| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 781651 | 2023-07-13T09:12:26 Z | kebine | Strange Device (APIO19_strange_device) | C++17 | 0 ms | 0 KB |
#include <bits/stdc++.h>
#define ll long long
using namespace std;
bool vis[1000000][1000000];
int main(){
ll n,a,b;cin>>n>>a>>b;
ll ans=0;
for(int j=1;j<=n;j++){
ll x,y;cin>>x>>y;
for(ll i=x;i<=y;i++){
ll c=(i+i/b)%a;
ll d=i%b;
if(!vis[d][c]){
ans++;
vis[d][c]=true;
}
}
}
cout<<ans;
}