Submission #562760

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
562760	2022-05-15 08:32:16	tatyam	Strange Device (APIO19_strange_device)	C++17	100 / 100	820 ms	113428 KiB

strange_device

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#include <iostream>
#include <vector>
#include <numeric>
#include <map>
using namespace std;
using u64 = uint64_t;
const u64 MAX = 1e18;
int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n;
    u64 A, B;
    cin >> n >> A >> B;
    A /= gcd(A, B + 1);
    const u64 P = MAX / A < B ? MAX + 1 : A * B;
    vector<pair<u64, u64>> range(n);
    map<u64, int> imos;
    for(auto& [L, R] : range){
        cin >> L >> R;
        R++;
        if(R - L >= P){
            cout << P << endl;
            return 0;
        }
        L %= P;
        R %= P;
        imos[L]++;
        imos[R]--;
 
 
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• Subtask 8: 30 / 30