Submission #1034561

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1034561	2024-07-25 14:52:15	andrei_iorgulescu	Strange Device (APIO19_strange_device)	C++14	100 / 100	932 ms	69868 KiB

strange_device

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#include <bits/stdc++.h>
using namespace std;
#define int long long
int n,A,B;
int l[1000005],r[1000005];
signed main()
{
    cin >> n >> A >> B;
    for (int i = 1; i <= n; i++)
        cin >> l[i] >> r[i];
    __int128 AA = A, BB = B;
    __int128 FF = AA * BB / __gcd(AA,BB + 1);
    if (FF > r[n])
    {
        int sumlen = 0;
        for (int i = 1; i <= n; i++)
            sumlen += r[i] - l[i] + 1;
        cout << sumlen;
    }
    else
    {
        int F = FF;
        for (int i = 1; i <= n; i++)
        {
            if (r[i] - l[i] + 1 >= F)
            {
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 30 / 30