Submission #1122735

#	Time	Username	Problem	Language	Result	Execution time	Memory
1122735		chaoslong	Palembang Bridges (APIO15_bridge)	C++17	0 / 100	1 ms	328 KiB

bridge

// Calm down.
// Think three times, code twice.
#include "bits/stdc++.h"
#define forr(_a,_b,_c) for(int _a = (_b); _a <= (_c); ++_a)
#define ford(_a,_b,_c) for(int _a = (_b) + 1; _a --> (_c);)
#define forf(_a,_b,_c) for(int _a = (_b); _a < (_c); ++_a)
#define st first
#define nd second
#define ll long long
#define ull unsigned long long
#define pii pair <int,int>
#define pll pair <ll,ll>
#define piii pair <int,pii>
#define vi vector <int>
#define pb push_back
#define mp make_pair
#define all(x) begin(x),end(x)
#define mask(i) (1LL << (i))
#define bit(x, i) (((x) >> (i)) & 1)
#define bp __builtin_popcountll
#define file "test"

using namespace std;
const int N = 1e6 + 5;
const int mod = 1e9 + 7; // 998244353
const ll oo = 1e18;

ll n, k;

void to_nho_cau() {
    cin >> k >> n;
    vector<ll> f;
    ll ans = 0, cur = 0;
    forr(i, 1, n) {
        char x, y; ll a, b; cin >> x >> a >> y >> b;
        if(x != y) {
            ans++;
            f.pb(a); f.pb(b);
        } else {
            ans += abs(a - b);
        }
    }
    cur = ans;
//    cout << cur << "\n";
    if(f.size()) {
        sort(all(f));
        ll mid = f[(f.size() - 1) / 2];
        forf(i, 0, f.size()) {
            ans = ans + abs(mid - f[i]);
//            cout << mid << " " << f[i] << "\n";
        }
    }
    ans = min(ans, cur);
    cout << ans << "\n";
}

signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    #ifdef LOCAL
        freopen(file".inp","r",stdin);
        freopen(file".out","w",stdout);
    #endif
    int t = 1;
    //cin >> t;
    while(t--) to_nho_cau();
}
/*
1.self check:
2.long long
3.size of array
4.code for testing
5.initializing
6.modulo number
*/
/**
  ∧__∧
（｀•ω• )づ__∧
（つ　 /( •ω•。)
  しーＪ (nnノ) pat pat
**/
/**  /\_/\
*   (= ._.)
*   / >☕ \>💻
**/

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