Submission #142673

#	Time	Username	Problem	Language	Result	Execution time	Memory
142673		Bodo171	Strange Device (APIO19_strange_device)	C++14	10 / 100	5065 ms	524292 KiB

strange_device

#include <iostream>
#include <set>
using namespace std;
set <long long > s;
long long n,i,j,l,r,A,B,per;
long long lim=1LL*1e18+1;
long long gcd(long long x,long long y)
{
    if((!x)||(!y)) return (x+y);
    return gcd(y,x%y);
}
int main()
{
    cin>>n>>A>>B;
    long long t=gcd(A,B+1);
    A/=t;
    long long per;
    if(lim/A<=B) per=lim;
    else per=1LL*A*B;
    for(i=1;i<=n;i++)
    {
        cin>>l>>r;
        for(j=l;j<=r;j++)
          s.insert(j%per);
    }
    cout<<s.size();
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30