Compilare: main.cpp: In function 'int main()': main.cpp:11:265: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int uz[NMAX];int i,lg,nr,n,j,m;int s[NMAX];void citire();void dfs(int k);void dfs1(int k);void reset();int main(){citire();for(i=1; i<=n; i++)if(!uz[i])dfs(i);reset();while(lg>0){if(!uz[s[lg]]){nr++;dfs1(s[lg]);}lg--;}fout<<nr<<'\n';for(i=1; i<=nr; i++){for(j=0;j<afis[i].size();j++)fout<<afis[i][j]<<' '; fout<<'\n';}return 0;}void citire(){int i,j,x,y; ~^~~~~~~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:11:358: warning: unused variable 'j' [-Wunused-variable] int uz[NMAX];int i,lg,nr,n,j,m;int s[NMAX];void citire();void dfs(int k);void dfs1(int k);void reset();int main(){citire();for(i=1; i<=n; i++)if(!uz[i])dfs(i);reset();while(lg>0){if(!uz[s[lg]]){nr++;dfs1(s[lg]);}lg--;}fout<<nr<<'\n';for(i=1; i<=nr; i++){for(j=0;j<afis[i].size();j++)fout<<afis[i][j]<<' '; fout<<'\n';}return 0;}void citire(){int i,j,x,y; ^ main.cpp: In function 'void dfs(int)': main.cpp:26:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[k].size(); i++) ~^~~~~~~~~~~~ main.cpp: In function 'void dfs1(int)': main.cpp:40:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<gt[k].size(); i++) ~^~~~~~~~~~~~~