Compilare: main.cpp:13:5: warning: built-in function 'pow' declared as non-function [-Wbuiltin-declaration-mismatch] 13 | int pow[3005]; | ^~~ main.cpp: In function 'void dfs(int, int)': main.cpp:24:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:37:21: warning: unused variable 'k' [-Wunused-variable] 37 | long long n,i,j,k,l,suma=0,a,b,cost,x; | ^ main.cpp:37:23: warning: unused variable 'l' [-Wunused-variable] 37 | long long n,i,j,k,l,suma=0,a,b,cost,x; | ^ main.cpp:37:25: warning: unused variable 'suma' [-Wunused-variable] 37 | long long n,i,j,k,l,suma=0,a,b,cost,x; | ^~~~ main.cpp:53:15: warning: iteration 3004 invokes undefined behavior [-Waggressive-loop-optimizations] 53 | pow[i]=(pow[i-1]*2)%mod; | ~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:51:14: note: within this loop 51 | for(i=1;i<=3005;i++) | ~^~~~~~