Submission #1255303

#	Time	Username	Problem	Language	Result	Execution time	Memory
1255303		M_SH_O	Strange Device (APIO19_strange_device)	C++20	0 / 100	3511 ms	589824 KiB

strange_device

#include <bits/stdc++.h>
//#include "rainbow.h"

#define ll int
#define ll1 long long
#define ull unsigned long long
#define dou long double
#define str string
#define vll vector<ll>
#define vi vector<int>
#define pll pair<ll, ll>
#define vpll vector<pll>
#define vbool vector<bool>
#define vstr vector<str>
#define vvll vector<vll>
#define pb push_back
#define pf push_front
#define endl "\n"
#define fr first
#define se second
// #define sortcmp(a) sort(a.begin(), a.end(), cmp)
#define sort(a) sort(a.begin(), a.end())
#define reverse(a) reverse(a.begin(), a.end())
#define speed ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ordered_set tree<ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update>

using namespace std;
//using namespace __gnu_pbds;

const ll INF = 1e18;
const int lg = 20;

mt19937 rng(time(0));
ll randll(ll l, ll r){
    return uniform_int_distribution<ll>(l, r)(rng);
}

int main(){
    speed;
    ll n, a, b;
    cin >> n >> a >> b;
    set<pll> s;
    
    for(int i = 0; i < n; i ++){
        ll l, r;
        cin >> l >> r;
        for(int j = l; j <= r; j ++){
            s.insert({(j + j / b) % a, j % b});
        }
    }
    
    cout << s.size() << endl;
}

Compilation message (stderr)

strange_device.cpp:30:16: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   30 | const ll INF = 1e18;
      |                ^~~~

• 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