Compilare: user.cpp: In function ‘int main()’: user.cpp:53:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<Intervale.size()-1;++i) ^ user.cpp:60:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<Intervale.size();++i) ^ user.cpp:72:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<Intervale.size();++i) ^ user.cpp:40:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reborn.in","r",stdin); ^ user.cpp:41:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reborn.out","w",stdout); ^ user.cpp:43:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&N,&M,&Q); ^ user.cpp:47:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&X,&Y); ^ user.cpp:83:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&X,&Y); ^