Submission #1200103

#	Time	Username	Problem	Language	Result	Execution time	Memory
1200103		prince	September (APIO24_september)	C++17	Compilation error	0 ms	0 KiB

september

#include "bits/stdc++.h"

using namespace std;

vector<vector<int>>g;
vector<bool>vis;
set<int>st;

void dfs(int u){
    vis[u]=true;
    for(int v:g[u]){
        if(!vis[v])st.insert(v),dfs(v);
    }
}

int solve(int n,int m,vector<int>&a,vector<vector<int>>&vol){
    g.assign(n,{});
    for(int i=0;i<n;i++){
        if(a[i]>=0)g[a[i]].push_back(i);
    }
    int mn = 1e9;
    for(int j=0;j<m;j++){
        st.clear();
        vis.assign(n,false);
        int cnt=0;
        for(int i=0;i+1<n;i++){
            int x = vol[j][i];
            if(st.count(x))st.erase(x);
            else dfs(x);
            if(st.empty())cnt++;
        }
        mn=min(mn,cnt);
    }
    cout<<mn;
}

Compilation message (stderr)

september.cpp: In function 'int solve(int, int, std::vector<int>&, std::vector<std::vector<int> >&)':
september.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type]
   35 | }
      | ^
/usr/bin/ld: /tmp/cc5mojXY.o: in function `mtbpdhr2zxjo1o4i9oreohsbuzzl4s6u::taskcase()':
grader.cpp:(.text+0x50d): undefined reference to `solve(int, int, std::vector<int, std::allocator<int> >, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status