Compilare: main.cpp: In function 'void solve::erase()': main.cpp:198:12: warning: unused variable 's' [-Wunused-variable] T *s, *t; ^ main.cpp:198:16: warning: unused variable 't' [-Wunused-variable] T *s, *t; ^ main.cpp: In function 'void solve::print(std::vector<int>&)': main.cpp:211:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(auto it : ans) cout << it << ' '; cout << '\n'; ^~~ main.cpp:211:47: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(auto it : ans) cout << it << ' '; cout << '\n'; ^~~~ main.cpp: In function 'void solve::query_dist()': main.cpp:227:12: warning: unused variable 's' [-Wunused-variable] T *s, *t, *p, *q; ^ main.cpp:227:16: warning: unused variable 't' [-Wunused-variable] T *s, *t, *p, *q; ^ main.cpp:227:20: warning: unused variable 'p' [-Wunused-variable] T *s, *t, *p, *q; ^ main.cpp:227:24: warning: unused variable 'q' [-Wunused-variable] T *s, *t, *p, *q; ^ main.cpp: In function 'int main()': main.cpp:259:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("drumuri4.in", "r", stdin); ^ main.cpp:260:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("drumuri4.out", "w", stdout); ^