Compilare: main.cpp: In function 'void solve()': main.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ll i=0; i<v.size(); ++i){ ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:11:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("taietura.in", "r", stdin); ^ main.cpp:12:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("taietura.out", "w", stdout); ^ main.cpp: In function 'void read()': main.cpp:21:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ main.cpp:25:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &list[i]); ^