Submission #48123

#	Time	Username	Problem	Language	Result	Execution time	Memory
48123		TheDarkning	Palembang Bridges (APIO15_bridge)	C++17	31 / 100	2070 ms	4200 KiB

bridge

/**
                  ▄█▀ ▀█▀ ▄▀▄ █▀ █▄█▄█ ▄▀▄ █▀ ▄█▀
                  <⇋⇋⇋⋛∰≓⊂(⌒,_ゝ⌒)⊃≓∰⋛⇋⇋⇋>

            ♔♕♖♗♘♙ ☜❷☞✪ ィℋ६ ≈ ᗫẵℜℵĬŊĞ ✪☜❷☞ ♚♛♜♝♞♟
            ♔♕♖♗♘♙                             ♚♛♜♝♞♟
                      ˙·٠•●♥ Ƹ̵̡Ӝ̵̨̄Ʒ ♥●•٠·˙
2 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7

**/

#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <time.h>
#include <map>
#include <deque>
#include <assert.h>
#include <queue>
#include <string>
#include <memory.h>
#include <set>
#include <math.h>

#define sz(s) s.size()
#define pb emplace_back
#define fr first
#define sc second
#define mk make_pair
#define int long long
#define all(s) s.begin(), s.end()
#define ok puts("ok");

using namespace std;

const int N = 2e5 + 5;
const int inf = 1e18 + 7;

int n, k, ans, cnt, a[N], b[N];
char t1[N], t2[N];
vector < int > v;

main(){
    cin >> k >> n;
    if( k == 1 ){
        for( int i = 1; i <= n; i++ ){
            cin >> t1[i] >> a[i] >> t2[i] >> b[i];
            if( t1[ i ] != t2[ i ] ){
                ans ++;
                v.pb( a[i] );
                v.pb( b[i] );
            }
            else{
                ans += abs( a[i] - b[i] );
            }
        }

        sort( all( v ) );
        for( int i = 0; i < sz( v ) / 2; i++ ){
            ans -= v[i];
        }

        for( int i = sz( v ) / 2; i < sz( v ); i++ ){
            ans += v[i];
        }

        cout << ans;
    }
    else{
        for( int i = 1; i <= n; i++ ){
            cin >> t1[ i ] >> a[ i ] >> t2[ i ] >> b[ i ];
            v.pb( a[i] );
            v.pb( b[i] );
        }
        ans = inf;
        for( int i = 0; i < sz( v ); i ++ ){
            for( int j = 0; j <= sz( v ); j ++ ){
                int sum = 0;
                for( int k = 1; k <= n; k ++ ){
                    if( t1[ k ] == t2[ k ] ){
                        sum += abs( a[k] - b[k] );
                        continue;
                    }
                    int cur = abs( v[ i ] - a[ k ] ) + abs( v[ i ] - b[ k ] );
                    int res = abs( v[ j ] - a[ k ] ) + abs( v[ j ] - b[ k ] );
                    sum += min( res, cur ) + 1;
                }
                ans = min( ans, sum );
            }
        }
        cout << ans << endl;
    }
}

Compilation message (stderr)

bridge.cpp:50:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
bridge.cpp: In function 'int main()':
bridge.cpp:66:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for( int i = 0; i < sz( v ) / 2; i++ ){
                         ~~^~~~~~~~~~~~~
bridge.cpp:70:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for( int i = sz( v ) / 2; i < sz( v ); i++ ){
                                     ^
bridge.cpp:83:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for( int i = 0; i < sz( v ); i ++ ){
                           ^
bridge.cpp:84:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for( int j = 0; j <= sz( v ); j ++ ){
                               ^

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 9 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37