Compilare: user.cpp: In function ‘int main()’: user.cpp:12:38: warning: unused variable ‘sol’ [-Wunused-variable] int x,y,s=0,i,j,g,w,min=99999999,sol; ^ user.cpp:25:22: warning: array subscript is above array bounds [-Warray-bounds] mat[2][j]=max(x,y); ^ user.cpp:28:22: warning: array subscript is above array bounds [-Warray-bounds] mat[2][j]=mat[1][j]; ^ user.cpp:31:28: warning: array subscript is above array bounds [-Warray-bounds] mat[1][j]=mat[2][j]; ^