Compilare: user.cpp: In function ‘int main()’: user.cpp:79:17: warning: unused variable ‘st’ [-Wunused-variable] int x,i,c,m,st,dr,mij; ^ user.cpp:79:20: warning: unused variable ‘dr’ [-Wunused-variable] int x,i,c,m,st,dr,mij; ^ user.cpp:79:23: warning: unused variable ‘mij’ [-Wunused-variable] int x,i,c,m,st,dr,mij; ^ user.cpp:83:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:85:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i]); ^ user.cpp:86:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ user.cpp:89:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&c,&x); ^