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Submission #527027

# Submission time Handle Problem Language Result Execution time Memory
527027 2022-02-16T19:58:24 Z Lobo Strange Device (APIO19_strange_device) C++17
30 / 100
 459 ms 47208 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 {
        assert((a*b*q)%(b+1) == 0);
        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 204 KB Output is correct
2 Correct 5 ms 848 KB Output is correct
3 Correct 7 ms 848 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 304 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 316 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 4 ms 968 KB Output is correct
17 Correct 42 ms 2604 KB Output is correct
18 Correct 27 ms 47208 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 204 KB Output is correct
5 Correct 28 ms 47164 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 270 ms 16924 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 397 ms 17060 KB Output is correct
3 Correct 373 ms 17032 KB Output is correct
4 Correct 367 ms 17120 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 397 ms 17060 KB Output is correct
3 Correct 373 ms 17032 KB Output is correct
4 Correct 367 ms 17120 KB Output is correct
5 Correct 0 ms 312 KB Output is correct
6 Correct 388 ms 16964 KB Output is correct
7 Correct 373 ms 17136 KB Output is correct
8 Correct 444 ms 17004 KB Output is correct
9 Correct 433 ms 17016 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 397 ms 17060 KB Output is correct
3 Correct 373 ms 17032 KB Output is correct
4 Correct 367 ms 17120 KB Output is correct
5 Correct 0 ms 304 KB Output is correct
6 Correct 38 ms 2604 KB Output is correct
7 Correct 42 ms 2752 KB Output is correct
8 Correct 37 ms 2748 KB Output is correct
9 Correct 47 ms 2720 KB Output is correct
10 Correct 41 ms 2716 KB Output is correct
11 Correct 44 ms 2820 KB Output is correct
12 Correct 44 ms 2748 KB Output is correct
13 Runtime error 1 ms 460 KB Execution killed with signal 6
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 46 ms 2876 KB Output is correct
3 Correct 41 ms 2876 KB Output is correct
4 Correct 459 ms 16948 KB Output is correct
5 Runtime error 1 ms 460 KB Execution killed with signal 6
6 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 5 ms 848 KB Output is correct
3 Correct 7 ms 848 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 304 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 316 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 320 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 4 ms 968 KB Output is correct
17 Correct 42 ms 2604 KB Output is correct
18 Correct 27 ms 47208 KB Output is correct
19 Correct 1 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 1 ms 204 KB Output is correct
23 Correct 28 ms 47164 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 270 ms 16924 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 397 ms 17060 KB Output is correct
31 Correct 373 ms 17032 KB Output is correct
32 Correct 367 ms 17120 KB Output is correct
33 Correct 0 ms 312 KB Output is correct
34 Correct 388 ms 16964 KB Output is correct
35 Correct 373 ms 17136 KB Output is correct
36 Correct 444 ms 17004 KB Output is correct
37 Correct 433 ms 17016 KB Output is correct
38 Correct 0 ms 304 KB Output is correct
39 Correct 38 ms 2604 KB Output is correct
40 Correct 42 ms 2752 KB Output is correct
41 Correct 37 ms 2748 KB Output is correct
42 Correct 47 ms 2720 KB Output is correct
43 Correct 41 ms 2716 KB Output is correct
44 Correct 44 ms 2820 KB Output is correct
45 Correct 44 ms 2748 KB Output is correct
46 Runtime error 1 ms 460 KB Execution killed with signal 6
47 Halted 0 ms 0 KB -