Compilare: user.cpp: In function ‘int main()’: user.cpp:8:55: warning: variable ‘v’ set but not used [-Wunused-but-set-variable] int mat[501][501],i,n,m,j,x,y,s1=0,s2=0,s3=0,s4=0,v[5],maxim=-1,pozmax,c1,c2,c3,c4,aux,aux1,a[5],rezc,c; ^ user.cpp:8:88: warning: unused variable ‘aux’ [-Wunused-variable] int mat[501][501],i,n,m,j,x,y,s1=0,s2=0,s3=0,s4=0,v[5],maxim=-1,pozmax,c1,c2,c3,c4,aux,aux1,a[5],rezc,c; ^ user.cpp:8:92: warning: unused variable ‘aux1’ [-Wunused-variable] int mat[501][501],i,n,m,j,x,y,s1=0,s2=0,s3=0,s4=0,v[5],maxim=-1,pozmax,c1,c2,c3,c4,aux,aux1,a[5],rezc,c; ^ user.cpp:8:97: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] int mat[501][501],i,n,m,j,x,y,s1=0,s2=0,s3=0,s4=0,v[5],maxim=-1,pozmax,c1,c2,c3,c4,aux,aux1,a[5],rezc,c; ^ user.cpp:8:102: warning: unused variable ‘rezc’ [-Wunused-variable] int mat[501][501],i,n,m,j,x,y,s1=0,s2=0,s3=0,s4=0,v[5],maxim=-1,pozmax,c1,c2,c3,c4,aux,aux1,a[5],rezc,c; ^ user.cpp:146:34: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<pozmax<<" "<<maxim<<" "<<c; ^ user.cpp:126:24: warning: ‘pozmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (s3==maxim && c3<pozmax) ^