Eroare de compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 1 | #import<iostream> | ^~~~~~ main.cpp:2:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 2 | #import<algorithm> | ^~~~~~ main.cpp:3:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 3 | #import<bitset> | ^~~~~~ main.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 6 | main() | ^~~~ main.cpp: In function 'int main()': main.cpp:22:13: error: 'a' was not declared in this scope 22 | a[x]=1; | ^ Non zero exit status: 1