Eroare de compilare: main.cpp: In function 'long long int dfs(int, int)': main.cpp:19:10: warning: statement has no effect [-Wunused-value] for(i; i<=k; ++i){ ^ main.cpp:22:4: error: expected ';' before 'for' for(auto it: a[x]){ ^~~ main.cpp:51:1: error: expected '}' at end of input } ^ main.cpp:51:1: error: expected '}' at end of input main.cpp:5:11: warning: unused variable 'second' [-Wunused-variable] #define s second ^ main.cpp:15:8: note: in expansion of macro 's' ll s=0; ^ main.cpp:51:1: error: expected '}' at end of input } ^ main.cpp:51:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ Non zero exit status: 1