Submission #638057

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
638057	2022-09-04T13:02:34 Z	MohamedFaresNebili	timeismoney (balkan11_timeismoney)	C++14	100 / 100	602 ms	1072 KB

timeismoney

#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
 
            using namespace std;
            using ll = long long;
 
            #define int ll
 
            int N, M, P[205];
            vector<array<int, 5>> E;
 
            int findSet(int v) {
                if(P[v] == v) return v;
                return P[v] = findSet(P[v]);
            }
            int unionSet(int u, int v) {
                u = findSet(u), v = findSet(v);
                if(u == v) return 0;
                P[u] = v;
                return 1;
            }
 
            pair<pair<int, int>, vector<int>> solve(vector<int> W) {
                sort(E.begin(), E.end(),
                     [&](array<int, 5> A, array<int, 5> B) {
                     return W[A[4]] < W[B[4]];
                });
                for(int l = 0; l < N; l++) P[l] = l;
                int A = 0, B = 0; vector<int> mst;
                for(auto u : E) {
                    if(unionSet(u[0], u[1])) {
                        A += u[2], B += u[3];
                        mst.push_back(u[4]);
                    }
                }
                return {{A, B}, mst};
            }
 
            int area(pair<int, int> A, pair<int, int> B, pair<int, int> C) {
                pair<int, int> U = {B.first - A.first, B.second - A.second};
                pair<int, int> V = {C.first - A.first, C.second - A.second};
                return U.first * V.second - U.second * V.first;
            }
 
            int32_t main() {
                ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
                cin >> N >> M;
                for(int l = 0; l < M; l++) {
                    int U, V, T, C; cin >> U >> V >> T >> C;
                    E.push_back({U, V, T, C, l});
                }
                vector<int> res, W(M);
                pair<int, int> ans = {1e8, 1e8};
                for(int l = 0; l < M; l++)
                    W[E[l][4]] = E[l][2];
                pair<int, int> A, B, C; vector<int> cur;
                tie(A, res) = solve(W); ans = A;
                for(int l = 0; l < M; l++)
                    W[E[l][4]] = E[l][3];
                tie(B, cur) = solve(W);
                if(B.first * B.second < A.first * A.second) {
                    ans = B; res = cur;
                }
                vector<array<pair<int, int>, 2>> ST;
                ST.push_back({A, B});
                while(!ST.empty()) {
                    A = ST.back()[0]; B = ST.back()[1]; ST.pop_back();
                    for(int l = 0; l < M; l++)
                        W[E[l][4]] = E[l][3] * (B.first - A.first)
                        - E[l][2] * (B.second - A.second);
                    tie(C, cur) = solve(W);
                    if(C.first * C.second < ans.first * ans.second) {
                        ans = C; res = cur;
                    }
                    if(area(A, B, C) >= 0) continue;
                    ST.push_back({A, C}); ST.push_back({C, B});
                }
                cout << ans.first << " " << ans.second << "\n";
                sort(E.begin(), E.end(),
                     [&](array<int, 5> A, array<int, 5> B) {
                     return A[4] < B[4];
                });
                for(auto u : res) cout << E[u][0] << " " << E[u][1] << "\n";
                return 0;
            }
 

Subtask #1

100.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	2 ms	456 KB	Output is correct
8	Correct	6 ms	1072 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	5 ms	340 KB	Output is correct
15	Correct	4 ms	356 KB	Output is correct
16	Correct	71 ms	476 KB	Output is correct
17	Correct	74 ms	468 KB	Output is correct
18	Correct	69 ms	468 KB	Output is correct
19	Correct	589 ms	1040 KB	Output is correct
20	Correct	602 ms	1040 KB	Output is correct