Compilare: user.cpp: In function ‘int main()’: user.cpp:15:39: warning: unused variable ‘k’ [-Wunused-variable] int n,m,i,j,st,p0,maxi,lsecv,mini,k,dr,mid; ^ user.cpp:15:41: warning: unused variable ‘dr’ [-Wunused-variable] int n,m,i,j,st,p0,maxi,lsecv,mini,k,dr,mid; ^ user.cpp:15:44: warning: unused variable ‘mid’ [-Wunused-variable] int n,m,i,j,st,p0,maxi,lsecv,mini,k,dr,mid; ^ user.cpp:16:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&m); ^ user.cpp:19:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&a[i][j]); ^