Compilare: user.cpp: In function ‘int Search(int, int)’: user.cpp:27:17: warning: right operand of comma operator has no effect [-Wunused-value] lw=mid+1,last-mid; ^ user.cpp: In function ‘int main()’: user.cpp:75:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d%d%d",&Case,&N,&M,&T); ^ user.cpp:78:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d",&tr[i].x,&tr[i].y); ^ user.cpp:85:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&L); ^