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- #include <iostream>
- #include <vector>
- #include<algorithm>
- using namespace std;
- int main()
- {
- int i,j,n,m,a,b,maxi=0,count;
- cin>>n>>m;
- vector <int> ppl[110], temp;
- for(i=1;i<=n;i++)ppl[i].push_back(i);
- for(i=0;i<m;i++)
- {
- cin>>a>>b;
- for(j=0;j<ppl[a].size() or j<ppl[b].size();j++)
- {
- if(j<ppl[a].size())temp.push_back(ppl[a][j]);
- if(j<ppl[b].size())temp.push_back(ppl[b][j]);
- }
- ppl[a].clear();
- ppl[b].clear();
- ppl[a]=temp;
- ppl[b]=temp;
- temp.clear();
- }
- for(i=1;i<=n;i++)
- {
- count=0;
- sort(ppl[i].begin(),ppl[i].end());
- /*for(j=0;j<ppl[i].size();j++)
- {
- cout<<ppl[i][j]<<' ';
- }*/
- for(j=1;j<ppl[i].size();j++)
- {
- if(ppl[i][j]!=ppl[i][j-1])count++;
- }
- if(maxi<count)maxi=count;
- }
- cout<<maxi;
- return 0;
- }
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