oj.uz

Submission #407093

# Submission time Handle Problem Language Result Execution time Memory
407093 2021-05-18T13:06:50 Z tranxuanbach Palembang Bridges (APIO15_bridge) C++17
22 / 100
 53 ms 6124 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#define endl '\n'
#define fi first
#define se second
#define For(i, l, r) for (int i = l; i < r; i++)
#define ForE(i, l, r) for (int i = l; i <= r; i++)
#define FordE(i, l, r) for (int i = l; i >= r; i--)
#define Fora(v, a) for (auto v: a)
#define bend(a) a.begin(), a.end()
#define isz(a) ((signed)a.size())

typedef long long ll;
typedef long double ld;
typedef pair <int, int> pii;
typedef vector <int> vi;
typedef vector <pii> vpii;
typedef vector <vi> vvi;

const int N = 1e5 + 5;

struct Citizen{
    char P; int S; char Q; int T;

    Citizen(char P = '?', int S = 0, char Q = '?', int T = 0): P(P), S(S), Q(Q), T(T){

    }
};

int k, n;
Citizen citizens[N];

ll ans;
pii a[N];

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    // freopen("KEK.inp", "r", stdin);
    // freopen("KEK.out", "w", stdout);
    cin >> k >> n;
    ForE(i, 1, n){
        cin >> citizens[i].P >> citizens[i].S >> citizens[i].Q >> citizens[i].T;
    }
    {
        int tn = 0;
        ForE(i, 1, n){
            if (citizens[i].P == citizens[i].Q){
                ans += abs(citizens[i].S - citizens[i].T);
                continue;
            }
            a[++tn] = make_pair(min(citizens[i].S, citizens[i].T), max(citizens[i].S, citizens[i].T));
            ans += a[tn].se - a[tn].fi + 1;
        }
        n = tn;
    }
    if (k == 1){
        vi cac;
        ForE(i, 1, n){
            cac.emplace_back(a[i].fi); cac.emplace_back(a[i].se);
        }
        sort(bend(cac));
        int pos = cac[n];
        ForE(i, 1, n){
            ans += 2 * max(0, max(a[i].fi - pos, pos - a[i].se));
        }
        cout << ans << endl;
    }
}

/*
is this slope trick?
==================================================+
INPUT:                                            |
--------------------------------------------------|
1 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
--------------------------------------------------|
==================================================+
OUTPUT:                                           |
--------------------------------------------------|

--------------------------------------------------|
==================================================+
*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1868 KB Output is correct
2 Correct 2 ms 1868 KB Output is correct
3 Correct 2 ms 1868 KB Output is correct
4 Correct 2 ms 1868 KB Output is correct
5 Correct 2 ms 1868 KB Output is correct
6 Correct 3 ms 1936 KB Output is correct
7 Correct 2 ms 1868 KB Output is correct
8 Correct 3 ms 1868 KB Output is correct
9 Correct 3 ms 1868 KB Output is correct
10 Correct 2 ms 1868 KB Output is correct
11 Correct 2 ms 1900 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1868 KB Output is correct
2 Correct 2 ms 1868 KB Output is correct
3 Correct 2 ms 1868 KB Output is correct
4 Correct 2 ms 1868 KB Output is correct
5 Correct 2 ms 1868 KB Output is correct
6 Correct 2 ms 1868 KB Output is correct
7 Correct 2 ms 1868 KB Output is correct
8 Correct 2 ms 1868 KB Output is correct
9 Correct 2 ms 1912 KB Output is correct
10 Correct 3 ms 1844 KB Output is correct
11 Correct 3 ms 1876 KB Output is correct
12 Correct 29 ms 4580 KB Output is correct
13 Correct 53 ms 6080 KB Output is correct
14 Correct 37 ms 4876 KB Output is correct
15 Correct 30 ms 4288 KB Output is correct
16 Correct 37 ms 5576 KB Output is correct
17 Correct 43 ms 6092 KB Output is correct
18 Correct 44 ms 5692 KB Output is correct
19 Correct 48 ms 6124 KB Output is correct
20 Correct 36 ms 5704 KB Output is correct
21 Correct 46 ms 5832 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1868 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1868 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1868 KB Output isn't correct
2 Halted 0 ms 0 KB -