Compilare: user.cpp: In function ‘int main()’: user.cpp:31:20: warning: unused variable ‘d’ [-Wunused-variable] int v,i,j,x,y,c,d,dr; ^ user.cpp:31:22: warning: unused variable ‘dr’ [-Wunused-variable] int v,i,j,x,y,c,d,dr; ^ user.cpp:33:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&v,&n,&m); ^ user.cpp:35:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=n; i++) fscanf(f,"%d", &dmax[i]); ^ user.cpp:39:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d", &x,&y,&c); ^