Submission #781432

#	Time	Username	Problem	Language	Result	Execution time	Memory
781432		christinelynn	Strange Device (APIO19_strange_device)	C++17	0 / 100	5118 ms	405568 KiB

strange_device

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n,a,b;
ll l[1000005],r[1000005];
int main(){
    cin>>n>>a>>b;
    ll s=0;
    for (int i=1;i<=n;i++){
        cin>>l[i]>>r[i];
        s+=(r[i]-l[i])+1;
    }
    if (s<1000005){
        set<pair<ll,ll>> st;
        for (int i=1;i<=n;i++){
            for (int j=l[i];j<=r[i];j++){
                st.insert({(ll)(j+(ceil((long double)j/b)))%a,j%b});
            }
        }
        cout<<st.size();
    }
}

• 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