Output is correct
3 Correct 389 ms 16908 KB Output is correct
4 Correct 368 ms 16924 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 383 ms 16892 KB Output is correct
7 Correct 385 ms 16852 KB Output is correct
8 Correct 378 ms 17020 KB Output is correct
9 Correct 398 ms 16920 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 380 ms 16928 KB Output is correct
3 Correct 389 ms 16908 KB Output is correct
4 Correct 368 ms 16924 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 37 ms 2684 KB Output is correct
7 Correct 40 ms 2712 KB Output is correct
8 Correct 38 ms 2704 KB Output is correct
9 Correct 39 ms 2752 KB Output is correct
10 Correct 38 ms 2764 KB Output is correct
11 Correct 41 ms 2760 KB Output is correct
12 Correct 37 ms 2808 KB Output is correct
13 Incorrect 37 ms 2744 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 43 ms 2784 KB Output is correct
3 Correct 42 ms 2772 KB Output is correct
4 Correct 438 ms 16916 KB Output is correct
5 Incorrect 32 ms 2624 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 208 KB Output is correct
2 Correct 5 ms 728 KB Output is correct
3 Correct 4 ms 804 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 0 ms 316 KB Output is correct
13 Correct 1 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 5 ms 720 KB Output is correct
17 Correct 49 ms 2700 KB Output is correct
18 Correct 1 ms 320 KB Output is correct
19 Correct 0 ms 312 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 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 290 ms 16856 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 380 ms 16928 KB Output is correct
31 Correct 389 ms 16908 KB Output is correct
32 Correct 368 ms 16924 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 383 ms 16892 KB Output is correct
35 Correct 385 ms 16852 KB Output is correct
36 Correct 378 ms 17020 KB Output is correct
37 Correct 398 ms 16920 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 37 ms 2684 KB Output is correct
40 Correct 40 ms 2712 KB Output is correct
41 Correct 38 ms 2704 KB Output is correct
42 Correct 39 ms 2752 KB Output is correct
43 Correct 38 ms 2764 KB Output is correct
44 Correct 41 ms 2760 KB Output is correct
45 Correct 37 ms 2808 KB Output is correct
46 Incorrect 37 ms 2744 KB Output isn't correct
47 Halted 0 ms 0 KB -