Borderou de evaluare (job #840066)

Compilare: main.cpp: In function 'int main()': main.cpp:34:44: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int j = 0 ; j < G[fr].size() ; j ++ ){ | ~~~^~~~~~~~~~~~~~ main.cpp:44:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i = 0 ; i < lvl.size() ; i ++ ) | ~~^~~~~~~~~~~~ main.cpp:51:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int i = 0 ; i < lvl.size() ; i ++ ) | ~~^~~~~~~~~~~~ main.cpp:24:12: warning: 'rad' may be used uninitialized [-Wmaybe-uninitialized] 24 | viz[rad] = 1 ; | ^ main.cpp:10:29: note: 'rad' was declared here 10 | int n , q , x , nodes , rad ; | ^~~