Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:17:9: error: redeclaration of ‘int i’ int i; ^ user.cpp:14:17: error: ‘int i’ previously declared here int n,a,b,c,i; ^ user.cpp: In function ‘void countsort(int*, int*)’: user.cpp:32:16: error: ‘n’ was not declared in this scope for(i=1;i<=n;++i) ^ user.cpp:36:11: error: ‘n’ was not declared in this scope for(i=n;i>=1;--i) ^ user.cpp: In function ‘int main()’: user.cpp:18:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&n,&a,&b,&c); ^