Compilare: user.cpp: In member function ‘void SegmentTree::internalUpdate(int, int, int)’: user.cpp:59:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(l<r) ^ user.cpp: In function ‘void scan()’: user.cpp:104:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&noQ); ^ user.cpp: In function ‘void scanTest()’: user.cpp:113:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&qType); ^ user.cpp:115:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&qPos,&qM); ^