Compilare: user.cpp: In function ‘int main()’: user.cpp:8:6: warning: unused variable ‘n’ [-Wunused-variable] int n,i,j,x,y,rez[201][201],l,r,prev; ^ user.cpp:8:34: warning: variable ‘prev’ set but not used [-Wunused-but-set-variable] int n,i,j,x,y,rez[201][201],l,r,prev; ^ user.cpp:14:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d\n",&l,&r); ^ user.cpp:18:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&c); ^ user.cpp:46:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&p); ^ user.cpp:49:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x,&y); ^