oj.uz

답안 #719306

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
719306 2023-04-05T17:59:23 Z Joshi503 경주 (Race) (IOI11_race) C++14
21 / 100
 3000 ms 9052 KB 
// #include "race.h"
#include <bits/stdc++.h>
using namespace std;
 
using ll = long long;
// #define int ll
using db = long double;
using str = string;
using pi = pair<int, int>;
using pl = pair<ll, ll>;
using pd = pair<db, db>;
#define f first
#define s second
 
#define tcT template<class T
#define tcTU tcT, class U
tcT> using V = vector<T>;
tcT, size_t SZ > using AR = array<T, SZ>;
using vi = V<int>;
using vb = V<bool>;
using vl = V<ll>;
using vd = V<db>;
using vs = V<str>;
using vpi = V<pi>;
using vpl = V<pl>;
 
#define sz(x) ll((x).size())
#define bg(x) begin(x)
#define all(x) bg(x), end(x)
#define rall(x) x.rbegin(), x.rend() 
#define sor(x) sort(all(x)) 
#define pb push_back
#define yes cout << "Y" << "e" << "s\n";
#define no cout << "N" << "o\n";
 
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = ((b)-1); i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define rep(a) F0R(_,a)
#define each(a,x) for (auto& a: x)
 
const int MOD = 998244353;
const int MOD98 = 998244353;
const int MX = 1e9;
// const int INF = 1e18;
const db PI = acos((db)-1);
// const int dx[] = { 1,0,-1,0 };
// const int dy[] = { 0,1,0,-1 };
mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count());
template<class T> using pqg = priority_queue<T, vector<T>, greater<T>>;
void setIO(string name = "") {
    ios_base::sync_with_stdio(0); cin.tie(0);
    if ((ll)(name.size())) {
        freopen((name + ".in").c_str(), "r", stdin);
        freopen((name + ".out").c_str(), "w", stdout);
    }
}
template<class T> bool ckmin(T& a, const T& b) {
    return b < a ? a = b, 1 : 0; 
} 
template<class T> bool ckmax(T& a, const T& b) {
    return a < b ? a = b, 1 : 0; 
}
void _print(char i) { cerr << i; }
void _print(string i) { cerr << i; }
void _print(float i) { cerr << i; }
void _print(int i) { cerr << i; }
void _print(double i) { cerr << i; }
void _print() { cerr << "\n"; };
template<typename x, typename y> void _print(pair<x, y>& t) { cerr << "{";_print(t.first);cerr << ", ";_print(t.second);cerr << "},"; }
template<typename x> void _print(x& t) { cerr << "{"; for (int i = 0;i < (int)t.size();i++) { _print(t[i]); if (i < (int)t.size() - 1) cerr << ", "; } cerr << "}"; }
template<typename x, typename... y> void _print(x a, y... b) { _print(a);if (sizeof...(b)) cerr << ", ";_print(b...); }
#define dbg(x...) cerr<<"["<<#x<<"] = [";_print(x);cerr<<"]\n";
int test;

/*



*/
int n, k;
vector<ll> d;
vector<vpi> adj;
int mini;
void dfs(int u, int p, int len = 1){
    each(v, adj[u]){
        if(v.f == p) continue;
        d[v.f] = d[u] + v.s;
        if(d[v.f] == k){
            mini = min(mini, len);
        }
        dfs(v.f, u, len + 1);
    }
}

int best_path(int N, int K, int H[][2], int L[]){
    adj = vector<vpi>(N + 1);
    n = N, k = K;
    F0R(i, N - 1){
        int u = H[i][0], v = H[i][1];
        adj[u].pb({v, L[i]});
        adj[v].pb({u, L[i]});
    }
    int ans = 1000000;
    F0R(i, N){
        mini = 1000000;
        d = vector<ll>(N + 1, 0);
        dfs(i, -1);
        ans = min(mini, ans);
    }
    if(ans == 1000000) return -1;
    return ans;
}
// signed main() {
//     setIO("");
//     int T = 1;
//     // cin >> T;
//     for (test = 1; test <= T; test++) {
//         // cout << "Case #" << test << ": " << a.f << " " << a.s << "\n";
//         // solve();
//         int N, K; cin >> N >> K; 
//         int H[N][2], L[N];
//         F0R(i, N - 1) cin >> H[i][0] >> H[i][1];
//         F0R(i, N) cin >> L[i];
//         cout << best_path(N, K, H, L);
//     }
// }

Compilation message

race.cpp: In function 'void setIO(std::string)':
race.cpp:55:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |         freopen((name + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
race.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |         freopen((name + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 16 ms 400 KB Output is correct
22 Correct 16 ms 408 KB Output is correct
23 Correct 17 ms 404 KB Output is correct
24 Correct 16 ms 468 KB Output is correct
25 Correct 15 ms 404 KB Output is correct
26 Correct 16 ms 340 KB Output is correct
27 Correct 15 ms 408 KB Output is correct
28 Correct 17 ms 408 KB Output is correct
29 Correct 17 ms 400 KB Output is correct
30 Correct 17 ms 340 KB Output is correct
31 Correct 17 ms 396 KB Output is correct
32 Correct 14 ms 408 KB Output is correct
33 Correct 27 ms 380 KB Output is correct
34 Correct 12 ms 340 KB Output is correct
35 Correct 11 ms 416 KB Output is correct
36 Correct 9 ms 424 KB Output is correct
37 Correct 8 ms 340 KB Output is correct
38 Correct 11 ms 404 KB Output is correct

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Execution timed out 3082 ms 9052 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 16 ms 400 KB Output is correct
22 Correct 16 ms 408 KB Output is correct
23 Correct 17 ms 404 KB Output is correct
24 Correct 16 ms 468 KB Output is correct
25 Correct 15 ms 404 KB Output is correct
26 Correct 16 ms 340 KB Output is correct
27 Correct 15 ms 408 KB Output is correct
28 Correct 17 ms 408 KB Output is correct
29 Correct 17 ms 400 KB Output is correct
30 Correct 17 ms 340 KB Output is correct
31 Correct 17 ms 396 KB Output is correct
32 Correct 14 ms 408 KB Output is correct
33 Correct 27 ms 380 KB Output is correct
34 Correct 12 ms 340 KB Output is correct
35 Correct 11 ms 416 KB Output is correct
36 Correct 9 ms 424 KB Output is correct
37 Correct 8 ms 340 KB Output is correct
38 Correct 11 ms 404 KB Output is correct
39 Execution timed out 3082 ms 9052 KB Time limit exceeded
40 Halted 0 ms 0 KB -