Compilare: user.cpp: In function ‘void citire()’: user.cpp:8:14: warning: unused variable ‘i’ [-Wunused-variable] int x,y,i,j; ^ user.cpp:8:16: warning: unused variable ‘j’ [-Wunused-variable] int x,y,i,j; ^ user.cpp: In function ‘void p1()’: user.cpp:23:21: warning: statement has no effect [-Wunused-value] a[i][j]==0; ^ user.cpp:29:22: warning: statement has no effect [-Wunused-value] a[i][j]==0; ^ user.cpp: In function ‘int main()’: user.cpp:38:5: warning: unused variable ‘i’ [-Wunused-variable] int i,j; ^ user.cpp:38:7: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘void p1()’: user.cpp:26:24: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(a[i+1][j]==-1) ^