Compilare: user.cpp: In function ‘int main()’: user.cpp:28:16: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while(Size>1&&v[Size].start==1+v[Size-1].end||v[Size].end+1==v[Size-1].start) ^ user.cpp:20:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d",&N,&M); ^ user.cpp:26:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&v[++Size].start); ^