Eroare de compilare: user.cpp: In function ‘void Calc(int, int)’: user.cpp:46:10: error: ‘refer’ was not declared in this scope refer=false; ^ user.cpp:54:29: error: ‘nr1’ was not declared in this scope nr1=nr1*10+a[i][j][k]-'0'; ^ user.cpp:58:29: error: ‘nr2’ was not declared in this scope nr2=nr2*10+a[i][j][k]-'0'; ^ user.cpp: In function ‘void Rezv()’: user.cpp:70:28: warning: NULL used in arithmetic [-Wpointer-arith] if(a[i][j][0]!=NULL) ^ user.cpp:66:13: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k,nr1,nr2,sum=0; ^ user.cpp:66:15: warning: unused variable ‘nr1’ [-Wunused-variable] int i,j,k,nr1,nr2,sum=0; ^ user.cpp:66:19: warning: unused variable ‘nr2’ [-Wunused-variable] int i,j,k,nr1,nr2,sum=0; ^ user.cpp:66:23: warning: unused variable ‘sum’ [-Wunused-variable] int i,j,k,nr1,nr2,sum=0; ^ user.cpp:67:10: warning: unused variable ‘refer’ [-Wunused-variable] bool refer; ^