oj.uz

Submission #1072211

# Submission time Handle Problem Language Result Execution time Memory
1072211 2024-08-23T15:38:59 Z TrinhKhanhDung Palembang Bridges (APIO15_bridge) C++14
0 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define sz(x) (int)x.size()
#define ALL(v) v.begin(),v.end()
#define MASK(k) (1LL << (k))
#define BIT(x, i) (((x) >> (i)) & 1)
#define oo (ll)1e18
#define INF (ll)1e9
#define MOD (ll)(1e9 + 21071997)

using namespace std;

template<class T1, class T2>
    bool maximize(T1 &a, T2 b){if(a < b){a = b; return true;} return false;}

template<class T1, class T2>
    bool minimize(T1 &a, T2 b){if(a > b){a = b; return true;} return false;}

template<class T1, class T2>
   void add(T1 &a, T2 b){a += b; if(a >= MOD) a -= MOD;}

template<class T1, class T2>
   void sub(T1 &a, T2 b){a -= b; if(a < 0) a += MOD;}

template<class T>
    void cps(T &v){sort(ALL(v)); v.resize(unique(ALL(v)) - v.begin());}

const int MAX = 1e5 + 10;

int K, N;
vector<pair<int, int>> a;

void solve(){
    cin >> K >> N;
    ll sum = 0;
    for(int i=1; i<=N; i++){
        char ta, tb;
        int aa, bb;
        cin >> ta >> aa >> tb >> bb;
        if(ta == tb){
            sum += abs(bb - aa);
        }
        else{
            sum += abs(bb - aa) + 1;
            a.push_back(make_pair(min(aa, bb), max(aa, bb)));
        }
    }
    
    if(K == 1){
        vector<int> ord, pMax, pMin;
        for(auto o: a){
            ord.push_back(o.fi);
            ord.push_back(o.se);
            pMax.push_back(o.se);
            pMin.push_back(o.fi);
        }
        cps(ord);
        sort(ALL(pMax));
        sort(ALL(pMin));
        vector<ll> pre(sz(a) + 3), suf(sz(a) + 3);
        for(int i=1; i<=sz(a); i++){
            pre[i] = pre[i - 1] + pMax[i - 1];
        }
        for(int i=sz(a); i>=1; i--){
            suf[i] = suf[i + 1] + pMin[i - 1];
        }
        // for(int i=0; i<sz(a); i++){
        //     cout << pMin[i] << ' ' << pMax[i] << '\n';
        // }
        ll ans = oo;
        for(int i: ord){
            int l = lower_bound(ALL(pMax), i) - pMax.begin();
            ll cur = 1LL * i * l - (pre[l]);
            int r = upper_bound(ALL(pMin), i) - pMin.begin();
            cur += suf[r + 1] - 1LL * i * (sz(a) - r);
            minimize(ans, cur);
        }
        cout << sum + ans * 2 << '\n';
        return;
    }
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
//    freopen("mmgraph.inp", "r", stdin);
//    freopen("mmgraph.out", "w", stdout);

    int t = 1;
   // cin >> t;
    while(t--){
        solve();
    }

    return 0;
}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -