Compilare: user.cpp: In function ‘int main()’: user.cpp:9:43: warning: unused variable ‘z3’ [-Wunused-variable] int n,m,x,y,z1[505][505],z2[505][505],z3[505][505],z4[505][505],a[505][505],z,g,k; ^ user.cpp:9:56: warning: unused variable ‘z4’ [-Wunused-variable] int n,m,x,y,z1[505][505],z2[505][505],z3[505][505],z4[505][505],a[505][505],z,g,k; ^ user.cpp:9:83: warning: unused variable ‘g’ [-Wunused-variable] int n,m,x,y,z1[505][505],z2[505][505],z3[505][505],z4[505][505],a[505][505],z,g,k; ^ user.cpp:11:26: warning: unused variable ‘s3’ [-Wunused-variable] int maxi=0,s1=0,s2=0,s3=0,s4=0,g1,g2,g3,g4,k1,k2,k3,k4; ^ user.cpp:11:31: warning: unused variable ‘s4’ [-Wunused-variable] int maxi=0,s1=0,s2=0,s3=0,s4=0,g1,g2,g3,g4,k1,k2,k3,k4; ^ user.cpp:11:42: warning: unused variable ‘g3’ [-Wunused-variable] int maxi=0,s1=0,s2=0,s3=0,s4=0,g1,g2,g3,g4,k1,k2,k3,k4; ^ user.cpp:11:45: warning: unused variable ‘g4’ [-Wunused-variable] int maxi=0,s1=0,s2=0,s3=0,s4=0,g1,g2,g3,g4,k1,k2,k3,k4; ^ user.cpp:11:54: warning: unused variable ‘k3’ [-Wunused-variable] int maxi=0,s1=0,s2=0,s3=0,s4=0,g1,g2,g3,g4,k1,k2,k3,k4; ^ user.cpp:11:57: warning: unused variable ‘k4’ [-Wunused-variable] int maxi=0,s1=0,s2=0,s3=0,s4=0,g1,g2,g3,g4,k1,k2,k3,k4; ^ user.cpp:71:31: warning: ‘k2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<z<<" "<<maxi<<" "<<k; ^ user.cpp:63:26: warning: ‘j02’ may be used uninitialized in this function [-Wmaybe-uninitialized] g2=s2-z2[i02][j02]; ^ user.cpp:63:26: warning: ‘i02’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:66:5: warning: ‘g2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(g2>maxi){ ^ user.cpp:37:24: warning: ‘j0’ may be used uninitialized in this function [-Wmaybe-uninitialized] g1=s1-z1[i0][j0]; ^ user.cpp:37:24: warning: ‘i0’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:66:5: warning: ‘g1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(g2>maxi){ ^