Submission #719298

#	Time	Username	Problem	Language	Result	Execution time	Memory
719298		Joshi503	Race (IOI11_race)	C++14	Compilation error	0 ms	0 KiB

race

#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


using vi = vector<int>;
using vpi = vector<pi>;

#define pb push_back

#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)

int test;

/*



*/
int n, k;
vi 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 = 1e18;
    F0R(i, N){
        mini = 1e18;
        d = vi(N + 1, 0LL);
        dfs(i, -1);
        ans = min(mini, ans);
    }
    return (ans == 1e18 ? -1 : ans);
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccyAZzTS.o: in function `main':
grader.cpp:(.text.startup+0x28): undefined reference to `best_path(int, int, int (*) [2], int*)'
collect2: error: ld returned 1 exit status