Submission #1059032

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1059032	2024-08-14 16:16:44	qwusha	Fountain Parks (IOI21_parks)	C++17	70 / 100	1029 ms	170344 KiB

parks

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define fi first
#define se second
typedef long double ld;
const ld eps = 1e-8;
mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());
const ll inf = 1e18;
const ll mod = 1e9 + 7;
#include "parks.h"
vector<vector<int>> g;
vector<int> u, v, a, b;
vector<int> used;
void dfs(int ver) {
    used[ver] = 1;
    for (auto nod : g[ver]) {
        if (!used[nod]) {
            u.push_back(ver);
            v.push_back(nod);
            dfs(nod);
        }
    }
}
 
 
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Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:71:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~
parks.cpp:90:43: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   90 |     while(!ben.empty() && used_ben.size() < n - 1) {
      |                           ~~~~~~~~~~~~~~~~^~~~~~~
parks.cpp:34:10: warning: variable 'fir' set but not used [-Wunused-but-set-variable]
   34 |     bool fir = 1, sec = 1, thi = 1;
      |          ^~~
parks.cpp:34:19: warning: unused variable 'sec' [-Wunused-variable]
   34 |     bool fir = 1, sec = 1, thi = 1;
      |                   ^~~
parks.cpp:34:28: warning: unused variable 'thi' [-Wunused-variable]
   34 |     bool fir = 1, sec = 1, thi = 1;
      |                            ^~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20
• Subtask 6: 0 / 30