oj.uz

Submission #729648

# Submission time Handle Problem Language Result Execution time Memory
729648 2023-04-24T10:25:29 Z danikoynov Strange Device (APIO19_strange_device) C++14
10 / 100
 5000 ms 524288 KB 
#include<bits/stdc++.h>
#define endl '\n'

using namespace std;
typedef long long ll;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

const int maxn = 1e6 + 10;

int n;
ll l[maxn], r[maxn];
ll A, B;


void solve()
{
    cin >> n >> A >> B;

    for (int i = 1; i <= n; i ++)
    {
        cin >> l[i] >> r[i];
    }
    ll g = __gcd(A, B + 1);
    /// period is A * B / g
    if ((double)(1e18) / (double)(A) < (double)(B) / (double)(g))
    {
        ll ans = 0;
        for (int i = 1; i <= n; i ++)
        {
            ans = ans + (r[i] - l[i] + 1);
        }
        cout << ans << endl;
        return;
    }

    double period = A * B / g;
    unordered_set < ll > st;
    for (int i = 1; i <= n; i ++)
    {

        for (ll j = l[i]; j <= r[i]; j ++)
        {
                 ll x = (j + (j / B)) % A, y = j % B;

                 ///cout << x << " " << y << endl;
            st.insert(x * B + y);
        }
    }

    cout << st.size() << endl;
}


int main()
{
    solve();
    return 0;
}
/**
1  10000 3312452154131231
1 1
*/

Compilation message

strange_device.cpp: In function 'void solve()':
strange_device.cpp:42:12: warning: unused variable 'period' [-Wunused-variable]
   42 |     double period = A * B / g;
      |            ^~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 37 ms 10200 KB Output is correct
3 Correct 48 ms 12400 KB Output is correct
4 Correct 2 ms 556 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 4 ms 852 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 304 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 16 ms 4964 KB Output is correct
16 Correct 22 ms 5472 KB Output is correct
17 Correct 150 ms 7580 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 696 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 304 KB Output is correct
2 Correct 60 ms 21916 KB Output is correct
3 Correct 80 ms 21796 KB Output is correct
4 Correct 66 ms 20996 KB Output is correct
5 Execution timed out 5035 ms 58644 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1342 ms 58948 KB Output is correct
3 Runtime error 2155 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1342 ms 58948 KB Output is correct
3 Runtime error 2155 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1342 ms 58948 KB Output is correct
3 Runtime error 2155 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 2728 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 37 ms 10200 KB Output is correct
3 Correct 48 ms 12400 KB Output is correct
4 Correct 2 ms 556 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 4 ms 852 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 304 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 16 ms 4964 KB Output is correct
16 Correct 22 ms 5472 KB Output is correct
17 Correct 150 ms 7580 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Runtime error 696 ms 524288 KB Execution killed with signal 9
21 Halted 0 ms 0 KB -