Compilare: user.cpp: In function ‘int main()’: user.cpp:25:15: warning: unused variable ‘m’ [-Wunused-variable] int i,j,n,m,max,pmax,con,nr,c; ^ user.cpp:28:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&c); ^ user.cpp:30:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&timp[i],&cost[i]); ^