Submission #755957

#	Time	Username	Problem	Language	Result	Execution time	Memory
755957		HaciyevAlik	사이버랜드 (APIO23_cyberland)	C++17	0 / 100	213 ms	8064 KiB

cyberland

#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ff first
#define ss second
const int mx=1e5+5;
int n,m,h,k,used[mx];
vector<pair<int,int>> g[mx];
void dfs(int u) {
    used[u]=1;
    for(int i=0;i<int(g[u].size());++i) {
        int v=g[u][i].ff;
        if(!used[v]&&v!=h) dfs(v);
    }
}
double solve(int N, int M, int K, int H, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {
    n=N,m=M,h=H,k=K;
    for(int i=0;i<n;++i) g[i].clear();
    memset(used,0,sizeof(used));
    for(int i=0;i<m;++i) {
        g[x[i]].pb({y[i],c[i]});
        g[y[i]].pb({x[i],c[i]});
    }
    set<int> s;
    dfs(0);
    for(int i=0;i<n;++i) {
        if(used[i]&&!arr[i]) s.insert(i);
    }
    memset(used,0,sizeof(used));
    priority_queue<pair<int,int>> pq;
    for(auto i:s) {
        pq.push({0,i});
    }
    int dis[mx];
    for(int i=0;i<n;++i) dis[i]=1e10;
    pq.push({0,0});
    dis[0]=0;
    while(!pq.empty()) {
        int u=pq.top().ss; pq.pop();
        if(used[u]) continue;
        used[u]=1;
        for(int i=0;i<int(g[u].size());++i) {
            int v=g[u][i].ff,w=g[u][i].ss;
            if(dis[u]+w<dis[v]) {
                dis[v]=dis[u]+w;
                pq.push({-dis[v],v});
            }
        }
    }
    if(!used[h]) {
        return -1;
    } else {
        return dis[h];
    }
}

Compilation message (stderr)

cyberland.cpp: In function 'double solve(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:36:33: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+10' to '2147483647' [-Woverflow]
   36 |     for(int i=0;i<n;++i) dis[i]=1e10;
      |                                 ^~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 19
• Subtask 5: 0 / 7
• Subtask 6: 0 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3