#include "crocodile.h" #include <bits/stdc++.h> #define long long long #define pii pair<long, long> #define x first #define y second using namespace std; const int N = 1e5+5; int chk[N]; vector<pii> g[N]; int travel_plan(int n, int m, int r[][2], int l[], int k, int p[]) { for(int i = 0; i < m; i++) { int a = r[i][0], b = r[i][1], c = l[i]; g[a].emplace_back(b, c); g[b].emplace_back(a, c); } priority_queue<pii, vector<pii>, greater<pii> > Q; for(int i = 0; i < k; i++) { chk[p[i]] = 1; Q.emplace(0, p[i]); } while(!Q.empty()) { pii now = Q.top(); Q.pop(); ++chk[now.y]; if(chk[now.y] != 2) continue; if(!now.y) return now.x; for(pii v : g[now.y]) if(chk[v.x] < 2) Q.emplace(now.x + v.y, v.x); } }

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:35:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^