Compilare: user.cpp: In function ‘int main()’: user.cpp:73:24: warning: unused variable ‘st’ [-Wunused-variable] int i,j,p,vmin,x,y,st,dr,mid,res=0,cnt=0; ^ user.cpp:73:27: warning: unused variable ‘dr’ [-Wunused-variable] int i,j,p,vmin,x,y,st,dr,mid,res=0,cnt=0; ^ user.cpp:73:30: warning: unused variable ‘mid’ [-Wunused-variable] int i,j,p,vmin,x,y,st,dr,mid,res=0,cnt=0; ^ user.cpp: In function ‘void Read(int&)’: user.cpp:63:47: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==DIM) fread(buff,1,DIM,fin),poz=0; ^ user.cpp:67:51: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==DIM) fread(buff,1,DIM,fin),poz=0; ^ user.cpp: In function ‘int main()’: user.cpp:75:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&p); ^ user.cpp:76:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&N,&M,&K); ^ user.cpp: In function ‘int Find_min()’: user.cpp:56:12: warning: ‘res’ may be used uninitialized in this function [-Wmaybe-uninitialized] return res; ^