oj.uz

Submission #663143

# Submission time Handle Problem Language Result Execution time Memory
663143 2022-11-26T16:09:43 Z Ai7081 Strange Device (APIO19_strange_device) C++17
65 / 100
 428 ms 16936 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll, ll>

const ll inf = 5e18;

ll n, a, b, l, r, p;
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);
    p = (inf/b<a ? inf : a*b);
    while (n--) {
        cin >> l >> r, l%=p, r%=p;
        if (l>r) v.push_back({0,r}), v.push_back({l,p-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 0 ms 212 KB Output is correct
2 Correct 4 ms 704 KB Output is correct
3 Correct 4 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 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 41 ms 2480 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 291 ms 16844 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 383 ms 16868 KB Output is correct
3 Correct 367 ms 16820 KB Output is correct
4 Correct 370 ms 16776 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 383 ms 16868 KB Output is correct
3 Correct 367 ms 16820 KB Output is correct
4 Correct 370 ms 16776 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 375 ms 16864 KB Output is correct
7 Correct 380 ms 16812 KB Output is correct
8 Correct 363 ms 16936 KB Output is correct
9 Correct 397 ms 16836 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 383 ms 16868 KB Output is correct
3 Correct 367 ms 16820 KB Output is correct
4 Correct 370 ms 16776 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 37 ms 2452 KB Output is correct
7 Correct 38 ms 2408 KB Output is correct
8 Correct 36 ms 2476 KB Output is correct
9 Correct 41 ms 2412 KB Output is correct
10 Correct 36 ms 2480 KB Output is correct
11 Correct 38 ms 2488 KB Output is correct
12 Correct 36 ms 2512 KB Output is correct
13 Correct 42 ms 2416 KB Output is correct
14 Correct 36 ms 2516 KB Output is correct
15 Correct 40 ms 2432 KB Output is correct
16 Correct 38 ms 2436 KB Output is correct
17 Correct 36 ms 2492 KB Output is correct
18 Correct 366 ms 16880 KB Output is correct
19 Correct 365 ms 16896 KB Output is correct
20 Correct 406 ms 16780 KB Output is correct
21 Correct 38 ms 2528 KB Output is correct
22 Correct 35 ms 2504 KB Output is correct
23 Correct 113 ms 8636 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 40 ms 2572 KB Output is correct
3 Correct 38 ms 2484 KB Output is correct
4 Correct 428 ms 16868 KB Output is correct
5 Correct 38 ms 2512 KB Output is correct
6 Correct 38 ms 2512 KB Output is correct
7 Correct 40 ms 2400 KB Output is correct
8 Correct 39 ms 2428 KB Output is correct
9 Correct 38 ms 2476 KB Output is correct
10 Correct 42 ms 2440 KB Output is correct
11 Correct 39 ms 2496 KB Output is correct
12 Correct 36 ms 2604 KB Output is correct
13 Correct 41 ms 2524 KB Output is correct
14 Correct 404 ms 16844 KB Output is correct
15 Correct 38 ms 2512 KB Output is correct
16 Correct 375 ms 16832 KB Output is correct
17 Correct 372 ms 16800 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 704 KB Output is correct
3 Correct 4 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 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 41 ms 2480 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 -