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:25:21: warning: statement has no effect [-Wunused-value] a[i][j]==0; ^ user.cpp:32:22: warning: statement has no effect [-Wunused-value] a[i][j]==0; ^ user.cpp: In function ‘int main()’: user.cpp:42:5: warning: unused variable ‘i’ [-Wunused-variable] int i,j; ^ user.cpp:42:7: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^