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Submission #663107

# Submission time Handle Problem Language Result Execution time Memory
663107 2022-11-26T15:50:03 Z Ai7081 Strange Device (APIO19_strange_device) C++17
65 / 100
 485 ms 17024 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll, ll>

ll n, a, b, l, r, loop;
vector<pii> v;

ll gcd(ll c1, ll c2) {
    if (!(max(c1,c2)%min(c1,c2))) return min(c1, c2);
    return gcd(min(c1,c2), max(c1,c2)%min(c1,c2));
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n >> a >> b;
    a/=gcd(a,b+1);
    double dloop=(double)a*double(b);
    loop = (dloop>1e18 ? (ll)1e18+1 : a*b);
    while (n--) {
        cin >> l >> r, l%=loop, r%=loop;
        if (l>r) v.push_back({0,r}), v.push_back({l,loop-1});
        else v.push_back({l,r});
    }
    sort(v.begin(), v.end());
    ll out=0, ma=-1;
    for (auto [x,y]:v) out += (ma<x ? y-x+1 : max((ll)0,y-ma)), ma=max(ma,y);
    cout << out;
    return 0;
}

/*
3 3 3
4 4
7 9
17 18
ans: 4

3 5 10
1 20
50 68
89 98
ans: 31

1 1000000000000000 1000000000000000000
100000 1000000
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 6 ms 600 KB Output is correct
3 Correct 5 ms 600 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 47 ms 2452 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 313 ms 16800 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 485 ms 16848 KB Output is correct
3 Correct 463 ms 16848 KB Output is correct
4 Correct 375 ms 16856 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 485 ms 16848 KB Output is correct
3 Correct 463 ms 16848 KB Output is correct
4 Correct 375 ms 16856 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 405 ms 16856 KB Output is correct
7 Correct 382 ms 16768 KB Output is correct
8 Correct 393 ms 16808 KB Output is correct
9 Correct 414 ms 16852 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 485 ms 16848 KB Output is correct
3 Correct 463 ms 16848 KB Output is correct
4 Correct 375 ms 16856 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 40 ms 2516 KB Output is correct
7 Correct 40 ms 2456 KB Output is correct
8 Correct 41 ms 2504 KB Output is correct
9 Correct 37 ms 2452 KB Output is correct
10 Correct 48 ms 2504 KB Output is correct
11 Correct 40 ms 2420 KB Output is correct
12 Correct 37 ms 2516 KB Output is correct
13 Correct 39 ms 2468 KB Output is correct
14 Correct 43 ms 2508 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 39 ms 2400 KB Output is correct
17 Correct 38 ms 2504 KB Output is correct
18 Correct 406 ms 16780 KB Output is correct
19 Correct 380 ms 16828 KB Output is correct
20 Correct 428 ms 17024 KB Output is correct
21 Correct 46 ms 2512 KB Output is correct
22 Correct 35 ms 2456 KB Output is correct
23 Correct 115 ms 8592 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 40 ms 2480 KB Output is correct
3 Correct 42 ms 2376 KB Output is correct
4 Correct 466 ms 16860 KB Output is correct
5 Correct 39 ms 2512 KB Output is correct
6 Correct 41 ms 2496 KB Output is correct
7 Correct 42 ms 2412 KB Output is correct
8 Correct 41 ms 2400 KB Output is correct
9 Correct 40 ms 2512 KB Output is correct
10 Correct 42 ms 2440 KB Output is correct
11 Correct 40 ms 2396 KB Output is correct
12 Correct 36 ms 2380 KB Output is correct
13 Correct 39 ms 2512 KB Output is correct
14 Correct 414 ms 16780 KB Output is correct
15 Correct 39 ms 2424 KB Output is correct
16 Correct 374 ms 16796 KB Output is correct
17 Correct 400 ms 16844 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 6 ms 600 KB Output is correct
3 Correct 5 ms 600 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 47 ms 2452 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Incorrect 1 ms 212 KB Output isn't correct
21 Halted 0 ms 0 KB -