| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 781600 | 2023-07-13T08:32:02 Z | makanhulia | Strange Device (APIO19_strange_device) | C++17 | 0 ms | 0 KB |
#include <bits/stdc++.h>
#define ll long long
using namespace std;
bool vis[100000][100000];
pair<long long,long long> arr[1000000];
int main(){
ll n,a,b;cin>>n>>a>>b;
for(int i=1;i<=n;i++){
cin>>arr[i].first>>arr[i].second;
}
ll ans=0;
for(int j=1;j<=n;j++){
ll x,y;
x=arr[j].first;
y=arr[j].second;
for(ll i=x;i<=y;i++){
ll c=(i+i/b)%a;
ll d=i%b;
if(!vis[c][d]){
ans++;
vis[c][d]=true;
}
}
}
cout<<ans;
}