Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:12:9: error: ‘i’ was not declared in this scope for(i=1; i<=m; i++)){ ^ user.cpp:12:24: error: expected primary-expression before ‘)’ token for(i=1; i<=m; i++)){ ^ user.cpp:12:24: error: expected ‘;’ before ‘)’ token user.cpp:11:9: warning: unused variable ‘a’ [-Wunused-variable] int a,b; ^ user.cpp:11:11: warning: unused variable ‘b’ [-Wunused-variable] int a,b; ^