#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {
cerr<<vars<<" = ";
string delim="";
(...,(cerr<<delim<<values,delim=", "));
cerr<<"\n";
}
#else
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {}
#endif
#define FOR(i,j,n) for(int i=j;i<n;i++)
#define pb push_back
#define sz(x) (int)(x.size())
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
template<typename T> inline void maxa(T& a,T b){a=max(a,b);}
template<typename T> inline void mina(T& a,T b){a=min(a,b);}
/*
subtask 1: make a line graph
subtask 2: make multiple line graphs, make sure no components have contradictions
subtask 3: make multiple rings, make sure no contradictions
subtask 4: in each component, make components of 2s. Form these into rings. connect the rings.
then get components of ones and make them into line graphs.
subtask 5: subtask 4 and check for contradictions
subtask 6: for the components of 3, make a ring and add an extra edge
rings must have at least 3 nodes
3-rings must have at least 4 nodes
*/
int construct(vector<vector<int>> p){
return 0;
}
int main(){
cin.sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#ifdef LOCAL
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif
}
Compilation message
/usr/bin/ld: /tmp/ccZcZMpc.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccqtjPRc.o:supertrees.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status
