Submission #252657

#	Time	Username	Problem	Language	Result	Execution time	Memory
252657		Badrangiikh	Strange Device (APIO19_strange_device)	C++14	100 / 100	2186 ms	34136 KiB

strange_device

#include<bits/stdc++.h>
#include <deque> 
#include <cmath>
using namespace std;
 
#define ll long long 
 
/*freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);*/
 
long long x , y , z , i , j , n , m , k , s1 , s2 , s3 , s4 , s5 , s6 , mod , l , r , t , maxx , minn , sx , so , sum , mid , ans , puk , par , chi , sz , choc1 , choc2 , len , depth ;
pair < long long , long long > aa [ 2000045 ] ;

int main() {
    cin >> n >> x >> y ;
    z = x / ( __gcd ( x , y + 1 ) ) ;
    if ( z > 1000000000000000000 / y ) {
        k = 1000000000000000001 ;
    }
    else {
        k = z * y ;
    }
    x = 0 ;
    for ( i = 1 ; i <= n ; i ++ ) {
        cin >> l >> r ;
        if ( r - l + 1 >= k ) {
            cout << k ;
            exit (0) ;
        }
        l %= k ;
        r %= k ;
        if ( l <= r ) {
            x ++ ;
            aa [ x ] . first = l ;
            aa [ x ] . second = r ;
        }
        else {
            x ++ ;
            aa [ x ] . first = l ;
            aa [ x ] . second = k - 1 ;
            x ++ ;
            aa [ x ] . first = 0 ;
            aa [ x ] . second = r ;
        }
    }
    sort ( aa + 1 , aa + x + 1 ) ;
    r = -1 ;
    ans = 0 ;
    for ( i = 1 ; i <= x ; i ++ ) {
        r = max ( r , aa [ i ] . first - 1 ) ;
        ans += max ( aa [ i ] . second - r , so ) ;
        r = max ( aa [ i ] . second , r ) ;
    }
    cout << ans ;
}    

• 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