Compilare: main.cpp: In function 'void bfs()': main.cpp:51:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < mat[p].size(); ++i) { ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dijakstra()': main.cpp:83:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < mat[p].size(); ++i) { ~~^~~~~~~~~~~~~~~ main.cpp:76:9: warning: unused variable 'suma' [-Wunused-variable] int suma = 0; ^~~~