Submission #252653

#	Time	Username	Problem	Language	Result	Execution time	Memory
252653		Badrangiikh	Strange Device (APIO19_strange_device)	C++14	0 / 100	0 ms	384 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 ;
double u , v , w , x1 , x2 , x3 , x4 , z1 , z2 , z3 , h , huh ;
string s ;
string q ;
string p ;
string sq [ 1045 ] ;
char ch ;
char cha ;
vector < long long > vc ;
vector < long long > cv ;
vector < long long > vv ;
vector < long long > cc ;
long long dp [ 200045 ] [ 6 ] ;
long long tmp [ 300045 ] ;
pair < long long , long long > aa [ 2000045 ] ;
long long a [ 300045 ] ;
long long b [ 200045 ] ;
long long c [ 200045 ] ;
map < long long , long long > mp ;

int main() {
    scanf ( "%lld%lld%lld" , & n , & x , & y ) ;
    z = __gcd ( x , y + 1 ) ;
    z = x / z ;
    if ( z > 1000000000000000000 / y ) {
        k = 1000000000000000001 ;
    }
    else {
        k = k * y ;
    }
    x = 0 ;
    for ( i = 1 ; i <= n ; i ++ ) {
        scanf ( "%lld%lld" , & l , & r ) ;
        if ( r - l + 1 >= k ) {
            printf ( "%lld" , 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 ) ;
    }
    printf ( "%lld" , ans ) ;
}    

Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:32:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf ( "%lld%lld%lld" , & n , & x , & y ) ;
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:43:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ( "%lld%lld" , & l , & r ) ;
         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• 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