Eroare de compilare: user.cpp: In function ‘int binary_search0(int, int, int)’: user.cpp:20:8: error: ‘mid’ was not declared in this scope if( A[mid] == target ) return mid; ^ user.cpp:21:2: error: ‘mid’ was not declared in this scope mid--; ^ user.cpp: In function ‘int binary_search1(int, int, int)’: user.cpp:36:8: error: ‘mid’ was not declared in this scope if( A[mid] <= target ) return mid; ^ user.cpp:37:2: error: ‘mid’ was not declared in this scope mid--; ^ user.cpp: In function ‘int binary_search2(int, int, int)’: user.cpp:51:8: error: ‘mid’ was not declared in this scope if( A[mid] >= target ) return mid; ^ user.cpp:52:9: error: ‘mid’ was not declared in this scope return mid + 1; ^ user.cpp:53:1: warning: control reaches end of non-void function [-Wreturn-type] } ^