Compilare: main.cpp: In function 'void bfsx(int)': main.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < mu[aux].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void bfsy(int)': main.cpp:48:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < mu[aux].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void afisare(int)': main.cpp:78:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0 ; j < mu[i].size(); j++) ~~^~~~~~~~~~~~~~ main.cpp: In function 'void afisare_v(int)': main.cpp:90:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0 ; j < v[i].size(); j++) ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:127:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < rez.size(); i++) ~~^~~~~~~~~~~~ main.cpp:98:32: warning: unused variable 'j' [-Wunused-variable] int n, m, x, y, nr = 0, i, j; ^