Submission #249949

#	Time	Username	Problem	Language	Result	Execution time	Memory
249949		jeqcho	Strange Device (APIO19_strange_device)	C++17	10 / 100	5094 ms	524292 KiB

strange_device

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pair<int,int>> vpi;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define rsz resize
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define f first
#define s second

ll A,B;
set<pii> ans;

ll x(ll t)
{
    return (t + t/B) % A;
}

ll y(ll t)
{
    return t % B;
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n;
    cin>>n>>A>>B;
    ll l,r;
    while(n--)
    {
        cin>>l>>r;
        for(ll t=l;t < r+1; ++t)
        {
            ans.insert({x(t),y(t)});
        }
    }
    cout<<sz(ans)<<endl;
    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