Compilare: main.cpp: In function 'int cmmdc(int, int)': main.cpp:17:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:30:41: warning: array subscript is above array bounds [-Warray-bounds] fout<<cmmdc(a[i][j],a[i][j+1])<<"\n"; ^~~~