Eroare de compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:11:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<a[x].size();i++) ^ user.cpp: In function ‘void dfs1(int)’: user.cpp:22:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<b[x].size();i++) ^ user.cpp:24:26: error: expected ‘]’ before ‘)’ token if(viz[b[x][i]==1) ^ user.cpp:27:1: error: expected ‘;’ before ‘}’ token } ^ user.cpp:26:13: warning: statement has no effect [-Wunused-value] }n*(n-1)/2 ^ user.cpp: At global scope: user.cpp:28:11: error: expected initializer before ‘n’ int main()n*(n-1)/2 ^