Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:45:26: error: ‘x’ was not declared in this scope insert_value(x); ^ user.cpp:47:25: error: ‘x’ was not declared in this scope erase_value(x); ^ user.cpp:49:27: error: ‘x’ was not declared in this scope if(find_value(x) != v[x%m].end()){ ^ user.cpp:38:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.in", "r", stdin); ^ user.cpp:39:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.out", "w", stdout); ^ user.cpp:41:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:43:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&op,&nr); ^