Submission #139532

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
139532	2019-08-01 00:37:10	jovan_b	Strange Device (APIO19_strange_device)	C++17	100 / 100	980 ms	34808 KiB

strange_device

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
vector <pair <ll, ll>> vec;
int main(){
    ios_base::sync_with_stdio(false);
    cout.precision(10);
    cout<<fixed;
    int n;
    cin >> n;
    ll a, b;
    cin >> a >> b;
    a /= __gcd(a, b+1);
    if(a <= 2000000000000000000LL/b) a *= b;
    //cout << a << endl;
    while(n--){
        ll l, r;
        cin >> l >> r;
        if(r-l+1 >= a){
            cout << a << "\n";
            return 0;
        }
        l %= a;
        r %= a;
        if(l > r){
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 30 / 30