Submission #781454

#	Time	Username	Problem	Language	Result	Execution time	Memory
781454		devariaota	Strange Device (APIO19_strange_device)	C++17	10 / 100	5060 ms	524288 KiB

strange_device

#include <bits/stdc++.h>
using namespace std;
 
#define v          vector
#define int        long long
#define all(a)     (a).begin(), (a).end()
#define pb         push_back
#define mk         make_pair
#define pii        pair<int, int>
#define ff         first
#define ss         second
#define inp_v(vec) for (auto &i : vec) cin >> i;
#define prt_v(vec) for (auto i : vec) cout << i << endl;
#define MS(x)     memset(x, 0, sizeof(x))
#define gcd(a,b)   __gcd(a, b);
#define lcm(a,b)   (a*(b/gcd(a,b)))
#define lb         lower_bound
#define ub         upper_bound
bool chmin(int &a, int b){return b<a?a=b, true:false;}
bool chmax(int &a, int b){return b>a?a=b, true:false;}
 
signed main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    int N, a, b;cin>>N>>a>>b;
    set<pair<int, int>>st;
    for(int i=0;i<N;i++){
        int x,  y;cin>>x>>y;
        for(int j=x;j<=y;j++){
            int q1=(j+(j/b))%a;
            int q2=j%b;
            st.insert({q1, q2});
        }
    }
    cout<<st.size()<<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