Eroare de compilare: user.cpp: In function ‘int usu(int)’: user.cpp:12:12: error: ‘cat1’ was not declared in this scope poz=p1[cat1[a-1]+nr]-p1[am1[a-1]]-p0[am0[a-1]]+p0[am0[a-1]-nr+1]+p1[am1[b]]-p1[am1[b]-nr2+1]-p0[am0[b]]-p0[am0[b+nr2]]; ^~~~ user.cpp:10:9: warning: unused variable ‘act’ [-Wunused-variable] int act=0,poz=0; ^~~ user.cpp:13:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:24:9: error: ‘cat0’ was not declared in this scope cat0[i]=cat0[i-1]; ^~~~ user.cpp:25:9: error: ‘cat1’ was not declared in this scope cat1[i]=cat1[i-1]; ^~~~