Compilare: user.cpp: In function ‘int main()’: user.cpp:7:32: warning: unused variable ‘lin’ [-Wunused-variable] int kp,i,j,m,n,max,t,ii,jj,lin,col,nr; ^ user.cpp:7:36: warning: unused variable ‘col’ [-Wunused-variable] int kp,i,j,m,n,max,t,ii,jj,lin,col,nr; ^ user.cpp:10:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:14:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:17:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i][j]); ^