Submission #1110203

#	Time	Username	Problem	Language	Result	Execution time	Memory
1110203		vjudge1	Board Game (JOI24_boardgame)	C++17	3 / 100	26 ms	4448 KiB

Main

#include<bits/stdc++.h>
using namespace std;
int n,m,k;
string s;
int f[60000];
vector<int>a[60000];
queue<int>q;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    if(fopen("c.INP","r")){
        freopen("c.INP","r",stdin);
        freopen("c.OUT","w",stdout);
    }
    cin >>n>>m>>k;
    while(m--){
        int x,y;
        cin >>x>>y;
        a[x].push_back(y);
        a[y].push_back(x);
    }
    for(int i=1;i<=n;i++){
        f[i]=-1;
    }
    cin>>s;
    int x;
    cin >>x;
    f[x]=0;
    q.push(x);
    for(int i=1;i<k;i++){
        cin >>x;
    }
    while(!q.empty()){
        int i=q.front();
        q.pop();
        for(auto o:a[i]){
            if(f[o]==-1){
                f[o]=f[i]+1;
                q.push(o);
            }
        }
    }
    for(int i=1;i<=n;i++){
        cout <<f[i]<<'\n';
    }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         freopen("c.INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:14:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         freopen("c.OUT","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 0 / 7
• Subtask 3: 0 / 7
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 9
• Subtask 7: 0 / 23
• Subtask 8: 0 / 9