Compilare: main.cpp: In function 'int lee1(int, int)': main.cpp:30:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int lee2(int, int)': main.cpp:51:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:57:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> car[i] + 1; ~~~~~~~^~~ main.cpp:75:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int h = 0; h < lista[a[i][j]].size(); h++) ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:90:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < lista[x].size(); i++) ~~^~~~~~~~~~~~~~~~~