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Submission #623757

# Submission time Handle Problem Language Result Execution time Memory
623757 2022-08-06T13:04:34 Z Vladth11 Roads (CEOI20_roads) C++14
15 / 100
 39 ms 4052 KB 
#include <bits/stdc++.h>
#define C 1
#define P 0
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <long double, pii> muchie;

const ll NMAX = 100001;
const ll VMAX = 101;
const ll INF = (1LL << 60);
const ll MOD = 1000000007;
const ll BLOCK = 447;
const ll base = 117;
const ll nr_of_bits = 18;
const ll inv2 = 500000004;

map <pii, pii> mp;
pii v[NMAX * 2];

struct ura{
    pii a, b;
};

vector <ura> sol;
map <pii, bool> scutit;
double slope = 1;

bool mic(pii a, pii b){
    pair <double, double> pa = {a.first * slope, a.second * slope};
    pair <double, double> pb = {b.first * slope, b.second * slope};
    return pa < pb;
}

bool cmp(pii a, pii b){
    return (mic(a, b));
}

int main() {
    //ifstream cin(".in");
    //ofstream cout(".out");
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, i;
    cin >> n;
    for(i = 1; i <= n; i++){
        pii a, b;
        cin >> a.first >> a.second >> b.first >> b.second;
        if(a.first != b.first)
            slope = (double)((double)a.second - (double)b.second) / (double)((double)a.first - (double)b.first);
        mp[a] = b;
        mp[b] = a;
        if(mic(a, b))
            swap(a, b);
        v[i] = a;
    }
    sort(v + 1, v + n + 1, cmp);
    for(i = 1; i < n; i++){
        sol.push_back({v[i], mp[v[i + 1]]});
    }
    for(auto x : sol){
        cout << x.a.first << " " << x.a.second << " " << x.b.first << " " << x.b.second << "\n";
    }
    return 0;
}

Subtask #1
0 / 0.0

# Verdict Execution time Memory Grader output
1 Failed 1 ms 212 KB Condition failed: "pf == Sline.end() || !Cross(S[*pi], S[*pf])"
2 Halted 0 ms 0 KB -

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 19 ms 2168 KB Output is correct
5 Correct 31 ms 4052 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 15 ms 2260 KB Output is correct
5 Correct 39 ms 3936 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Failed 2 ms 468 KB Condition failed: "!Cross(S[*pi], S[*pa])"
9 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 15 ms 2188 KB Output is correct
5 Correct 30 ms 4012 KB Output is correct
6 Failed 0 ms 212 KB Condition failed: "pf == Sline.end() || !Cross(S[*pi], S[*pf])"
7 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Failed 0 ms 212 KB Condition failed: "pf == Sline.end() || !Cross(S[*pi], S[*pf])"
2 Halted 0 ms 0 KB -

Subtask #6
0 / 40.0

# Verdict Execution time Memory Grader output
1 Failed 0 ms 212 KB Condition failed: "pf == Sline.end() || !Cross(S[*pi], S[*pf])"
2 Halted 0 ms 0 KB -