Compilare: user.cpp: In function ‘void Maxify(int, int)’: user.cpp:14:15: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(l<=hlenght&&v[l].end>v[pos].end||(v[l].end==v[pos].end&&v[l].val<v[pos].val)) ^ user.cpp:18:15: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(r<=hlenght&&v[r].end>v[smallest].end||(v[r].end==v[smallest].end&&v[r].val<v[smallest].val)) ^ user.cpp: In function ‘int main()’: user.cpp:50:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("timbre.in","r",stdin); ^ user.cpp:51:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("timbre.out","w",stdout); ^ user.cpp:53:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&N,&M,&K); ^ user.cpp:55:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v[i].end,&v[i].val); ^