Submission #1037750

#	Time	Username	Problem	Language	Result	Execution time	Memory
1037750		stdfloat	Palembang Bridges (APIO15_bridge)	C++17	22 / 100	24 ms	3664 KiB

bridge

#include <bits/stdc++.h>
using namespace std;
    
using ll = long long;
    
#define ff  first
#define ss  second
#define pii pair<int, int>
    
ll f(int x, vector<pii> &v) {
    ll sm = 0;
    for (auto i : v) sm += abs(i.ff - x) + 1 + abs(i.ss - x);
    
    return sm;
}
    
int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    
    int k, n;
    cin >> k >> n;
    
    ll sm = 0;
    vector<pii> v;
    for (int i = 0; i < n; i++) {
        char p, q;
        int s, t;
        cin >> p >> s >> q >> t;
    
        if (p == q) sm += abs(t - s);
        else v.push_back({s, t});
    }
    
    int l = 0, r = (int)1e9;
    while (l <= r) {
        int md = (l + r) >> 1;
    
        if (f(md, v) >= f(md + 1, v)) l = md + 1;
        else r = md - 1;
    }
    
    cout << sm + f(l, v);
}

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