Submission #298950

#	Time	Username	Problem	Language	Result	Execution time	Memory
298950		infinite_iq	Wiring (IOI17_wiring)	C++14	0 / 100	1087 ms	2936 KiB

wiring

#include <bits/stdc++.h>
using namespace std ;
typedef long long ll ;
typedef vector < int > vi ;
#define lb lower_bound
#include "wiring.h"
long long min_total_length ( vi a , vi b ) {
        if ( a .size () > b .size () ) swap ( a , b ) ;
        int k = b .size () - a .size () ;
        ll ans = 1e18 ;
        ll N   = ( !k ? b .size () : b .size () - k + 1 ) ;
        for ( int i = 0 ; i < N ; i ++ ) {
                ll cost = 0 ;
                for ( int j = i ; j < i + k ; j ++ ) {
                        ll ret = 1e8 ; 
                        auto it = lb ( a .begin () , a .end () , b [j] ) - a .begin () ;
                        if ( it != a .size () ) {
                                ret = min ( ret , (ll) ( abs ( a [it] - b [j] ) ) ) ;
                        }
                        it -- ;
                        if ( it != -1 ) {
                                ret = min ( ret , (ll) ( abs ( a [it] - b [j] ) ) ) ;
                        }
                        cost += ret ;
                }
                int it = 0 ;
                for ( int j = 0 ; j < b .size () ; j ++ ) {
                        if ( i <= j && j < i + k ) continue ;
                        cost += abs ( b [j] - a [it++] ) ;
                }
                ans = min ( ans , cost ) ;
        }
        return ans ;
}

Compilation message (stderr)

wiring.cpp: In function 'long long int min_total_length(vi, vi)':
wiring.cpp:17:33: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |                         if ( it != a .size () ) {
      |                              ~~~^~~~~~~~~~~~~
wiring.cpp:27:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |                 for ( int j = 0 ; j < b .size () ; j ++ ) {
      |                                   ~~^~~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 13
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45