Submission #529760

#	Time	Username	Problem	Language	Result	Execution time	Memory
529760		ammar2000	Strange Device (APIO19_strange_device)	C++17	0 / 100	5082 ms	524292 KiB

strange_device

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define F first
#define S second
#define coy cout<<"YES\n"
#define con cout<<"NO\n"
#define co1 cout<<"-1\n"
#define sc(x) scanf("%lld",&x)
#define all(x) x.begin(),x.end()
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int SI=3e5+7;
ll INF=8e18+7;
int dx[] = {1 , -1 , 0 , 0};
int dy[] = {0 , 0 , 1 , -1};
int MOD=1e9+7;
ll n,a,b;
ll ans=0;
map <pair < ll,ll>,ll> mp;
int main()
{
   fast
   cin>>n>>a>>b;
   for (int i=0;i<n;i++)
   {
       ll l,r;
       cin>>l>>r;
       for (int u=l;u<=r;u++)
       {
           ll x=(u+u/b)%a,y=u%b;
           if (mp[{x,y}]==0) ans++;
           mp[{x,y}]++;
       }
   }
   cout <<ans <<"\n";
   // use scanf not cin
   return 0;
}

• Subtask 1: 0 / 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